DeepSeek Reasoner vs DeepSeek V4 Flash Latest
DeepSeek Reasoner is cheaper on output tokens, while DeepSeek V4 Flash Latest offers a larger context window. Choose DeepSeek Reasoner or DeepSeek V4 Flash Latest based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | DeepSeek Reasoner | DeepSeek V4 Flash Latest |
|---|---|---|
| Provider | DeepSeek | DeepSeek |
| Input / 1M tokens | $0.14 | $0.01 |
| Output / 1M tokens | $0.28 | $0.45 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | Yes | — |
| Released | Dec 2025 | — |
| GPQA Diamond score | 83.4 | — |
| LiveBench score | — | 67.7 |
FAQ
Is DeepSeek Reasoner or DeepSeek V4 Flash Latest cheaper?
DeepSeek Reasoner is cheaper on output tokens ($0.28 vs $0.45 per 1M).
Which has the larger context window, DeepSeek Reasoner or DeepSeek V4 Flash Latest?
DeepSeek V4 Flash Latest 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.