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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.
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Dev Platform
Audio
Research
Agents
Coding
Chatbots
Image
Video
Voice
Meetings
Design
Productivity
Writing
Data
Marketing
Education
Claude
S
OpenRouter
S
DALL-E 3
B
GitHub Copilot
B
TaglineAnthropic's flagship — best reasoning + longest useful context.One API, every model. Pay-as-you-go, no subscriptions.OpenAI's image model. Built into ChatGPT Plus.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.
CategoryChatbotsDev PlatformImageCoding
PricingFree + $20/mo Pro + team/enterprisePay per token — model-dependentIncluded with ChatGPT Plus $20/moFree (limited) + $10/mo Pro + $19/mo Business
Best forLong writing, code, careful thinking, documents over 50 pages.Developers experimenting across models. Apps that want fallback logic.ChatGPT Plus users who want images without paying extra.Teams with GitHub already. Devs who don't want to change IDEs.
Strengths
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
Weaknesses
  • Image generation is weak
  • No native web search on all tiers
  • Slight markup over direct API
  • Some provider features not exposed
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Less agentic than Cursor/Claude Code
  • Model quality varies
Kai's verdictS-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.S-tier for model-shopping. I use this for every prototype before committing.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.
LinkOpen →Open →Open →Open →