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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
Suno
S
Lex
A
Ollama
S
TaglineRun any open-source AI model with an API call.Prompt to full song with vocals, instruments, the works.Google Docs with an AI collaborator baked in.Run LLMs locally. One-line install, GUI optional.
CategoryDev PlatformAudioWritingDev Platform
PricingPay per second of computeFree + $10/mo + $30/moFree + $12/moFree + open source
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Jingles, intros, demos, sketches, personal use.Essays, long-form drafts, thinking on the page.Devs wanting offline/local LLMs for privacy or experimentation.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
  • Clean writing UX — distraction-free
  • +++ prompt triggers AI help
  • Collaboration + AI feedback together
  • Run Llama, Mistral, Qwen, etc. on your laptop
  • Simple CLI + API
  • Hardware-aware (picks the right quant)
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Copyright gray zone
  • Audio quality behind studio
  • Less feature-rich than Google Docs
  • AI ceiling below dedicated tools
  • Needs beefy laptop for larger models
  • Speed way behind cloud APIs
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier in its category. The first AI music tool I'd actually listen to.A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.S-tier for local inference. If you care about privacy or want to tinker, install this today.
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