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DeepSeek R1 vs Qwen3.5 Plus 2026-04-20
List-price comparison ·DeepSeek R1 details ·Qwen3.5 Plus 2026-04-20 details
For a typical workload (100,000 requests / mo), Qwen3.5 Plus 2026-04-20 is the cheapest — 26% less than the priciest here ($108.00/mo vs $146.00/mo).
| DeepSeek R1 | Qwen3.5 Plus 2026-04-20 | |
|---|---|---|
| Input / 1M tokens | $0.500 | $0.300 |
| Output / 1M tokens | $2.15 | $1.80 |
| Typical request (1,200 in + 400 out) | $0.0015 | $0.0011 |
| Context window | 163,840 tokens | 1M tokens |
| Max output | 32,768 tokens | 65,536 tokens |
| Quality score | 84/100 | 88/100 |
| Tier | Flagship | Flagship |
| Provider | DeepSeek | Qwen |
Projected monthly cost
| Requests / mo | DeepSeek R1 | Qwen3.5 Plus 2026-04-20 |
|---|---|---|
| 1,000 | $1.46 | $1.08 |
| 10,000 | $14.60 | $10.80 |
| 100,000 | $146.00 | $108.00 |
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.
Qwen3.5 Plus 2026-04-20
Auto-synced from OpenRouter — no editorial write-up yet.
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Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.