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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
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
Design
Productivity
Writing
Data
Marketing
Education
OpenRouter
S
DALL-E 3
B
Leonardo.ai
A
GitHub Copilot
B
TaglineOne API, every model. Pay-as-you-go, no subscriptions.OpenAI's image model. Built into ChatGPT Plus.Gamer + creator image gen with model fine-tuning built in.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.
CategoryDev PlatformImageImageCoding
PricingPay per token — model-dependentIncluded with ChatGPT Plus $20/moFree + $12-$60/moFree (limited) + $10/mo Pro + $19/mo Business
Best forDevelopers experimenting across models. Apps that want fallback logic.ChatGPT Plus users who want images without paying extra.Indie game devs, illustrators, anyone training custom style models.Teams with GitHub already. Devs who don't want to change IDEs.
Strengths
  • 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
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • General output behind Midjourney
  • Can be overwhelming
  • Less agentic than Cursor/Claude Code
  • Model quality varies
Kai's verdictS-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.A-tier for creators training custom looks. B-tier for general use.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.
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