grok-4-1-fast-reasoning vs DeepSeek V4.1 Flash
Both have similar output pricing, while grok-4-1-fast-reasoning offers a larger context window. Choose grok-4-1-fast-reasoning or DeepSeek V4.1 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | grok-4-1-fast-reasoning | DeepSeek V4.1 Flash |
|---|---|---|
| Provider | 302.AI | DeepSeek |
| Input / 1M tokens | $0.20 | $0.05 |
| Output / 1M tokens | $0.50 | $0.50 |
| Context window | 2M | 1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Nov 2025 | — |
| Epoch Capabilities Index score | — | 159 |
| GPQA Diamond score | — | 93.2 |
| LMArena (Chatbot Arena) Elo score | — | 1465 |
| LMArena WebDev Elo score | — | 1665 |
| LMArena Vision Elo score | — | 1278 |
FAQ
Is grok-4-1-fast-reasoning or DeepSeek V4.1 Flash cheaper?
grok-4-1-fast-reasoning and DeepSeek V4.1 Flash have comparable output pricing.
Which has the larger context window, grok-4-1-fast-reasoning or DeepSeek V4.1 Flash?
grok-4-1-fast-reasoning has the larger context window (2M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.