GPT-5 Nano
OpenAI· released 7 Aug 2025
openai/gpt-5-nano- Input / 1M tokens
- $0.05
- Output / 1M tokens
- $0.4
Context window400K tokens
Longest answer: 128K tokens
About
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...
Details
- Lab
- OpenAIopenrouter.ai · 3 Oct 2026
- Context
- 400Kopenrouter.ai · 3 Oct 2026
- Input price
- $0.05 / 1Mopenrouter.ai · 3 Oct 2026
- Output price
- $0.4 / 1Mopenrouter.ai · 3 Oct 2026
- Max output
- 128,000 tokensopenrouter.ai · 3 Oct 2026
- Inputs
- text, image, fileopenrouter.ai · 3 Oct 2026
- Open weights
- Noopenrouter.ai · 3 Oct 2026
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Sources
- openrouter.ai/openai/gpt-5-nano· checked 3 Oct 2026