O
OpenAI

GPT-5 Nano pricing & price history

visionreasoningtoolsopenai/gpt-5-nano

GPT-5 Nano by OpenAI costs $0.05 per 1M input tokens and $0.40 per 1M output tokens, with a 400K token context window.

$0.05Input / 1M tokens
$0.40Output / 1M tokens
400KContext window
Intelligence index

Price history

$0.000$0.230$0.460 2026-09-24today input /1M output /1M

No price changes since tracking began on 2026-09-24. We check hourly.

Cost calculator

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About GPT-5 Nano

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

FAQ

How much does GPT-5 Nano cost?

GPT-5 Nano by OpenAI costs $0.05 per 1M input tokens and $0.40 per 1M output tokens, with a 400K token context window. A typical request with 2,000 input and 500 output tokens costs about $0.0003.

What is the context window of GPT-5 Nano?

GPT-5 Nano supports up to 400,000 tokens of context and up to 128,000 output tokens per request.

Has GPT-5 Nano’s price changed?

No price changes recorded since ModelBank started tracking it on 2026-09-24.

Is GPT-5 Nano being deprecated?

No retirement date has been announced for GPT-5 Nano as of 2026-09-24.