Claude Haiku 5.5 vs DeepSeek V4.1 Flash
Both have similar output pricing, while DeepSeek V4.1 Flash offers a larger context window. Choose Claude Haiku 5.5 or DeepSeek V4.1 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Claude Haiku 5.5 | DeepSeek V4.1 Flash |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Input / 1M tokens | $0.10 | $0.05 |
| Output / 1M tokens | $0.50 | $0.50 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | — | — |
| Released | — | — |
| LMArena (Chatbot Arena) Elo score | 1401 | 1465 |
| LMArena WebDev Elo score | 1589 | 1665 |
| GPQA Diamond score | 89.7 | 93.2 |
| Epoch Capabilities Index score | 160 | 159 |
| LMArena Vision Elo score | — | 1278 |
FAQ
Is Claude Haiku 5.5 or DeepSeek V4.1 Flash cheaper?
Claude Haiku 5.5 and DeepSeek V4.1 Flash have comparable output pricing.
Which has the larger context window, Claude Haiku 5.5 or DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.