Models / openai / GPT-5.4 Nano

GPT-5.4 Nano

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openaillm

A dated snapshot of GPT-5.4 Nano, providing a stable inference point for reproducibility.

textstreamingjson-modefunction-callingtool-usevisionprompt-cachingreasoning
homepage ↗docs ↗
Specs
Context & limits
272K
context window
128K
max output
Lifecycle
Dates
released2026-03-17
knowledge cutoff2025-12-01
Resources
homepagehttps://openai.com/index/gpt-5/ ↗
docshttps://platform.openai.com/docs/models ↗