DeepSeek V4.1 Flash Marathon vs Claude Opus 5
DeepSeek V4.1 Flash Marathon is cheaper on output tokens, while DeepSeek V4.1 Flash Marathon offers a larger context window. Choose DeepSeek V4.1 Flash Marathon or Claude Opus 5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | DeepSeek V4.1 Flash Marathon | Claude Opus 5 |
|---|---|---|
| Provider | Subconscious | Abacus |
| Input / 1M tokens | $0.14 | $5.00 |
| Output / 1M tokens | $0.28 | $25.00 |
| Context window | 5M | 1M |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Sep 2026 | Jul 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.