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GPT-5 Nano

Fastest, most cost-efficient version of GPT-5 for summarization and classification tasks.

400K context·$0.05 in·$0.40 out·Aug 2025 release·Vision, Reasoning, Tools / functions, Web search, Image output

Available on

Providers

Where GPT-5 Nano runs in Big-AGI, with each service's own model ID and USD-per-1M-token rates. The summary above prefers the creator's claim; rates below are each service's own.

ServiceModel IDContextInputOutputCache read

OpenAI

creator

gpt-5-nano

400K

$0.05

$0.40

$0.01

OpenRouter

delisted

openai/gpt-5-nano:batch

400K

$0.03

$0.20

Free

openai/gpt-5-nano

400K

$0.05

$0.40

$0.01

Specs as reported by each service · usage over the last 2 days · refreshed hourly

Run GPT-5 Nano in Big-AGI.

Connect your own key on any of the services above, at their rates, no markup - and run it side by side with every other model.

Launch Big-AGI

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