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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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Cline
A
Claude Code
S
Leonardo.ai
A
Flux (Black Forest Labs)
A
TaglineOpen-source VS Code agent. Reads + writes + runs.Anthropic's CLI agent. Opus-powered, operates on your repo directly.Gamer + creator image gen with model fine-tuning built in.Open weights + strong photorealism. The open-source answer.
CategoryCodingCodingImageImage
PricingFree (open source) + your API costsPart of Claude Pro/Max/Team plansFree + $12-$60/moAPI + open weights (Schnell is Apache 2.0)
Best forVS Code users who want agentic coding without changing IDEs.Developers who want an agent, not autocomplete. Large refactors, tests, docs.Indie game devs, illustrators, anyone training custom style models.Developers + power users who want control and privacy.
Strengths
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
  • Train your own models on your style/character
  • Great for game art + concept art
  • Generous free tier
  • Runs locally on a beefy GPU
  • Very photoreal
  • Best open-weight model
Weaknesses
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
  • General output behind Midjourney
  • Can be overwhelming
  • Harder to use than hosted tools
  • Needs infra
Kai's verdictA-tier. Best free agentic option in VS Code. Use with Claude for best results.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.A-tier for creators training custom looks. B-tier for general use.A-tier. S-tier if you self-host. The reason open-source image gen matters.
LinkOpen →Open →Open →Open →