gpt-oss-20b vs GPT-5 Nano
OpenAI vs OpenAI — side-by-side specifications, pricing, and estimated usage cost.
| Spec / Metric | gpt-oss-20b OpenAI | GPT-5 Nano OpenAI |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Context Window | 131,072 | 400,000 |
| Input Price / 1M | $0.018000 ★ | $0.050000 |
| Output Price / 1M | $0.090000 ★ | $0.400000 |
| Est. Cost / Month (1000 rpd) | $1.89 ★ | $7.50 |
| Modalities | text | text, image, file |