AI Prompts for Letter of Intent: 18 Templates Across ChatGPT, Claude And Gemini

A letter of intent exists to save everyone time. It gets the key commercial terms agreed on paper before either side pays lawyers to draft a full contract around terms that might still fall apart in negotiation. Most letters of intent either try to do too much, drifting into binding contract territory without meaning to, or say too little, a vague statement of interest that commits nobody to anything and wastes the time it was meant to save.

The 18 templates here, divided across ChatGPT, Claude and Gemini, treat a letter of intent as a precise, deliberately limited document. The ChatGPT prompts cover full drafts, plain-language summaries and quick term-sheet-style formats. The Claude prompts handle the binding-versus-non-binding distinction, exclusivity periods and the clauses that need to be exact. The Gemini prompts research jurisdiction norms and industry practice so the document reflects what a real contract negotiation of this kind typically looks like. As with any document that precedes a contract, this is a drafting starting point, not legal advice.

Why AI Works Well For Letters Of Intent

A letter of intent is a short document doing a very specific job: agree the headline terms without accidentally creating a binding contract before anyone wants one, in a way that still reflects the anatomy of a winning proposal it grew out of. AI handles that combination well once the brief is explicit about which parts should bind and which should not.

Each Model Has A Different Edge

ChatGPT is the most flexible for a first draft and quick reformatting into a term sheet. Claude is strongest on the binding-versus-non-binding line that has to be exact. Gemini is the right choice when industry or jurisdiction norms should shape what the letter actually covers.

Say Explicitly What Binds And What Does Not

The single most important sentence in a letter of intent states which sections are binding, typically confidentiality and exclusivity, and which are not, typically the commercial terms themselves. Leaving this implicit is how a letter of intent accidentally becomes an enforceable contract.

Cover The Terms That Actually Change The Deal

Price, structure, timeline and any major condition belong here. Detailed representations, warranties and boilerplate belong in the full agreement later. A letter of intent that tries to be a complete contract has usually stopped being useful as a letter of intent.

This Is A Drafting Starting Point, Not Legal Advice

Every template below produces a strong first draft. Have a qualified lawyer review any letter of intent before it is signed, particularly the binding-versus-non-binding language.

ChatGPT Prompts For Letters Of Intent

ChatGPT is the flexible workhorse for a first letter of intent draft, the same document creation speed that carries through once terms move to a full agreement. It handles full letters, plain-language summaries and quick term-sheet formats. These six ChatGPT prompts for letter of intent writing cover the situations that come up across M&A, real estate, partnerships and vendor deals. Each ChatGPT prompt for letter of intent below is built around a specific scenario, so you can pick the right ChatGPT prompt for letter of intent for the job rather than starting from a blank page.

1. Full Letter Of Intent From Scratch

Act as a dealmaker's drafting assistant producing a
standard letter of intent.
Context:
- Party A: [name]
- Party B: [name]
- Nature of the deal: [acquisition, partnership, lease, vendor
agreement, etc.]
- Key commercial terms: [price, structure, timeline, whatever
applies]
- Exclusivity period wanted, if any: [duration]
- Target date for full agreement: [date]
Write a complete letter of intent.
Sections:
1. Statement of intent, briefly, what the parties intend to do
2. Key commercial terms, as bullet points for clarity
3. Binding provisions (typically confidentiality, exclusivity,
governing law), clearly labelled as binding
4. Non-binding provisions (the commercial terms above), clearly
labelled as non-binding and subject to a definitive agreement
5. Exclusivity period, if applicable
6. Conditions to proceeding (due diligence, financing, approvals)
7. Expiration date of the letter itself
8. Signature blocks
Rules: the binding/non-binding distinction must be unambiguous.
Flag as a drafting starting point requiring legal review.

Where it works best: ChatGPT produces a complete letter with the binding and non-binding sections clearly separated, which is the detail most generic templates get wrong. This is the ChatGPT prompt for letter of intent most teams reach for first.

Best for: The first document exchanged once two parties agree on headline terms and want them on paper before full negotiation.

Turn the agreed terms into a branded letter in 60 seconds
Paste your website URL and Proposal.biz pulls your brand into a Smart Content Library, so the letter of intent and the full agreement that follows it both look like yours automatically.
Try for free

2. Term Sheet Format

Act as a dealmaker producing a term-sheet-style letter
of intent, more table than prose.
Context:
Deal type: [what kind of transaction]
Key terms: [list everything agreed so far, however rough]
Task:
Format this as a term sheet.
Structure:
- A table with two columns: Term, Detail
- Rows covering: parties, structure, price or value, timeline,
key conditions, exclusivity, expiration
- A short paragraph above the table stating the letter is
non-binding except for confidentiality and exclusivity
provisions, referenced separately below the table
Rules: keep prose minimal, the table should carry the substance.
Flag as a drafting starting point requiring legal review.

Where it works best: ChatGPT formats dense term information into a scannable table quickly, which many dealmakers prefer over dense paragraph text for a first-pass document.

Best for: Fast-moving deals where both sides want to see terms at a glance before investing in a full narrative letter.

3. Plain-Language Summary Of A Letter Of Intent

You are explaining a draft or signed letter of intent to
someone without a legal background.
Letter of intent text:
[paste the letter, or the sections in question]
Task:
Write a plain-language summary of what this letter actually
commits each party to.
Output:
- What the parties intend to do, in plain terms
- Which parts are binding right now versus which are not
- Any exclusivity period and what it prevents either side from
doing
- What happens next to get to a full agreement
Rules: no legal jargon. This is a plain-language summary, not
legal advice.

Where it works best: ChatGPT translates the binding-versus-non-binding distinction into language a business stakeholder can actually act on before signing.

Best for: Getting internal sign-off from someone who needs to understand the commitment but will not read the legal text closely.

4. Rewrite To Remove Accidental Binding Language

You are a contracts specialist checking a letter of
intent for language that could accidentally make the whole
document binding.
Draft:
[paste the letter of intent draft]
Task:
Review this draft and flag any language that could be read as
creating a binding obligation outside the intended binding
sections (confidentiality, exclusivity).
Instructions:
- Identify specific phrases that use commitment language ("shall",
"agrees to", "will") in sections meant to be non-binding.
- Rewrite flagged language to use clearly non-binding phrasing
("intends to", "anticipates", "subject to a definitive
agreement").
- Confirm the binding sections remain clearly and separately
labelled as binding.
Output: the revised draft, then a list of what was changed and
why.

Where it works best: ChatGPT is fast at spotting commitment language that has crept into sections meant to be non-binding, a common and genuinely risky drafting mistake.

Best for: Reviewing a draft before signature to confirm it will not be read as more binding than intended.

5. Letter Of Intent Cover Email

You are writing the short email that sends a letter of
intent to the other party.
Context:
Counterparty: [name]
Relationship so far: [negotiation stage, first contact after
verbal agreement]
Deadline to respond or sign, if any: [date]
Write a short, professional cover email.
Rules:
- Confirm what is attached and its non-binding nature (except
where noted).
- One sentence on what happens next once it is signed.
- Under 90 words.
- Confident and collaborative in tone, not adversarial.

Where it works best: ChatGPT writes a tone that keeps the moment collaborative rather than transactional, which matters since a letter of intent usually follows a verbal agreement both sides want to protect.

Best for: The message that actually gets a letter of intent reviewed and returned quickly.

6. Vendor Or Procurement Letter Of Intent (Bonus)

Act as a procurement lead's drafting assistant producing
a letter of intent for a vendor relationship before the full
contract is finalised.
Context:
Our company: [name]
Vendor: [name]
What is being procured: [goods or services]
Target start date: [date]
Key terms already agreed: [price, volume, timeline]
Write a letter of intent for this vendor relationship.
Sections: statement of intent, key terms agreed so far,
confirmation that this is non-binding except for confidentiality,
conditions to a full agreement (contract negotiation, credit
approval, etc.), expiration date, signature blocks.
Rules: keep the vendor's operational planning need in mind, they
may need this letter to justify early preparation on their side.
Flag as a drafting starting point requiring legal review.

Where it works best: ChatGPT adapts the standard structure cleanly to a procurement context, including the practical detail that a vendor often needs the letter to justify starting preparation work early.

Best for: Locking in a vendor relationship’s key terms while the full contract is still being negotiated.

Claude Prompts For Letters Of Intent

Claude is the right model when the binding-versus-non-binding line needs to be exact, or when a messy set of agreed terms needs to become a precise document, especially for consulting firms negotiating multi-stage engagements. These six Claude prompts for letter of intent writing handle the situations where precision matters most. Each Claude prompt for letter of intent below is built around a specific scenario, so you can pick the right Claude prompt for letter of intent for the job rather than starting from a blank page.

1. Full Letter Of Intent From A Messy Internal Request

You are a contracts specialist turning a rough internal
request into a precise letter of intent.
[paste the internal request, email thread, or notes describing
the deal, however unstructured]
Standard binding provisions we typically use: [confidentiality,
exclusivity, or your usual position]
Task:
Turn this request into a complete, correctly structured letter
of intent.
Instructions:
- Pull out the actual commercial terms agreed so far.
- Clearly separate binding provisions from non-binding ones,
labelling each section explicitly.
- Where the request is vague about exclusivity or timeline,
propose a reasonable default and label it as something to
confirm.
- Produce the full letter: statement of intent, terms, binding
provisions, conditions, expiration, signature blocks.
Flag as a drafting starting point requiring legal review before
it is sent to any counterparty.

Where it works best: Claude reads unstructured requests faithfully and is careful about maintaining a clean binding/non-binding separation even when the source material blurs the two. This is the Claude prompt for letter of intent most teams reach for first.

Best for: The common real-world case: someone asks for “an LOI for this deal” with terms scattered across emails and calls.

Know exactly when the counterparty opens the letter
Send the letter of intent as a trackable link instead of a flat PDF attachment, and see exactly when it was opened, so you know when to expect a signed response.
Try for free

2. Exclusivity Clause

You are a contracts specialist writing the exclusivity
clause of a letter of intent, one of the few sections meant to
be genuinely binding.
Context:
Deal type: [what kind of transaction]
Exclusivity period wanted: [duration]
What exclusivity should prevent: [e.g. negotiating with other
parties, soliciting other offers]
Consequence if breached: [what happens if the other side breaches
exclusivity]
Task:
Write an exclusivity clause.
Requirements:
- State clearly and specifically what the exclusive party is
prohibited from doing during the period.
- Set a clear start and end date or triggering event for the
period.
- State the clause is binding, distinct from the rest of the
letter.
- Address remedy briefly if breached, without turning this into
a full damages clause.
Explain in one sentence why the scope chosen is reasonable for
this kind of deal.

Where it works best: Claude is precise about scope, exactly what is and is not prohibited, which is where vague exclusivity clauses tend to cause disputes later.

Best for: Any letter of intent where one party needs real protection from being shopped around during negotiation.

3. Binding Confidentiality Section

You are a contracts specialist writing the confidentiality
section of a letter of intent, meant to bind immediately even
though the rest of the letter is not.
Context:
What information will be shared during negotiation: [describe it]
Term of confidentiality obligation: [duration]
Task:
Write a confidentiality section for the letter of intent.
Requirements:
- State explicitly that this section, unlike the commercial
terms, is binding upon signature.
- Define what counts as confidential, with standard exclusions
(already public, independently developed).
- State the term and what happens to information if the deal
does not proceed.
- Reference that this may be superseded by a separate NDA if one
exists, to avoid conflicting obligations.
Explain briefly why this specific section is the one made
binding immediately."

Where it works best: Claude keeps the immediate-binding framing precise and explicitly reconciles it with any separate NDA that might already be in place, avoiding a conflict between two documents.

Best for: Deals where sensitive information needs protecting from the moment negotiation begins, before any full contract exists.

4. Letter Of Intent For A Complex, Multi-Condition Deal

You are a contracts specialist drafting a letter of
intent for a deal with several conditions that must be satisfied
before it proceeds.
Context:
Deal type: [what kind of transaction]
Conditions to proceeding: [list them, e.g. due diligence,
financing approval, regulatory clearance, board approval]
Rough timeline for each condition: [if known]
Task:
Write a letter of intent with a clear conditions section.
Requirements:
- List every condition explicitly, with who is responsible for
satisfying it.
- State what happens if a condition is not satisfied, does the
letter simply expire, or is there a process to extend.
- Keep conditions distinct from the binding exclusivity and
confidentiality sections.
- Include a clear overall expiration date for the letter itself.
Flag as a drafting starting point requiring legal review.

Where it works best: Claude holds a multi-condition structure clearly, attributing responsibility for each condition rather than leaving it ambiguous who needs to act.

Best for: Deals with several genuine contingencies, financing, regulatory approval, board sign-off, that need to be tracked explicitly.

5. Letter Of Intent Redline Against A Counterparty’s Draft

You are a contracts specialist comparing a counterparty's
letter of intent draft against our position.
Our position or draft: [paste key terms or the full draft]
Counterparty's draft: [paste their draft]
Task:
Compare the two and produce a redline summary.
Output:
- A list of every material difference: commercial terms,
exclusivity length, binding provisions, conditions
- For each, a one-line note on whether it favours us, them, or
is neutral
- A recommended negotiating position for each material difference
Rules: be precise about what actually changed. Flag anything that
would make more of the letter binding than we intend.

Where it works best: Claude compares two documents accurately and is specifically alert to language that would expand what is binding beyond what was intended.

Best for: Reviewing a counterparty’s own letter of intent draft instead of sending your own.

6. Tighten An Existing Letter Of Intent Draft

You are a careful editor of legal drafting, working on
a letter of intent.
Draft:
[paste the full draft]
Task:
Tighten this draft without changing its legal substance.
Instructions:
- Simplify overly dense sentences without losing precision.
- Flag anywhere the binding/non-binding distinction is unclear,
since that is a substantive issue, not a style one.
- Note anything missing compared to a standard letter of intent
(e.g. no expiration date, no conditions section).
- Do not change terms or provisions, only clarity.
Output:
1. The tightened draft.
2. A list of anything flagged as ambiguous or missing, for legal
review before this goes any further.

Where it works best: Claude separates genuine clarity edits from the substantive binding/non-binding question and flags the latter explicitly rather than quietly resolving it either way.

Best for: A draft that covers the right terms but reads as dense or was assembled from mismatched sources.

Gemini Prompts For Letters Of Intent

Gemini’s live web grounding is the right tool when jurisdiction norms or industry practice should shape what the letter of intent actually covers before it is sent, right down to confirming who actually has signatory authority to sign it. These six Gemini prompts for letter of intent writing turn a generic draft into one grounded in current context. Each Gemini prompt for letter of intent below is built around a specific scenario, so you can pick the right Gemini prompt for letter of intent for the job rather than starting from a blank page.

1. Research-Backed Jurisdiction-Appropriate Letter

You are a contracts specialist who checks jurisdiction
norms before finalising a letter of intent.
Step 1: Research standard letter of intent practice and
enforceability considerations in [jurisdiction] for [deal type,
e.g. M&A, commercial real estate, vendor agreements]. Look for:
- Common practice on what is typically made binding
- Any statutory or case law considerations affecting enforceability
of non-binding language in this jurisdiction
Step 2: Write a letter of intent informed by what you find, for
[party A] and [party B] under [jurisdiction] law.
Requirements: cite the source for any jurisdiction-specific claim.
If you cannot verify something, say so rather than guessing. Flag
as a drafting starting point requiring local legal review.
This turns a generic AI prompt for letter of intent writing into
one grounded in the actual jurisdiction's norms.

Where it works best: Gemini’s live web grounding surfaces jurisdiction-specific enforceability considerations that a generic template would miss entirely. This is the Gemini prompt for letter of intent most teams reach for first.

Best for: Cross-border deals, or any letter of intent governed by a jurisdiction you do not draft in every day.

Draft, send and e-sign the whole deal chain in one window
Keep letter of intent, due diligence documents and the final agreement in one place: AI-assisted drafting, automatic branding, a trackable link to send, and built-in e-signature so nothing stalls waiting on a separate tool.
Try for free

2. Industry-Standard Deal Terms Benchmark

You are an analyst researching typical letter of intent
terms in a specific deal category, so ours does not look unusual
to a counterparty.
Step 1: Research typical letter of intent practice for [deal type,
e.g. small business acquisitions, commercial leases, technology
licensing]. Find:
- Common exclusivity period lengths
- Common conditions attached
- What is typically made binding versus non-binding
Step 2: Write a short benchmark summary, then flag anything in
our current draft that is unusually broad or narrow compared to
the norm.
Our current draft or key terms: [paste them]
Output: a paragraph on the industry norm with sources, then a
short list of anything in our draft worth reconsidering.

Where it works best: Gemini’s web grounding produces a credible industry benchmark that is hard for older models to source reliably.

Best for: Checking whether your standard exclusivity period or condition structure has drifted from what is normal in your specific deal category.

3. Recent Case Law On Non-Binding Language

You are a research lead checking recent developments
that might affect how non-binding language in a letter of intent
is actually enforced.
Step 1: Research recent court decisions or legal commentary in
[jurisdiction] in the last 12-24 months on the enforceability of
"non-binding" letters of intent, particularly around implied
obligations to negotiate in good faith. Find:
- Relevant recent cases or guidance
- What made a clause enforceable despite non-binding language,
where applicable
Step 2: Write a short summary and flag anything in our draft that
resembles a pattern found enforceable despite non-binding intent.
Rules: cite sources. This is informational context, not legal
advice, and should be confirmed with counsel.

Where it works best: Gemini’s web grounding catches recent legal developments on exactly the ambiguity a letter of intent is designed to avoid, which a static knowledge cutoff would not know about.

Best for: Higher-stakes deals where the non-binding intent genuinely needs to hold up if challenged.

4. Comparable Deal Structure Research

You are a research lead benchmarking how comparable
deals in a specific industry are typically structured before a
full agreement.
Step 1: Research how companies similar to ours typically structure
early-stage deal documents for [specific situation, e.g. SaaS
acquisitions, franchise agreements]. Find:
- Publicly discussed norms or commentary
- Common conditions or milestones used before a full agreement
- Reasonable defaults commonly recommended
Step 2: Write a short recommendation for our situation based on
what you find.
Rules: cite sources. Distinguish between a documented norm and a
single opinion piece.

Where it works best: Gemini surfaces practical, real-world commentary that generic legal templates do not capture.

Best for: First-time dealmakers or teams without extensive precedent for this specific type of transaction.

5. Regulatory Approval Timeline Research

You are a research lead checking realistic timelines for
a regulatory condition referenced in a letter of intent.
Step 1: Research typical timelines for [specific regulatory
approval, e.g. antitrust clearance, industry licensing transfer]
relevant to this deal in [jurisdiction]. Find:
- Typical processing times
- Recent examples or reported delays
Step 2: Write a short note recommending a realistic timeline to
reference in the letter's conditions section.
Rules: cite sources. Use a conservative estimate rather than the
fastest possible case.

Where it works best: Gemini’s web grounding produces realistic timeline expectations for a regulatory condition, preventing a letter of intent’s expiration date from being set unrealistically tight.

Best for: Deals where a regulatory approval is a named condition and the timeline genuinely affects deal planning.

6. Counterparty Public Standing Check Before Signing

You are a research lead doing basic public diligence on
a new counterparty before we sign a letter of intent.
Step 1: Research [counterparty company name] using public
information. Find:
- Basic company standing and any public litigation history
- Recent public news relevant to reliability as a counterparty
- Whether they have a public track record of closing deals of
this kind
Step 2: Write a short summary flagging anything worth confirming
before committing to an exclusivity period with them.
Rules: only use publicly available information. Cite sources.
This is a basic public-information check, not a substitute for
formal due diligence.

Where it works best: Gemini can surface basic public-record context quickly, reasonable groundwork before granting a counterparty an exclusivity period that takes you off the market.

Best for: New counterparties, especially before agreeing to any exclusivity that limits your own options.

Try Proposal.biz for free

How To Get More From Each Prompt

Treat The First Reply As A Draft

Ask for a narrower exclusivity clause, push back on vague conditions, or request a plainer explanation of what is actually binding. Each pass sharpens the document before it goes to legal review.

Chain Your Prompts

Once the letter of intent is signed and the deal moves toward a formal relationship, the prompts in AI prompts for Partnership Proposal cover the fuller pitch document that often follows once exclusivity is locked in.

Use the output of one prompt as the input to the next. A jurisdiction-research prompt can inform the exclusivity clause prompt, which feeds the full-draft prompt.

Save What Works

When a letter of intent’s structure clears legal review cleanly and gets signed without much negotiation, keep it as your standard, with a note on why. Over time you build a reviewed template that is faster than drafting from scratch every time.

From Prompt To Branded Document

AI gives you the words. It does not give you a branded document your counterparty receives cleanly, or tell you when they have opened it. That last stretch, formatting, sending, and knowing whether the other side has actually looked at it before your exclusivity clock starts, is usually where the time stacks up.

This is where Proposal.biz fits in.

Paste Your Website URL – Proposal.biz pulls your brand assets into a Smart Content Library, so every document you send after the letter of intent looks like yours automatically.

Generate From A Prompt – Describe the deal and it produces a fully branded document, ready to refine in the Proposal Builder.

Send, Sign And Track – Send a shareable, trackable link instead of a flat PDF, and use built-in e-signing so the letter gets signed and returned inside the same workflow.

If you would rather start from a ready-made structure instead of a blank page, the letter of intent template gives you the standard sections already in place, ready to adapt from any of the prompts above.

The simplest workflow: draft your letter of intent using whichever AI prompt for letter of intent writing fits the scenario, have it reviewed by counsel, then drop the final copy into Proposal.biz to brand, send and track. You keep the AI tool’s drafting speed and add the document layer that gets it signed, then use any AI prompt to write a letter of intent you have saved alongside it.

Final Word

A letter of intent does its job when it says exactly what it needs to and nothing more: the headline terms, a clean exclusivity period, and an unambiguous line between what binds today and what waits for the full agreement. The discipline lives in the sentence most rushed drafts skip, stating plainly which sections are binding and which are not, because that ambiguity is exactly what turns a time-saving document into a dispute.

Proposal.biz makes the document side of what comes next simpler. Paste your website URL and your standard terms populate a Smart Content Library you draw from on the letter of intent and every document that follows it. The Proposal Builder turns your AI draft into a branded document, a shareable link replaces the PDF, and e-signature keeps the whole chain, letter of intent through to signed agreement, inside one workflow.

Once the deal moves from intent to a signed, ongoing relationship, the prompts in AI prompts for Retainer Agreement cover the terms that typically follow once exclusivity ends and the full agreement takes over.

Try Proposal.biz for free

Frequently Asked Questions

What is the best AI prompt for letter of intent writing?

There is no single best prompt, and it depends on the deal. For a first full draft, the ChatGPT prompt for letter of intent building works well. For the binding-versus-non-binding line or a specific clause like exclusivity, the Claude templates handle the precision that matters most. For an unfamiliar jurisdiction or deal category, the Gemini template researches that context first.

Which AI tool is best for writing a letter of intent?

Each model has a different strength. ChatGPT is the most flexible for a first draft and quick reformatting into a term sheet. Claude is best when a specific clause, exclusivity or confidentiality, needs to be exact rather than approximate. Gemini wins when jurisdiction norms or industry practice should shape what the letter covers.

Is a letter of intent legally binding?

It depends entirely on how it is written. A well-drafted letter of intent is explicit that most of the document, the commercial terms, is non-binding, while specific sections like confidentiality and exclusivity are stated to be binding immediately. Leaving this distinction implicit is the most common mistake, and it is why every template in this guide treats it as the single most important sentence in the document.

Can I reuse the same letter of intent prompts across different deal types?

Yes. The structure and the binding/non-binding logic hold across deal types. What changes is the specific commercial terms, the exclusivity period, and any industry-specific conditions. Swap those details and the same 18 templates work for an acquisition, a lease, or a vendor relationship alike.

How do I turn the AI output into a branded, signed document?

AI gives you the words, not a branded document or a way to know whether the counterparty has opened it. Tools like Proposal.biz close that gap: paste your website URL to pull your brand into a Smart Content Library, generate a fully branded document from a prompt, then send a shareable, trackable link and get it e-signed inside the same workflow.