GPT-4.1 Nano (2025-04-14)

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Snapshot of GPT-4.1 Nano with a specific release date of April 14, 2025, offering the same capabilities as the base nano model.

context window 1.0M tokens
max output 33K tokens
input price $0.1 / 1M tokens
output price $0.4 / 1M tokens
tool-usejson-modevisionprompt-cachingstreamingreasoningcode-generationfunction-calling
releasedApr 2025
knowledge cutoffMar 2025