Engine works with all of the best frontier LLMs for code and we add new models all the time.

Access to some models requires a paid subscription.

You can set the model on a per repo basis from the repository settings menu.

Supported models:

  • Anthropic Claude 4 Sonnet
  • Anthropic Claude 4 Opus
  • Anthropic Claude 3.7 Sonnet
  • Anthropic Claude 3.5 Sonnet
  • Google Gemini 2.5 Pro Preview (beta)
  • OpenAI GPT 4.1
  • OpenAI o3 (3x usage costs)
  • Open AI o4 Mini

Performance may vary on some models. Be prepared to experiment when changing Engine’s model

LLM models are never trained or fine-tuned on any of your code or Engine usage.