AI agent profile

Builder.io Fusion

Builder.io's AI visual development agent that works in your existing repository and design system, with Figma-to-code and credit-based plans.

  • Free plan
  • Agentic tool
  • Mixed sources

by Builder.ioAI Coding AgentsAI visual development agent for existing codebases

  • Verified 13 Nov 2026Sources are dated on this profile
  • 2 sourcesLinked, typed and dated
  • Vendor and third-party sourcesHow this profile was compiled
  • Not an endorsementStack18 has not tested this product
Quick answer

What is Builder.io Fusion?

Builder.io Fusion is an AI visual development agent that edits real applications in existing repositories, using a team's components and design system, with Figma-to-code via Visual Copilot. Plans are credit-based, from free to Pro, Team and Enterprise.

  • Best forProduct teams with an existing design system
  • PricingFree tier; Pro from about $19 per user per month; Team and Enterprise. Free plan available.
  • Main limitationCredits limit usage on lower tiers.
  • Alternativesv0 · Lovable · Bolt.new · compare all
Overview

Builder.io Fusion overview: who it is for and what it does.

Unlike prompt-to-app builders that start from scratch, Fusion connects to an existing codebase so designers, product managers and developers can make visual changes that become pull requests using the team's own components.

Pricing is credit-based: a free tier with about 75 credits a month, Pro from about $19 a user with 500 credits, then Team and Enterprise, according to a June 2026 guide.

Main problem it solves

Lets non-developers make visual changes to real apps that land as reviewable code.

Typical customer segment

Product teams and enterprises with existing design systems.

Target users

  • Founders and product managers
  • Non-developers building tools
  • Developers prototyping quickly

Primary use cases

  • Visual edits to existing apps
  • Figma designs to code
  • Design-system-aware UI changes
  • Pull requests from visual edits

What makes it distinct

  • Works in existing repositories.
  • Uses the team's design system and components.
  • Figma to code via Visual Copilot.
Key features

Builder.io Fusion features explained.

Visual development

Visual editing
Edit real apps visually.
Design system
Uses existing components.

Design handoff

Figma to code
Visual Copilot converts designs to code.
Pull requests
Changes delivered as PRs.
Pricing

Builder.io Fusion pricing and plans.

Figures reported consistently by independent sources; vendor page not reviewed directly. Checked 13 Nov 2026 against Builder.io · VP0.

Pricing model

Credit-based subscriptions per user.

Free plan

Yes. A free tier with about 75 credits a month is reported.

Free trial

Not documented.

Builder.io Fusion plans and prices (USD)

  • Free

    Free

    n/a

    About 75 credits a month.

  • Pro

    From $19 per user per month

    Monthly

    500 credits.

  • Team

    Not recorded

    Monthly

    Team features.

  • Enterprise

    Custom

    Custom

    On request.

Figures from a June 2026 pricing guide; confirm on builder.io/pricing.

Prices change. Confirm current plans and terms on the vendor's site before you decide.

Visit official website (external) ↗See alternatives
Integrations and compatibility

Builder.io Fusion integrations, API and platforms.

Important integrations

  • GitHub
  • Figma
  • React and other frameworks
  • Design systems

Supported platforms

  • Web

API

Builder.io has a content API; not reviewed for Fusion.

Data import and export

Not reviewed for this profile.

Integration availability can depend on plan. Confirm with the vendor before you rely on a specific connector.

AI agent details

How Builder.io Fusion works as an AI product.

Attributes are listed only where documented. We do not infer autonomy levels, certifications or model capabilities.

Classification: Agentic tool. A human-directed tool that can plan, edit and run actions, with the user reviewing or approving changes. Developer: Builder.io.

AttributeDetails
Supported modelsNot documented in the sources reviewed.
Tools and integrationsNot documented in the sources reviewed.
Ability to execute actionsMakes visual changes in existing repositories and opens pull requests. [2]
Execution environmentNot documented in the sources reviewed.
Human-in-the-loop controlsNot documented in the sources reviewed.
Permissions and accessNot documented in the sources reviewed.
Memory and contextNot documented in the sources reviewed.
Deployment optionsNot documented in the sources reviewed.
Data handling and privacyNot documented in the sources reviewed.
Security and complianceNot documented in the sources reviewed.
Pricing and usage limitsCredit-based plans. [2]
Languages and platformsNot documented in the sources reviewed.
Limitations and known constraintsNot documented in the sources reviewed.

Primary tasks

  • Generating apps from prompts
  • Iterating on UI and logic in chat
  • Deploying and sharing apps

Best-fit workflows

  • Founders validating an idea
  • Non-developers building internal tools
  • Designers turning concepts into working apps
Strengths, limitations and best fit

Builder.io Fusion pros and cons.

Strengths, limitations and best fit. Each point cites a source; editorial summaries are not customer reviews.

Strengths

  • Works on existing codebases, not only new apps. [2]
  • Figma-to-code with Visual Copilot. [2]
  • Free tier to try. [2]

Limitations

  • Credits limit usage on lower tiers. [2]
  • Team pricing not recorded. [2]
  • Best value requires an existing design system. [2]

Best for

  • Product teams with an existing design system
  • Designers handing off Figma to code
  • Enterprises wanting visual edits as PRs

May be less suited to

  • Greenfield hobby projects
  • Back-end heavy work
How it compares

Builder.io Fusion compared with similar AI coding agents.

Summaries come from each profile. This is a side-by-side aid, not a ranking.

ProductInterfaceModel choiceFree tierPricing modelHuman oversight
Builder.io FusionWeb visual editor connected to your repoNot documented in sources reviewedYes (about 75 credits)Credit-based per userChanges delivered as pull requests
AnythingBrowser-based AI app builder (web and mobile)Not documented in sources reviewedYes (Free plan)Subscriptions (figures not recorded)Not documented in sources reviewed
Base44Browser-based no-code app builderNot documented in sources reviewedYes (25 message credits)Message and integration creditsNot documented in sources reviewed
Bolt.newBrowser-based AI app builderNot documented in sources reviewedYes (1M tokens a month)Subscription with token allowancesNot documented in sources reviewed
DraftbitWeb visual and AI builder for mobileNot documented in sources reviewedYes (10,000 credits)Credit-based subscriptionsVisual editing alongside AI
DyadLocal desktop app builderAny provider or local models (BYOK)Yes (open source)Free; optional Pro subscriptionNot documented in sources reviewed

Browse all AI Coding Agents →

FAQ

Builder.io Fusion questions and answers

What is Builder.io Fusion used for?

Builder.io Fusion is an AI visual development agent that edits real applications in existing repositories, using a team's components and design system, with Figma-to-code via Visual Copilot. Plans are credit-based, from free to Pro, Team and Enterprise.

Is Builder.io Fusion free?

Yes. A free tier with about 75 credits a month is reported.

How much does Builder.io Fusion cost?

Free tier; Pro from about $19 per user per month; Team and Enterprise.

Which models does Builder.io Fusion support?

Not documented in the sources reviewed.

What are the limitations of Builder.io Fusion?

Credits limit usage on lower tiers. Team pricing not recorded. Best value requires an existing design system.

Which platforms does Builder.io Fusion run on?

Builder.io Fusion is documented as available on: Web.

Is Builder.io Fusion an AI agent or an AI assistant?

We classify Builder.io Fusion as: Agentic tool. A human-directed tool that can plan, edit and run actions, with the user reviewing or approving changes. The classification is based on vendor documentation and is not an endorsement.

What are the main alternatives to Builder.io Fusion?

The main alternatives to Builder.io Fusion covered on Stack18 are v0, Lovable, Bolt.new and Cursor. See the Builder.io Fusion alternatives guide for a side-by-side table.

When was the Builder.io Fusion profile last verified?

Sources for this profile were last reviewed on 13 Nov 2026. 2 sources are listed under Sources, and prices and plans can change, so confirm with the vendor.

Sources and freshness

Where this information comes from.

  1. Builder.io pricing Builder.io Official Accessed 13 Nov 2026
  2. Builder.io Pricing Plans 2026 VP0 Third-party Accessed 13 Nov 2026 Listing of Builder.io plans and credits.

Further official pages: Builder.io Fusion pricing (external)

Plans, features and status were checked against Builder.io Fusion's published pages and the third-party sources listed. Agent behaviour was not tested, and security certifications were not independently verified.

Stack18 has not tested this product or received anything from the vendor for this profile. Editorial summaries of vendor information are not endorsements. Confirm details with the vendor before buying.

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