GPT-5 Nano
GPT-5 NanoAlternatives?
CheaperGemma 3 27BunstatedOpensame-27%$0.08 / $0.16Context: 400K → 131KBetterGPT-5 Minihighwins 56%+400%$0.053
OpenGLM 5.3 Flashunstatedwins 68%+73%$0.15 / $0.50Defaults to max · Self-hosted+4BetterGPT-6 Lunamaxwins 58%+45%$0.068Function calling only with none · Chat Completions+3BetterGPT-5.6 Lunaxhighwins 64%+227%$0.085Gemma 3 27BunstatedOpensame-27%$0.08 / $0.16Context: 400K → 131KGPT-5 Minihighwins 56%+400%$0.053GPT-6 Lunamaxwins 58%+45%$0.068Function calling only with none · Chat Completions+3GPT-5.6 Lunaxhighwins 64%+227%$0.085GPT-5.6 Terraxhighwins 66%+3,173%$0.63Prompts with >272K input tokensGPT-6.1 Solmaxwins 68%+2,809%$0.72Remove unsupported parameters+5GLM 5.3 FlashunstatedOpenwins 68%+73%$0.15 / $0.50Defaults to max · Self-hosted+4
Kimi K2.6unstatedOpenwins 67%+1,145%$0.95 / $4Context: 400K → 256KGemma 4 31BunstatedOpenwins 66%+16%$0.10 / $0.34Context: 400K → 256K
Qwen3.8 27BunstatedOpenwins 65%+595%$0.42 / $2.55Context: 400K → 262K+5Kimi K2.5thinkingOpenwins 65%+773%$0.60 / $3Context: 400K → 256KGPT-5.4highwins 70%—$2.50 / $15GPT-5.5highwins 68%—$1.40Prompts with >272K input tokensGPT-6.1 Solmaxwins 68%—$0.72Remove unsupported parameters+5GPT-5.6 Solxhighwins 67%—$1.18GPT-6 Astramaxwins 67%—$3.26Monitoring can return HTTP 403+2GPT-5.6 Terraxhighwins 66%—$0.63Prompts with >272K input tokensGPT-5.6 Lunaxhighwins 64%—$0.085GPT-5.1highwins 63%—$1.25 / $10All OpenAI models →History
5 versionsFAQ
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 GLM 4.6V?›
On Arena Vision · overall, GPT-5 Nano scores 1,159.5 vs 1,163.9 — 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 It has been superseded by GPT-5.6 Luna.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 GLM 5.3 Flash.
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?›
Gemma 3 27B (cheaper), GPT-5 Mini (better), GLM 5.3 Flash (open weights).