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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.
Pick tools (4 selected)
Chatbots
Research
Coding
Image
Video
Voice
Meetings
Design
Productivity
Audio
Writing
Agents
Dev Platform
Data
Marketing
Education
GitHub Copilot
B
Qwen
A
Devin
A
Flux (Black Forest Labs)
A
TaglineMicrosoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Alibaba's open chat model. Multilingual + agentic.Cognition Labs' autonomous coding engineer.Open weights + strong photorealism. The open-source answer.
CategoryCodingChatbotsAgentsImage
PricingFree (limited) + $10/mo Pro + $19/mo BusinessFree web + API$500/moAPI + open weights (Schnell is Apache 2.0)
Best forTeams with GitHub already. Devs who don't want to change IDEs.Vietnamese/Chinese content, SEA multilingual use, developers wanting open-weight tool-use.Engineering teams offloading tickets. Ops/platform work.Developers + power users who want control and privacy.
Strengths
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Excellent Chinese + Vietnamese + SEA languages
  • Strong at tool-use + agentic workflows
  • Open weights (Qwen2.5, Qwen3)
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • English quality behind Claude/GPT
  • Less well-known outside Asia
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
  • Harder to use than hosted tools
  • Needs infra
Kai's verdictB-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. The best open model for Vietnamese + Chinese. Don't sleep on it if you work in SEA.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.A-tier. S-tier if you self-host. The reason open-source image gen matters.
LinkOpen →Open →Open →Open →