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Bolt.new (StackBlitz)
A
TaglineRun any open-source AI model with an API call.AI research assistant for academic literature.Open-source VS Code agent. Reads + writes + runs.Prompt to deployed full-stack app in the browser.
CategoryDev PlatformResearchCodingCoding
PricingPay per second of computeFree + $12-$42/moFree (open source) + your API costsFree + $20-$200/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Grad students, researchers, anyone doing literature reviews.VS Code users who want agentic coding without changing IDEs.PMs, founders, non-devs shipping MVPs.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Full-stack generation + live preview
  • Deploy to Netlify in one click
  • Works in-browser — no install
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Academic-only
  • Can hallucinate citations — verify everything
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Quality ceiling for complex apps
  • Can get into loops for non-trivial bugs
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for academic research. Nothing else comes close for systematic reviews.A-tier. Best free agentic option in VS Code. Use with Claude for best results.A-tier. Best for fast prototypes. Competitive with Lovable — try both.
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