OpenAIGPT-5 nano: API availability
GPT-5 nano: API availability. First seen 13 Sep 2026 Catalogues list a 400,000 tokens context window. 11 evidence links.
Facts as of
- Context window
- 400,000
- Input · USD / 1M tokens
- $0.05
- Output · USD / 1M tokens
- $0.40
- Max output
- 128,000
- Input
- text · image
- Output
- text
- Cached input · USD / 1M tokens
- $0.005
Alex's take
Alex has not commented on this signal yet. When Alex posts about a signal, the post appears here and on the home page beside it.
Evidence links 11
- Arena · leaderboardsfirst · platform.openai.com
- OpenCode · discoveryevidence linkopencode.ai
- OpenRouterevidence linkopenrouter.ai
- Artificial Analysis · benchmarksevidence linkartificialanalysis.ai
- OpenRouterevidence linkopenrouter.ai
- Vercel AI Gatewayevidence linkvercel.com
- OpenAI · pricingevidence linkdevelopers.openai.com
- OpenAI · model indexevidence linkdevelopers.openai.com
- models.dev · catalogueevidence linkmodels.dev
- models.dev · catalogueevidence linkmodels.dev
- OpenAI · deprecationsevidence linkplatform.openai.com