# Autopilot LLM limitations

> Context window and maximum output token limits for LLMs supported by Autopilot in Test Manager.

## Autopilot LLM limitations

| Model | Context window | Max output tokens |
|---|---|---|
| GPT-4o (OpenAI) | 128K tokens | 16,384 (16K) tokens |
| GPT-5 family (OpenAI) | 400K tokens | Up to 128K tokens |
| Claude Sonnet 4.5 (Anthropic) | 200K tokens | 64K tokens |
| Gemini 2.5 Pro (Google) | Up to ~1M tokens (1,048,576) | ~64K tokens (65,535) |
| Gemini 2.5 Flash (Google) | Up to ~1M tokens (smaller effective reasoning depth than Pro) | ~64K tokens (65,535) |