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GPT-5.4 Nano

A quick, lightweight daily model for frequent Q&A, summaries, classification, and short-form writing.

LightweightFast responseDaily tasksSummariesShort writing

The default choice for high-frequency tasks

Best for

Quick Q&A
Text summaries
Copy rewriting

Model traits

Feels snappy
Concise output
Daily rhythm

Use boundaries

Complex reasoning
Large code tasks
Fact checking
Chat History