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DeepSeek V3.1 Terminus vs DeepSeek R1
List-price comparison ·DeepSeek V3.1 Terminus details ·DeepSeek R1 details
For a typical workload (100,000 requests / mo), DeepSeek V3.1 Terminus is the cheapest — 50% less than the priciest here ($72.40/mo vs $146.00/mo).
| DeepSeek V3.1 Terminus | DeepSeek R1 | |
|---|---|---|
| Input / 1M tokens | $0.270 | $0.500 |
| Output / 1M tokens | $1.00 | $2.15 |
| Typical request (1,200 in + 400 out) | $0.0007 | $0.0015 |
| Context window | 163,840 tokens | 163,840 tokens |
| Max output | 32,768 tokens | 32,768 tokens |
| Quality score | 85/100 | 84/100 |
| Tier | Balanced | Flagship |
| Provider | DeepSeek | DeepSeek |
Projected monthly cost
| Requests / mo | DeepSeek V3.1 Terminus | DeepSeek R1 |
|---|---|---|
| 1,000 | $0.724 | $1.46 |
| 10,000 | $7.24 | $14.60 |
| 100,000 | $72.40 | $146.00 |
DeepSeek V3.1 Terminus
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DeepSeek R1
Chain-of-thought reasoning competitive with closed flagship models on math and logic benchmarks, at open-weight pricing.
Emits long reasoning traces that inflate output token counts and cost — cap reasoning length or use a distilled variant for latency-sensitive paths.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.