GPT-5.4
by OpenAI · ID gpt-5.4 · Released 2026-03 · Proprietary
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ELO Score
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MMLU
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HumanEval
1M
Context Window
$2.50
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About GPT-5.4
OpenAI's March 2026 frontier model for professional reasoning and agentic coding, released across ChatGPT, API, and Codex.
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