Best form builder
4 models · updated 2026-07-15
The verdict
Tally leads — 3 of 4 models rank Tally the top pick.
Not unanimous: ChatGPT picks Fillout.
As of 2026-07-15, ChatGPT, Claude, Gemini and Grok collectively rank Tally #1 for form builder on ModelsAgree by aggregate score. The models' case: Notion-style builder that startups actually enjoy using, the most generous free tier in the category (unlimited forms and responses), clean embeds, webhooks and API. The models' main caveat: Deeper native integration ecosystem and more advanced logic/calculation features to fully displace enterprise incumbents. The strongest alternative is Formbricks — Open-source/self-hostable with headless API, modular architecture for full customization/extension, strong for in-app surveys/feedback loops. Not unanimous: ChatGPT picks Fillout. Source: https://modelsagree.com/best/best-form-builder-for-developers (modelsagree.com, CC BY 4.0).
Combined ranking
- 1GPT #2Claude #1Gemini #1Grok #1
Notion-style builder that startups actually enjoy using, the most generous free tier in the category (unlimited forms and responses), clean embeds, webhooks and API access, and pricing that doesn't punish growth
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Claude Notion-style builder that startups actually enjoy using, the most generous free tier in the category (unlimited forms and responses), clean embeds, webhooks and API access, and pricing that doesn't punish growth
Gemini Notion-like interface, extremely generous free tier with unlimited forms and responses, and simple webhook integration.
Grok Unlimited forms/submissions on free plan with Notion-like block editor for rapid iteration, strong conditional logic/calculations/payments, clean embeds and developer-friendly API/webhooks for startups building fast without bloat; excellent real-world value and speed for typical practitioner needs.
GPT Exceptional startup value with unlimited forms and submissions under fair use, a fast Notion-like editor, logic, calculations, payments, file uploads, embeds, API access, and free webhooks
Where it falls shortper GPT Expand its API into a fuller platform for programmatic form creation and management
per Claude Deeper native integration ecosystem and more advanced logic/calculation features to fully displace enterprise incumbents
per Gemini Offer native React/Vue SDKs for headless rendering instead of relying solely on iframe embeds.
per Grok Less suited for highly complex enterprise workflows or pixel-perfect custom UI beyond basic theming (not for heavy branding or self-hosted data control).
- 2GPT #3Claude #4Gemini #3Grok #2
Open-source/self-hostable with headless API, modular architecture for full customization/extension, strong for in-app surveys/feedback loops integrated into products; delivers data ownership and dev flexibility at zero/low cost ideal for privacy-conscious startups.
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Grok Open-source/self-hostable with headless API, modular architecture for full customization/extension, strong for in-app surveys/feedback loops integrated into products; delivers data ownership and dev flexibility at zero/low cost ideal for privacy-conscious startups.
GPT Best developer-controlled choice thanks to open-source code, self-hosting, full API access, strong privacy, in-app surveys, granular user targeting, and link surveys
Gemini Open-source self-hosting option, GDPR privacy compliance, and native SDKs to trigger targeted in-app surveys based on user actions.
Claude The leading open-source option — self-hostable for data-sovereignty and compliance needs, developer-first SDKs for in-app surveys and forms, GDPR-friendly EU hosting, and no vendor lock-in
Where it falls shortper GPT Broaden beyond feedback and surveys with richer transactional forms, payments, and workflow features
per Claude Close the gap on drag-and-drop builder polish and template depth so non-technical teammates can use it without engineering help
per Gemini Expand styling customizability within the cloud dashboard.
per Grok Steeper setup for non-technical users and potentially less polished out-of-box templates compared to SaaS giants (not for teams wanting instant no-setup enterprise polish).
- 3GPT #1Claude #2Gemini #4Grok —
Best overall balance of polished UX, powerful conditional logic, payments, scheduling, flexible layouts, generous free limits, database integrations, API access, and unusually capable REST webhooks
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GPT Best overall balance of polished UX, powerful conditional logic, payments, scheduling, flexible layouts, generous free limits, database integrations, API access, and unusually capable REST webhooks
Claude Best power-to-price ratio right now — advanced conditional logic, payments, scheduling, native Notion/Airtable/HubSpot storage so data lands where teams already work, plus a solid API and generous free plan
Gemini Unmatched native integrations with databases and platforms like Airtable/Notion to dynamically pull and update live data.
Where it falls shortper GPT Add a self-hosted or open-source deployment option
per Claude Stronger brand recognition and a more polished respondent-side design language to match Typeform's front-end feel
per Gemini Provide complete headless API support to allow custom frontend form interfaces.
- 4GPT #4Claude —Gemini #2Grok #3
Headless capability with native React SDK, pixel-perfect design control, and advanced logic engines for complex multi-step onboarding.
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Gemini Headless capability with native React SDK, pixel-perfect design control, and advanced logic engines for complex multi-step onboarding.
Grok Advanced low-code customization with strong SDKs/APIs, complex branching logic and workflows tailored for product teams/startups needing branded, scalable forms deeply integrated into apps; balances dev control with usability.
GPT Excels at highly customized, product-like forms with developer SDKs, advanced logic, reusable components, integrations, and complex onboarding or qualification flows
Where it falls shortper GPT Make pricing and implementation substantially simpler for small startups
per Gemini Lower the high pricing entry barrier and simplify the visual editor learning curve.
per Grok Higher pricing for advanced features and more focused on specific verticals like finance/healthcare rather than general-purpose simplicity (not for budget-zero or ultra-basic use).
- 5GPT #5Claude #3Gemini —Grok —
Still the gold standard for conversational, high-converting form UX, mature API and webhook platform, huge integration catalog, and the brand trust that makes it safe for customer-facing use
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Claude Still the gold standard for conversational, high-converting form UX, mature API and webhook platform, huge integration catalog, and the brand trust that makes it safe for customer-facing use
GPT Still delivers the most polished conversational form experience, backed by mature Create and Responses APIs, webhooks, OAuth, a capable Embed SDK, strong templates, and broad integrations
Where it falls shortper GPT Raise response allowances dramatically without forcing costly plan upgrades
per Claude Pricing — response caps on lower tiers are punishing for startups, and cheaper plans would stop the exodus to Tally and Fillout
- 6GPT —Claude —Gemini —Grok #4
Robust open-source/commercial platform with powerful API-first backend, data management, and self-hosting options; excels for developers needing complex forms tied to databases/workflows in startup product builds.
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Grok Robust open-source/commercial platform with powerful API-first backend, data management, and self-hosting options; excels for developers needing complex forms tied to databases/workflows in startup product builds.
Where it falls shortper Grok Can feel heavier/more engineering-oriented than lightweight builders, with UI less intuitive for quick non-dev edits (not for marketing teams or non-technical form creators).
- 7GPT —Claude —Gemini —Grok #5
Lightweight form endpoint backend with visual builder, strong spam filtering/validation, no JS bloat—perfect for devs embedding custom HTML/CSS forms in existing sites/apps with minimal overhead and reliable submissions for startups.
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Grok Lightweight form endpoint backend with visual builder, strong spam filtering/validation, no JS bloat—perfect for devs embedding custom HTML/CSS forms in existing sites/apps with minimal overhead and reliable submissions for startups.
Where it falls shortper Grok Primarily backend-focused so limited native advanced UI/logic compared to full builders (not for teams wanting comprehensive no-code design or surveys).
- 8GPT —Claude —Gemini #5Grok —
Simple, headless backend endpoint that lets developers code forms from scratch in raw HTML/CSS without visual builder bloat.
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Gemini Simple, headless backend endpoint that lets developers code forms from scratch in raw HTML/CSS without visual builder bloat.
Where it falls shortper Gemini Increase the restrictive 50-submission monthly free tier and lower starter pricing.
- 9GPT —Claude #5Gemini —Grok —
Unmatched feature breadth — 10,000+ templates, HIPAA compliance, e-signatures, approval workflows, PDF generation — making it the pragmatic pick when a startup needs regulated or complex form workflows fast
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Claude Unmatched feature breadth — 10,000+ templates, HIPAA compliance, e-signatures, approval workflows, PDF generation — making it the pragmatic pick when a startup needs regulated or complex form workflows fast
Where it falls shortper Claude Modernize the dated form aesthetics and simplify the cluttered builder UI, which feels a generation behind Tally and Fillout
Rank history
Just missed the top 5
GPT Jotform — enormous feature and template breadth, but its interface and product sprawl feel heavier and less developer-focused · Formspree — excellent form backend for custom-coded sites, but it is not a complete visual form-building platform
Claude Formspree — excellent developer form backend for static sites, but it's an endpoint service rather than a full builder, so its scope is too narrow for the category · SurveyJS — powerful open-source form rendering libraries with full UI control, but it's a component toolkit that requires you to build and host everything yourself, not an online builder
Gemini Typeform — Prohibitively expensive for early-stage startups and lacks developer-centric integrations like custom React SDKs or self-hosting · Basin — Excellent lightweight endpoint tool but lacks advanced multi-step logic and database syncing features
Grok Jotform — powerful templates/scale but ranks lower for pure dev/startup flexibility vs. lighter/more API-centric options
By model
ChatGPT
- 1.Fillout
- 2.Tally
- 3.Formbricks
- 4.Feathery
- 5.Typeform
Claude
- 1.Tally
- 2.Fillout
- 3.Typeform
- 4.Formbricks
- 5.Jotform
Gemini
- 1.Tally
- 2.Feathery
- 3.Formbricks
- 4.Fillout
- 5.Formspree
Grok
- 1.Tally
- 2.Formbricks
- 3.Feathery
- 4.form.io
- 5.FormKeep
Common questions
What is the best form builder according to AI models?
Tally leads. 3 of 4 models rank Tally the top pick. The current top 3: Tally, Formbricks, Fillout. Ranked by asking ChatGPT, Claude, Gemini, Grok the same buying question and merging their top-5 picks, updated 2026-07-15. Source: modelsagree.com.
Which form builder did each AI model pick first?
ChatGPT: Fillout. Claude: Tally. Gemini: Tally. Grok: Tally.
Do the AI models agree on the best form builder?
Not unanimous. ChatGPT picks Fillout.
What changed in the latest form builder ranking?
In the latest poll (2026-07-15): Tally climbed 1 spot, Formbricks climbed 1 spot; Fillout dropped 2 spots; form.io and FormKeep entered the ranking. The models are re-polled on demand, so this ranking moves.
How is this form builder ranking made?
ChatGPT, Claude, Gemini, Grok are each asked the same buying question in a fresh session with no system steering. Their top-5 answers are merged (rank 1 = 5 pts … rank 5 = 1 pt) into the consensus ranking, re-polled on demand and tracked over time.
More on how polling works: full methodology →
Cite this ranking
ModelsAgree, “Best form builder” — merged ranking from ChatGPT, Claude, Gemini & Grok, polled 2026-07-15. https://modelsagree.com/best/best-form-builder-for-developers (CC BY 4.0)
Tracked by ModelsAgree · rank 1 = 5 pts … rank 5 = 1 pt · re-polled on demand