OpenAI: GPT-5.4
openai/gpt-5.4
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
Modalities
In / Out Price
$2.50 / $15 per 1M
Context
1.1M
Released
Mar 5, 2026
Knowledge Cutoff
—
Apps using this model
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