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Compare AI tools

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
DeepSeek
S
Stable Audio
A
GitHub Copilot
B
Grammarly
A
TaglineChinese open-weight powerhouse. Crazy cheap, genuinely smart.Stability AI's open audio model. Loops + SFX + background.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Grammar check + tone + AI drafting, everywhere you type.
CategoryChatbotsAudioCodingWriting
PricingFree web + ultra-cheap API (~$0.14/M input tokens)Free + $12/mo Pro + enterpriseFree (limited) + $10/mo Pro + $19/mo BusinessFree + $12-$15/mo Premium + team plans
Best forDevelopers + cost-conscious builders. Anyone fine with self-hosting.Game developers, podcasters needing SFX, video creators needing background music.Teams with GitHub already. Devs who don't want to change IDEs.Non-native English writers, business email, anyone who types a lot.
Strengths
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Open-weight model available
  • Great for loops + game audio + SFX
  • Commercial-use clarity
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Works in every browser/app
  • Now has generative AI (GrammarlyGO)
  • Tone detection + suggestions
Weaknesses
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Not for full songs with vocals
  • Shorter generation limits
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Can feel naggy
  • Premium features gate basics
  • Privacy concerns (reads your writing)
Kai's verdictS-tier for price/performance. A-tier for consumer use. If you build apps, this is the budget pick.A-tier for its niche. Different use case than Suno — SFX and loops, not songs.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier for non-native English speakers. B-tier if your English is already strong — Claude does better with tone.
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