# Compare models

> For the complete documentation index, see [llms.txt](/llms.txt). Markdown versions of documentation pages are available by appending `.md` to the page URL.

> Compare current model capabilities, context windows, and token pricing.

| Model | Context window | Max output | Supported endpoints |
| --- | ---: | ---: | --- |
| [GPT-5.6 Sol](/api/docs/models/gpt-5.6-sol.md) | 1,050,000 | 128,000 | Chat Completions, Responses, Batch |
| [GPT-5.6 Terra](/api/docs/models/gpt-5.6-terra.md) | 1,050,000 | 128,000 | Chat Completions, Responses, Batch |
| [GPT-5.6 Luna](/api/docs/models/gpt-5.6-luna.md) | 1,050,000 | 128,000 | Chat Completions, Responses, Batch |
| [GPT-5.5](/api/docs/models/gpt-5.5.md) | 1,050,000 | 128,000 | Chat Completions, Responses, Batch |