OpenAI · OpenAI (GPT / ChatGPT)
GPT-5.4
ActiveCost-quality balance for production; roughly half the cost of GPT-5.5. Most commonly recommended frontier value model.
About this version
GPT‑5.4 is the latest active release in the ChatGPT family, positioned as a “balanced” tier model and launched on 1 March 2026. It retains a knowledge cutoff of December 2025 and expands the context window to one million tokens, offering a cost‑quality balance aimed at production use that is roughly half the expense of the subsequent GPT‑5.5 while remaining the most frequently recommended frontier value model.
- API string
- gpt-5.4
- Context window
- 1M ctx
- Knowledge cutoff
- Dec 1, 2025
- Tier
- Balanced
- Released
- Mar 1, 2026
Release & change timeline
1 event- Release
GPT-5.4 released
GPT-5.4 Thinking and Pro launched; cost-quality balance for production.
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