GPT-5 Nano

Aug 2025
Retires Dec 11, 2026Move toGPT-6 LunaNewer version
GPT-5 Nano
Compare in
on
—per task?
$0.05 / $0.40per 1M in / outcache $0.005
160 tok/sfirst token in 82 s?
400Kcontext

Rankingat high effort?

Alternatives?

History

5 versions
1,2601,2801,3001,3201,3401,360Apr 25Jul 25Oct 25Jan 26Release dateArena Text · Instruction following4.15 · Aug5.4 · Mar
1,2601,2801,3001,3201,3401,360Apr 25Jul 25Oct 25Jan 26Release dateArena Text · Instruction following4.15 · Aug

FAQ

How much does GPT-5 Nano cost?›

$0.05 per 1M input tokens and $0.40 per 1M output tokens; cached input $0.005 per 1M.

Is GPT-5 Nano free to use?›

There is no free API; the cheapest paid price is $0.05 per 1M input tokens.

How good is GPT-5 Nano, and what is it best at?›

#201 of 336 in Chat & Knowledge, #117 of 239 in Coding, #132 of 242 in Agents & Tool Use, #153 of 197 in Writing & Language, #96 of 125 in Vision & Documents. Strongest at: Instructions.

Is GPT-5 Nano better than Command A?›

On Arena Text · instruction following, GPT-5 Nano scores 1,306.1 vs 1,308.7 — about the same.

How can I use GPT-5 Nano?›

Through the API of Azure, OpenAI.

What is the context window of GPT-5 Nano?›

400K tokens, with up to 128K output tokens.

When was GPT-5 Nano released? Is there a newer version?›

Released 2025-08-07. It has been superseded by GPT-5.6 Luna.

Is GPT-5 Nano open source?›

No, GPT-5 Nano is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.

Can GPT-5 Nano read images?›

It accepts text and images, PDF files as input.

What is GPT-5 Nano?›

GPT-5 Nano is a closed language model from OpenAI, released Aug 2025.

What are the best alternatives to GPT-5 Nano?›

Qwen 3.5 Flash (cheaper), GPT-5 Mini (better), MiMo v2.6 Pro (open weights).