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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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S
Claude
S
DALL-E 3
B
HeyGen
S
TaglineRun any open-source AI model with an API call.Anthropic's flagship — best reasoning + longest useful context.OpenAI's image model. Built into ChatGPT Plus.AI avatar videos. Record once, speak any language.
CategoryDev PlatformChatbotsImageVideo
PricingPay per second of computeFree + $20/mo Pro + team/enterpriseIncluded with ChatGPT Plus $20/moFree + $24-$65/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Long writing, code, careful thinking, documents over 50 pages.ChatGPT Plus users who want images without paying extra.Course creators, multilingual marketers, anyone scaling video content.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Image generation is weak
  • No native web search on all tiers
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.
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