# GPT-5.5: Product update

GPT-5.5: Product update. First seen 21 Oct 2026 Catalogues list a 1,050,000 tokens context window. 8 evidence links.

- Kind: Sighting
- Developer: OpenAI
- Confidence: Confirmed
- First seen: 2026-10-21T16:27:21.696Z
- Model: [GPT-5.5](https://alexgetman.com/models/openai/gpt-5-5/)
- Canonical: https://alexgetman.com/signals/2026/10/21/gpt-5-5/

## Evidence links

- [models.dev · catalogue](https://models.dev/#gpt-5.5:free)
- [models.dev · catalogue](https://models.dev/#xpersona-gpt-5.5)
- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)
- [models.dev · catalogue](https://models.dev/#databricks-gpt-5-5)
- [models.dev · catalogue](https://models.dev/#gpt-5-5)
- [models.dev · catalogue](https://models.dev/#gpt-5.5)
- [OpenAI · pricing](https://developers.openai.com/api/docs/pricing)
- [Arena · leaderboards](https://openai.com/index/introducing-gpt-5-5/)