# OpenAI GPT-5.6 Sol — deprecation status

> No — GPT-5.6 Sol is not deprecated as of July 30, 2026. OpenAI has announced neither a deprecation nor a shutdown date for it.

The flagship of the Sol/Terra/Luna split, where OpenAI stopped shipping one frontier model in three sizes and started naming them for what they are for. Sol is the reasoning tier, and it is where almost every 2026 deprecation points: the o-series, the GPT-5 snapshots, the codex line and the chat-latest pointers all name it as their successor.

## Facts

| Field | Value |
| --- | --- |
| Provider | OpenAI |
| Model id | `gpt-5.6-sol` |
| Status | Active |
| Last verified | July 30, 2026 |

## FAQ

### Is OpenAI GPT-5.6 Sol still available?

Yes. OpenAI GPT-5.6 Sol is active and fully supported as of July 30, 2026.

## Sources

- [OpenAI API deprecations](https://developers.openai.com/api/docs/deprecations) — accessed 2026-07-30

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Canonical page: https://modeldeprecations.dev/openai/gpt-5.6-sol
JSON: https://modeldeprecations.dev/api/v1/models/openai/gpt-5.6-sol.json