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Introducing GPT-5.4

Today, we’re releasing GPT‑5.4 in ChatGPT (as GPT‑5.4 Thinking), the API, and Codex. It’s our most capable and efficient frontier model for professional work. We’re also releasing GPT‑5.4 Pro in ChatGPT and the API, for people who want maximum performance on complex tasks.

OpenAI launches GPT-5.4 with Pro and Thinking versions

GPT-5.4 is billed as "our most capable and efficient frontier model for professional work."

OpenAI’s GPT-5.4 sets new records on professional benchmarks

The new model introduces native computer use, a 1-million-token context window, and a reworked tool-calling system. Whether it actually holds off Anthropic and Google is less clear.

OpenAI’s new GPT-5.4 model is a big step toward autonomous agents

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