DeepSeek V4.1 Flash vs DeepSeek V4.1 Flash 1017 Thinking
DeepSeek V4.1 Flash is cheaper on output tokens. Choose DeepSeek V4.1 Flash or DeepSeek V4.1 Flash 1017 Thinking based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | DeepSeek V4.1 Flash | DeepSeek V4.1 Flash 1017 Thinking |
|---|---|---|
| Provider | DeepSeek | NanoGPT |
| Input / 1M tokens | $0.06 | $0.15 |
| Output / 1M tokens | $0.14 | $0.60 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | — | Yes |
| Released | — | Oct 2026 |
| GPQA Diamond score | 89.8 | — |
| Epoch Capabilities Index score | 156 | — |
| LMArena (Chatbot Arena) Elo score | 1463 | — |
| LMArena WebDev Elo score | 1618 | — |
| LMArena Vision Elo score | 1277 | — |
FAQ
Is DeepSeek V4.1 Flash or DeepSeek V4.1 Flash 1017 Thinking cheaper?
DeepSeek V4.1 Flash is cheaper on output tokens ($0.14 vs $0.60 per 1M).
Which has the larger context window, DeepSeek V4.1 Flash or DeepSeek V4.1 Flash 1017 Thinking?
Both models offer a similar context window.
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.