Software advice
Best AI Proposal Software in 2026
AI proposal software is a family of web products that help a business draft, send and track the documents used to win work: sales proposals, quotes, RFP responses and security questionnaires. The AI part drafts answers from stored company content or fills templates. It is not a law firm or a bid consultant, and a person still approves what is sent.
Quick answer
Arphie ranks first for teams answering RFPs from a connected knowledge base. Better Proposals is the pick for small agencies that want a posted per-user price, and PandaDoc suits teams that need quoting and e-signature in one account.
Buyers of AI proposal software are really choosing between two jobs. One is the outbound sales proposal: a branded web page or document with pricing, a signature and view tracking. The other is the inbound RFP or questionnaire, where hundreds of questions arrive in a spreadsheet and the work is finding the right approved answer. Tools in the first group are mostly priced per user and posted online. Tools in the second group are priced by quote. This ranking judges how clearly each vendor explains what its AI does, whether a price is public, what the vendor says about training on customer content, and how hard it is to leave. Vendor sites were read on 28 October 2026.
The 11 best AI proposal software in 2026, ranked
There is no score. Vendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. How we rank.
| # | Tool | Best for | Free plan | Entry price |
|---|---|---|---|---|
| 1 | Arphie | Sales engineering and proposal teams answering RFPs and security questionnaires from connected company documents | No | Quoted |
| 2 | Inventive AI | Bid and security teams that want cited, grounded RFP answers and portal answering for procurement systems | No | Quoted |
| 3 | Better Proposals | Small agencies and consultants who want interactive proposals, signatures and payments at a low posted price | Trial | $13 per user per month |
| 4 | Qwilr | Sales teams that send proposals and quotes as web pages and want CRM sync plus buyer analytics | Trial | $35 per user per month |
| 5 | AutogenAI | Bid teams in government contracting, enterprises and grant writing wanting a custom language engine for long narrative responses | No | Quoted |
| 6 | Proposify | Sales teams that want approval workflows, a content library and AI in a drag-and-drop proposal editor | Trial | $39 per user per month |
| 7 | Bidsketch | Freelance designers, developers and small agencies who want templates and client landing pages cheaply | Trial | $29 per month |
| 8 | Loopio | Established proposal teams that want an approved answer library across RFPs, DDQs and security questionnaires | No | Quoted |
| 9 | Responsive | Larger organizations with weekly RFP volume, legal and security review, and multi-team access controls | No | From $10,000 per year |
| 10 | PandaDoc | Sales operations teams that need quotes, approvals, CRM sync and e-signature in one governed workflow | No | $19 per seat per month |
| 11 | Nusii | Freelancers and small agencies that want a plain proposal builder with e-signing and a flat price | Trial | $29 per month for the Freelancer plan |
- 1
Arphie takes first place because its pages are specific about the risky parts: every AI answer shows its sources and a confidence level, and the vendor states that customer data is not used to train models. It connects live to Google Drive, SharePoint, Confluence, Notion, Seismic and Highspot. The trade-off is that there is no public price, so cost is found only through a sales conversation.
Strong on
- Answers show their sources and confidence scores, so reviewers can check a draft quickly
- States that customer data is not used to train models, with SOC 2 Type 2 and zero data retention terms
- Live connections to document stores avoid maintaining a separate answer library by hand
Weak on
- No price or plan table appeared on the pages read, so budgeting needs a demo
- Built around RFP and questionnaire answering, not branded outbound proposal pages
Skip it if: Freelancers who send a few branded offers a month and want a posted per-user price and self-serve sign-up. No price appeared on the pages read; contact and demo routes are offered instead.
- 2
Inventive AI ranks second because it describes a concrete design: answers are grounded in approved content and gaps are flagged rather than guessed. It also fills in procurement portals such as Coupa, Ariba and Jaggaer and offers an MCP connection to AI assistants. The numbers on its homepage, such as 95% accuracy and 50% higher win rates, are the vendor's own claims, and its pricing page did not load.
Strong on
- Says missing information is flagged and never guessed, with cited answers from approved content
- Answers questions inside Coupa, Ariba and Jaggaer portals, which many RFP tools skip
- Lists SOC 2 Type II and zero data retention agreements with model providers
Weak on
- Accuracy and win rate figures on the homepage are vendor claims without a named study
- No public price, and the pricing page was unavailable when checked
Skip it if: Buyers who need a published monthly price per user or a free plan to start with this week. The pricing page returned a not-found message; the homepage routes buyers to a demo.
- 3
Better Proposals
Better Proposals sits third because the posted ladder is the clearest in the category: Starter at $13, Premium at $21 and Enterprise at $42 per user per month. Signatures, payments, a content library and open tracking come on every tier. CRM integrations, API and an MCP server start at Premium. The AI side is thin compared with RFP platforms, and the top Elite tier is invoiced separately.
Strong on
- Legally binding signatures, payments and a content library are included on every plan
- Notifications show which sections a client read, in what order and for how long
- Premium adds API, Zapier and an MCP server for connecting AI assistants
Weak on
- Content locking, approvals and simultaneous editing wait until the Enterprise tier
- Focused on outbound proposals; it does not answer buyer RFP questionnaires
Skip it if: Proposal managers who must answer long RFP spreadsheets from an approved answer library with source citations. Starter tier on the pricing page; annual billing saves up to 35 percent; the 14-day trial needs no card.
- 4
Qwilr
Qwilr ranks fourth because the page-first format and the rule engine are well documented, including a Smart Proposal Engine and AI prefill on its Scale tier. Pages are unlimited on every plan, and an MCP connection and API are listed. The cost is the seat minimums: Growth starts at five users and Scale at ten, which prices out very small teams.
Strong on
- Unlimited pages on every plan, with e-sign, QwilrPay and analytics on the entry tier
- Smart Proposal Engine builds proposals from rules, with conditional content on Scale
- Integrations listed for HubSpot, Salesforce, Pipedrive, Zoho, Dynamics and Stripe
Weak on
- Growth and Scale require five and ten users and annual billing, shutting out solo sellers
- API access carries usage costs on every plan, which the pricing page does not quantify
Skip it if: A solo consultant who needs the rule engine or Salesforce sync but cannot meet a ten-user minimum. Starter on annual billing; Growth needs five users and Scale ten, both annual only.
- 5
AutogenAI
AutogenAI lands fifth because its focus is long-form bid writing, from qualification to review, with separate Federal, Enterprise and Grant Writer offerings. It describes a custom language engine in each customer's tone of voice and a FedRAMP High authorization for the federal edition. Its headline gains, such as 241% higher success rates, are vendor-reported, and no price is published.
Strong on
- Separate federal, enterprise and grant editions, with FedRAMP High stated for the federal one
- Covers the full bid flow: qualify, extract requirements, write, research and review
- Builds a custom language engine matched to a company's tone of voice
Weak on
- Percentage gains on the homepage come from the vendor and name no study
- No public price or self-serve trial; every buyer goes through a demo
Skip it if: Small agencies that need a quick, low-cost proposal template with a signature and a monthly plan. No price appeared on the pages read; access is by demo only.
- 6
Proposify
Proposify ranks sixth because it is capable but costs more as it grows: Build at $39 per user per month annually, Grow at $65 with approvals and API, and Scale at $107 with a $12,800 yearly platform fee. Build already includes AI and an MCP server. Sends are metered per month, and added design or onboarding is billed separately, so the first-year bill can exceed the sticker price.
Strong on
- Build includes unlimited documents and signatures, a content library, AI and an MCP server
- Grow adds roles, approval workflows and API access for tighter control
- A 14-day trial starts without a payment card required
Weak on
- Each plan has a monthly send limit with overage fees per send
- Custom template design is $1,500 and the Grow launch kit is $2,000
Skip it if: Freelancers who send occasional offers and want the lowest flat monthly price with no send metering. Build tier on annual billing ($49 monthly); custom template design costs $1,500 extra.
- 7
Bidsketch
Bidsketch ranks seventh because it is the simplest tool here: Solo at $29 per month and Team at $79 for up to three users, with unlimited proposals and clients. It offers templates, optional fees for upselling and approval messages. No AI feature appeared on the pages read, which is why it sits below the AI-led products, but it stays honest and inexpensive for small agencies.
Strong on
- Flat posted prices: Solo $29 and Team $79 for up to three users, unlimited proposals
- Optional pricing items and approval messages support upsells and next steps
- Free for non-profits, according to the pricing page
Weak on
- No AI drafting feature appeared on the pages read
- Describes its fit as design, development, marketing and similar agencies, not enterprise teams
Skip it if: Teams that want AI drafting, CRM sync, approval chains or RFP answer libraries. Solo plan for one user; a cheaper $15 starter plan has no e-signature or custom domain.
- 8
Loopio ranks eighth: it is a mature library-and-workflow product with Response Intelligence, content connectors to SharePoint and Google Drive, and portal auto-fill, plus an MCP connection to Claude and ChatGPT. Security details are clear, with SOC 2 Type II and AES-256. The homepage is silent on whether customer data trains models, and the price is by quote only.
Strong on
- Content connectors pull answers from SharePoint, Google Drive, Confluence and websites
- SOC 2 Type II, TLS 1.2 in transit and AES-256 at rest are stated
- Integrates with Salesforce, HubSpot, Seismic, Highspot, Slack and Microsoft Teams
Weak on
- The homepage does not say whether customer data is used to train AI models
- Pricing is by sales quote, starting with a 10-seat Foundations tier
Skip it if: Teams under ten users who want to start small, self-serve and pay a posted monthly price. No dollar amount is listed; the page mentions a Foundations tier of 10 seats and custom quotes.
- 9
Responsive ranks ninth because the entry cost is steep and, apart from the $10,000 Emerging starting platform fee, the pricing page leaves user licenses and add-ons unstated. It does publish a clear edition ladder and a long compliance list: SOC 2, ISO 27001, ISO 27701 and ISO 42001. Unlimited response projects without per-RFP fees help high-volume teams, but small teams will not recover the platform fee.
Strong on
- Unlimited response projects and no incremental cost per RFP across editions
- Compliance list includes SOC 2, ISO 27001, ISO 27701, ISO 42001 and GDPR
- Enterprise edition adds flexible custom AI, advanced reporting and premium connectors
Weak on
- User license prices, add-on prices and contract length are not on the pricing page
- The $10,000 starting platform fee puts it out of reach for low-volume teams
Skip it if: Small teams answering a handful of RFPs a year who need a low monthly cost. Emerging edition platform fee only; user licenses, add-ons and the Growth and Enterprise prices are not listed.
- 10
PandaDoc
PandaDoc is placed tenth only because it is the biggest brand here and the AI emphasis is lighter than at the specialists. As of October 2026 its pricing page lists Starter at $19 and Business at $49 per seat per month on annual billing, with API access from Starter and CRM integrations, deal rooms and approvals on Business. Its monthly rates were not confirmed on the vendor page.
Strong on
- Starter includes unlimited uploads and e-signatures, a drag-and-drop editor and API access
- Business adds custom quotes, CRM integrations, deal rooms, approval workflows and bulk send
- Seats are charged only for internal users, not for external signers
Weak on
- Monthly-billing prices were not confirmed on the vendor page, only the annual rates
- Enterprise pricing is per seat or per document and set by a sales conversation
Skip it if: Teams whose main workload is long RFP questionnaires answered from an approved library. Starter on annual billing; Business is $49 per seat, Enterprise is quoted by sales.
- 11
Nusii
Nusii ranks eleventh because it stays small on purpose. Three posted plans run from $29 to $129 a month, each with a 14-day trial, and an AI assistant can draft a proposal from call notes through a connected chat assistant. It has no answer library for long questionnaires and no deep deal-room tooling, so it fits a founder sending a few quotes a week rather than a bid team.
Strong on
- Three flat monthly plans are posted openly, each with a free 14-day trial
- Proposals can be drafted from call notes through a connected AI assistant, drafts only
- Online e-signing, templates and email from your own domain are on every plan
Weak on
- Active proposal counts are capped at 5, 20 and 50 plus by plan
- No library of past answers for security questionnaires or tenders
Skip it if: Bid teams answering long RFPs from an approved answer library, or enterprises needing approval chains. Freelancer is one user and 5 active proposals; Agency is $49 and Business $129 monthly.
How these AI proposal software were judged
How good is the AI at writing proposals and RFP answers?
No vendor page read for this ranking publishes an independent accuracy test, so quality is judged by design. Arphie and Inventive AI both say answers are shown with their sources, and Arphie adds confidence scores, which lets a reviewer check a draft in seconds. Inventive AI says missing information is flagged rather than guessed, though its 95% accuracy figure is the vendor's own claim. Loopio and Responsive describe drafting from an approved library. The outbound tools are lighter, mostly filling templates and prompts. Before buying, load ten past questionnaires into a trial, and count answers you would not send as written.
How much does AI proposal software cost?
Prices split sharply by category, as of October 2026. Bidsketch lists Solo at $29 per month, Better Proposals starts at $13 per user per month, Qwilr at $35 per user per month on annual billing, and PandaDoc at $19 per seat per month for Starter on annual billing. Proposify starts at $39 per user per month annually. RFP platforms are different: Responsive shows Emerging from $10,000 as an annual platform fee, while Loopio, Arphie, Inventive AI and AutogenAI quote by demo. Ask each vendor for the full first-year figure, including user licenses, onboarding and AI add-ons.
Is my company content used to train the vendor's AI?
The answer sits on each vendor's trust page, and it differs. Arphie says it does not train models on customer data and cites zero data retention agreements with model providers plus a SOC 2 Type 2 audit. Inventive AI states SOC 2 Type II and the same retention terms with OpenAI and Anthropic. Responsive lists SOC 2, ISO 27001 and ISO 42001. Loopio states SOC 2 Type II, TLS 1.2 and AES-256 but its homepage does not say whether customer data trains models. For the others, the vendor's policy was not checked in depth, so ask in writing.
How hard is it to switch proposal software later?
Lock-in is lowest for page-based senders and highest for answer libraries. A Qwilr or Better Proposals template can be rebuilt in an afternoon, but signed documents and analytics history sit with the vendor, so export them before cancelling. Library tools such as Loopio and Responsive hold years of curated answers, and moving them means mapping fields and cleaning duplicates. Arphie says migration usually takes under a week, which is a vendor claim worth testing with your own export. Annual contracts matter as well: Qwilr's Growth and Scale tiers are annual only, and Proposify's Grow tier is billed annually.
Which proposal tool fits my team size and sales motion?
Match the tool to the document you send most often. A freelancer sending five offers a month is served by Bidsketch or Better Proposals. A sales team with a CRM wants Qwilr or Proposify for sync and view alerts. A revenue operations team that needs approvals and a product catalog belongs on PandaDoc. A company answering enterprise RFPs weekly should compare Arphie, Inventive AI, AutogenAI, Loopio and Responsive on the same sample project. Proposal volume, not company size, is the better guide: weekly questionnaires justify a library, monthly quotes rarely do.
How to choose an AI proposal software in three steps
- Count the documents you send each month. Split your last quarter into outbound proposals and inbound questionnaires. If most are quotes and offers you write yourself, shortlist the page-based tools, which cost tens of dollars per user. If most are RFPs with fifty or more questions, shortlist the answer platforms, which are priced by quote and often by annual platform fee. A mixed workload usually needs one tool of each kind rather than a compromise. Write the counts down before any sales call, because vendors will otherwise anchor on their largest plan.
- Test with your own past documents. Take three proposals you won and three you lost, or one real questionnaire, and run them through each trial. Judge the first draft on factual errors, missing sources and how much rewriting a person still does. For RFP tools, check that every generated answer shows where it came from and that missing information is flagged, not filled in. Keep a simple tally of answers sent as written, edited, or rejected. Vendor demos use clean sample content, so the results from your own files are the only fair comparison.
- Read the data and exit terms before signing. Ask each vendor three written questions: is customer content used to train any model, where is it hosted, and what can be exported if you leave. Compare the replies with the trust page. Check minimum seat counts and annual-only billing, since some tiers start at five or ten users. Ask what happens to signed documents and view analytics at cancellation. A vendor that answers plainly and quickly on these points is usually easier to work with after the contract starts.
Frequently asked questions
What is the best AI proposal software in 2026?
For RFP and questionnaire work, Arphie ranks first here because it shows sources and confidence for each answer and states a no-training policy. For outbound sales proposals, Better Proposals ranks highest on posted price and simplicity. The order is based on vendor pages read on 28 October 2026.
What is the difference between proposal software and RFP software?
Proposal software builds the offer you send out: a branded page or document with pricing, comments and a signature. RFP software answers requests that arrive from a buyer, usually a long questionnaire, by drafting responses from stored company content. Loopio and Responsive sit in the second group, Qwilr and Proposify in the first, and PandaDoc mainly in the first.
Which AI proposal tools have a free trial?
Better Proposals states a 14-day trial with no credit card, Qwilr offers a 14-day free trial, Bidsketch has a 14-day trial, and Proposify lists a free sign-up with a 14-day trial on its Build plan. The RFP platforms here, including Arphie, Loopio, Responsive and Inventive AI, direct buyers to a demo instead of self-serve sign-up.
Does AI proposal software train on my confidential documents?
It depends on the vendor, and the answer should be in writing. Arphie states it does not use customer data to train models, and Inventive AI cites zero data retention agreements with model providers. Loopio lists its certifications but its homepage is silent on training. Ask for the data processing terms before uploading real pricing, customer names or security documents.
How much does proposal software cost per user?
As of October 2026 the posted entry prices range from $13 per user per month at Better Proposals to $35 at Qwilr and $39 at Proposify on annual billing. Bidsketch charges $29 per month for one user. RFP platforms charge a platform fee instead: Responsive lists $10,000 as the starting figure, and others quote privately.
Can AI write a full proposal without human review?
It can produce a first draft, but no vendor read for this ranking claims review is unnecessary. Inventive AI says missing information is flagged, and Arphie shows answer sources, both of which exist so that a person can approve quickly. Pricing, scope and legal terms in particular should be checked by someone accountable before a proposal goes to a client.
Do these tools connect to a CRM?
Most do on some plan. Qwilr lists HubSpot, Zoho and Pipedrive on Starter and Salesforce on Scale, Better Proposals adds CRM integrations on Premium, and Proposify lists integrations and automations on Build. Loopio names Salesforce, HubSpot and Microsoft Dynamics 365. Check which tier unlocks your CRM before choosing, since it is often the second plan up.
Is e-signature included in proposal software?
In most of these products, yes. Better Proposals includes legally binding digital signatures from its Starter plan, Qwilr lists e-sign on Starter, Proposify includes unlimited documents and signatures on Build, and Bidsketch includes electronic signatures on Solo. Bidsketch's cheaper starter plan omits them. RFP platforms generally do not focus on signature, though Responsive lists eSignature on its Growth edition.