DeepSeek V4.1 Flash vs Claude Sonnet 4.5
DeepSeek V4.1 Flash is cheaper on output tokens, while DeepSeek V4.1 Flash offers a larger context window. Choose DeepSeek V4.1 Flash or Claude Sonnet 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | DeepSeek V4.1 Flash | Claude Sonnet 4.5 |
|---|---|---|
| Provider | Neon | Neon |
| Input / 1M tokens | $0.30 | $3.00 |
| Output / 1M tokens | $1.20 | $15.00 |
| Context window | 1M | 200K |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Sep 2026 | Sep 2025 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.