# GPT-4.1 nano: API availability

GPT-4.1 nano: API availability. First seen 10 Nov 2026 Catalogues list a 1,047,576 tokens context window. 2 evidence links.

- Kind: Sighting
- Developer: OpenAI
- Confidence: Confirmed
- First seen: 2026-11-10T19:23:48.038Z
- Model: [GPT-4.1 nano](https://alexgetman.com/models/openai/gpt-4-1-nano/)
- Canonical: https://alexgetman.com/signals/2026/11/10/gpt-4-1-nano/

## Evidence links

- [Arena · leaderboards](https://openai.com/index/gpt-4-1/)
- [OpenAI · deprecations](https://platform.openai.com/docs/deprecations)