GPT-5.4

GPT-5.4 is a reasoning model created by OpenAI. It is served by OpenAI API.

Self-hostableNo

Reasoning TierBasic

Max Tokens1.1M in / 128K out

Training Cutoff2024-12

Release Date2025-08-07

GPT-5.4 Tokenizer

Token count: 0Show token colors

$0.00

Input: $0.00·Output: $0.00

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