Introducing GPT‑5.4
Read OriginalOpenAI introduces the GPT-5.4 and GPT-5.4-Pro models, available via API, ChatGPT, and Codex CLI. Key features include an August 2025 knowledge cutoff, a 1 million token context window, and improved performance on coding benchmarks and business tasks like spreadsheet modeling and document creation. Pricing is slightly higher than the GPT-5.2 family.
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