Sesame: CSM 1B vs Claude Opus 5
Sesame: CSM 1B is cheaper on output tokens, while Claude Opus 5 offers a larger context window. Choose Sesame: CSM 1B or Claude Opus 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Sesame: CSM 1B | Claude Opus 5 |
|---|---|---|
| Provider | Sesame | Abacus |
| Input / 1M tokens | $7.00 | $5.00 |
| Output / 1M tokens | $0.00 | $25.00 |
| Context window | 4K | 1M |
| Parameters | — | — |
| Open weights | — | No |
| Released | — | Jul 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.