gpt-oss-20b vs Claude Opus 5
gpt-oss-20b is cheaper on output tokens, while Claude Opus 5 offers a larger context window. Choose gpt-oss-20b or Claude Opus 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | gpt-oss-20b | Claude Opus 5 |
|---|---|---|
| Provider | Prime Inference | Prime Inference |
| Input / 1M tokens | $0.07 | $5.00 |
| Output / 1M tokens | $0.30 | $25.00 |
| Context window | 131K | 1M |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Aug 2025 | Jul 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.