{"slug":"bolt-new","name":"Bolt.new","domain":"bolt.new","verdict":"As of 2026-07-15, ChatGPT, Claude, Gemini, Grok collectively rank Bolt.new #2 of 6 for ai app builder (one of 2 leaderboards it appears on). Source: https://modelsagree.com/product/bolt-new (modelsagree.com, CC BY 4.0).","best_rank":2,"categories":2,"brief":{"category":"best-ai-app-builder","title":"Best AI app builder","rank":2,"of":6,"top":"Lovable","day":"2026-07-17","why":[{"t":"Fast in-browser full-stack development","m":["Gemini","Grok","ChatGPT","Claude"],"q":"Fastest in-browser full-stack builder thanks to StackBlitz WebContainers"},{"t":"Direct code and terminal control","m":["Gemini","Grok","ChatGPT"],"q":"giving users direct access to a virtual terminal and package managers without any local configuration"},{"t":"Broad framework and mobile support","m":["ChatGPT","Claude"],"q":"broad framework support beyond React (incl. Expo for mobile)"},{"t":"Strong hosting and service integrations","m":["ChatGPT","Claude"],"q":"Netlify/Supabase/Stripe integrations"}],"gap":[{"t":"Native automated database provisioning","m":["ChatGPT","Claude","Gemini","Grok"],"q":"built-in Supabase auth/database/storage"},{"t":"Strong visual editing","m":["ChatGPT","Claude","Grok"],"q":"strong visual editing and iteration loop"},{"t":"Bidirectional GitHub sync","m":["ChatGPT","Gemini"],"q":"bidirectional GitHub sync"}],"fix":[{"t":"Support non-JavaScript stacks","m":["ChatGPT","Grok"],"q":"Its JavaScript/Node-only backend constraint"},{"t":"Improve large-codebase stability","m":["ChatGPT","Claude","Gemini"],"q":"Performance and stability degrade significantly on large codebases"},{"t":"Reduce token-heavy iteration costs","m":["ChatGPT","Claude"],"q":"Token-based pricing punishes iteration"}]},"entries":[{"slug":"best-ai-app-builder","title":"Best AI app builder","rank":2,"of":6,"score":14,"appearances":4,"modelRanks":{"ChatGPT":3,"Claude":3,"Gemini":2,"Grok":2},"reason":"Runs a complete, full-stack Node.js development environment entirely in the browser using WebContainers, giving users direct access to a virtual terminal and package managers without any local configuration. It is a near-tie with Lovable, but placed second due to a lack of native, automated database provisioning.","reasons":[{"model":"Gemini","reason":"Runs a complete, full-stack Node.js development environment entirely in the browser using WebContainers, giving users direct access to a virtual terminal and package managers without any local configuration. It is a near-tie with Lovable, but placed second due to a lack of native, automated database provisioning."},{"model":"Grok","reason":"Extremely fast in-browser prompt-to-working React/full-stack prototype with strong iteration and code control; minimal setup, great for developers and quick demos."},{"model":"ChatGPT","reason":"Excellent prompt-to-working-app speed with an unusually transparent browser-based development environment, editable code, integrated hosting/database/auth, Supabase support, and credible Expo mobile generation."},{"model":"Claude","reason":"Fastest in-browser full-stack builder thanks to StackBlitz WebContainers — instant preview with no VM spin-up, broad framework support beyond React (incl. Expo for mobile), Netlify/Supabase/Stripe integrations, and an open-source core (bolt.diy) that lets self-hosters run it with any model."}],"fixes":[{"model":"ChatGPT","fix":"Its JavaScript/Node-only backend constraint and token-heavy debugging make it a poor fit for non-JS stacks or long, complex builds."},{"model":"Claude","fix":"Token-based pricing punishes iteration (large apps chew through tokens on every edit) and it degrades on bigger codebases where context limits cause regressions — better for green-field spikes than sustained products."},{"model":"Gemini","fix":"Performance and stability degrade significantly on large codebases due to browser-level memory and runtime limitations."},{"model":"Grok","fix":"Less polished full backend/DB depth out-of-box compared to dedicated full-stack tools (not for non-devs needing zero-code long-term maintenance)."}],"updated":"2026-07-15","rank_history":{"days":["2026-07-12","2026-07-13","2026-07-14","2026-07-15"],"ranks":[2,2,3,3]},"reasoning_shift":[{"model":"Gemini","from":"2026-07-14","to":"2026-07-15","added":[{"t":"package managers without local configuration","q":"package managers without any local configuration"}],"dropped":[{"t":"rapid prompt-to-preview iterations","q":"rapid prompt-to-preview iterations"},{"t":"direct code editing","q":"direct code editing"}]},{"model":"Claude","from":"2026-07-14","to":"2026-07-15","added":[{"t":"open-source core for self-hosters","q":"an open-source core (bolt.diy) that lets self-hosters run it with any model"},{"t":"context limits cause regressions","q":"context limits cause regressions"},{"t":"green-field spikes","q":"better for green-field spikes than sustained products"}],"dropped":[{"t":"near-tie with Replit Agent","q":"near-tie with Replit Agent"},{"t":"agent regenerates aggressively","q":"the agent regenerates aggressively"},{"t":"backend stitched from third parties","q":"backend/infra is stitched from third parties rather than built in"}]}],"api":"https://modelsagree.com/api/v1/best/best-ai-app-builder.json"},{"slug":"best-ai-ui-generation-tool","title":"Best AI UI generation tool","rank":4,"of":11,"score":5,"appearances":2,"modelRanks":{"ChatGPT":5,"Gemini":2},"reason":"Uses StackBlitz WebContainers to run a full Node.js environment in the browser, allowing developers to generate, preview, and deploy multi-file full-stack apps with direct access to a virtual IDE and terminal.","reasons":[{"model":"Gemini","reason":"Uses StackBlitz WebContainers to run a full Node.js environment in the browser, allowing developers to generate, preview, and deploy multi-file full-stack apps with direct access to a virtual IDE and terminal."},{"model":"ChatGPT","reason":"A strong all-in-one choice when screens must become working software quickly: it accepts prompts and Figma frames, can generate with a team’s real design-system components, exposes the complete codebase, runs it immediately in-browser, and supports GitHub and deployment workflows."}],"fixes":[{"model":"ChatGPT","fix":"On larger iterative projects, token consumption and agent-driven code churn can make quality and cost less predictable than the more UI-focused leaders."},{"model":"Gemini","fix":"Highly code-centric interface is less accessible to non-developers, and browser-based containers suffer from startup latency and limited resource limits for complex projects."}],"updated":"2026-07-15","rank_history":{"days":["2026-07-13","2026-07-15"],"ranks":[4,null]},"api":"https://modelsagree.com/api/v1/best/best-ai-ui-generation-tool.json"}],"page":"https://modelsagree.com/product/bolt-new","check":"https://modelsagree.com/check?q=Bolt.new","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}