OpenAI: GPT-5 Nano (batch)
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...
Everything else
| Max output | 128K |
|---|---|
| Input / 1M | $0.025 |
| Output / 1M | $0.2 |
| Cache read / 1M | $0.003 |
| Cache write / 1M | — |
| 1M in + 1M out | $0.225 |
| Takes | text, image, file |
| Returns | text |
| Tools | yes |
| Reasoning | always on · high, medium, low, minimal |
| Open weights | no |
| Released | 2025-08-07 |
| Knowledge cutoff | 2024-05-31 |
| Retires | — |
| Catalog id | openai/gpt-5-nano:batch |
Using it
In 00, this model is picked per agent — and per tier, so the model that answers your customers need not be the one that writes your code. Get 00.