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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
Pick tools (4 selected)
Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
OpenRouter
S
Flux (Black Forest Labs)
A
GitHub Copilot
B
Elicit
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Open weights + strong photorealism. The open-source answer.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.AI research assistant for academic literature.
CategoryDev PlatformImageCodingResearch
PricingPay per token — model-dependentAPI + open weights (Schnell is Apache 2.0)Free (limited) + $10/mo Pro + $19/mo BusinessFree + $12-$42/mo
Best forDevelopers experimenting across models. Apps that want fallback logic.Developers + power users who want control and privacy.Teams with GitHub already. Devs who don't want to change IDEs.Grad students, researchers, anyone doing literature reviews.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Searches 125M+ papers
  • Extracts + synthesizes findings across papers
  • Systematic review workflow
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Harder to use than hosted tools
  • Needs infra
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Academic-only
  • Can hallucinate citations — verify everything
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier. S-tier if you self-host. The reason open-source image gen matters.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.S-tier for academic research. Nothing else comes close for systematic reviews.
LinkOpen →Open →Open →Open →