OpenAI · OpenAI (GPT / ChatGPT)
GPT-4.1
Activesource:wikidata https://www.wikidata.org/wiki/Q133893610
About this version
GPT‑4.1 is a version of the ChatGPT family released on 1 April 2025 and currently listed as active in the legacy tier. It builds on the earlier GPT‑4 model, extending the context window to one million tokens while retaining a knowledge cutoff of January 2025.
- API string
- gpt-4.1
- Context window
- 1M ctx
- Knowledge cutoff
- Jan 1, 2025
- Tier
- Legacy
- Released
- Apr 1, 2025
Release & change timeline
1 event- Release
GPT-4.1 released
Coding-focused family (4.1, mini, nano) with 1M context.
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