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cto.new works with the best frontier LLMs for chat and code generation. Auto model automatically routes your task to the best frontier LLM, balancing performance, cost, speed, and capacity.
Be prepared to experiment with settings when choosing your own model. Performance may vary.
cto.new supports:
  • Claude Opus 4.5
  • Claude Opus 4.6
  • Claude Sonnet 4.6
  • Devstral 2
  • Gemini 3 Flash Preview
  • Gemini 3 Pro Preview
  • Gemini 3.1 Pro Preview
  • GLM 4.7
  • GLM 5
  • GPT 5.2 Codex
  • Grok 4.1 Fast
  • Kimi K2.5
  • MiniMax M2.5