Compare / head-to-head
DeepSeek R1vsQwen3.5 397B-A17B
Qwen3.5 397B-A17B leads 5 of 5 shared benchmarks. Qwen3.5 397B-A17B has the larger context window (262K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 5
Qwen3.5 397B-A17B leads
Cheaper per token
—
list price, input + output
Larger context
Qwen3.5 397B-A17B
262K tokens
Provider uptime (30d)
100% · —
DeepSeek · Qwen
DeepSeek R1
DeepSeek · released 2025-01-20
text
- Context
- 128K
- Max out
- 33K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 8 · 7 core
Qwen3.5 397B-A17B
Qwen · released 2026-02-15
textvision
Quality
Benchmark matrix
5 shared · 2 only DeepSeek R1 · 2 only Qwen3.5 397B-A17B| Benchmark | DeepSeek R1 | Qwen3.5 397B-A17B | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 5 | ||||
| SWE-bench Verified | 49.2% ↗ | 76.4% ↗ | -27.2 pt | Qwen3.5 397B-A17B |
| GPQA Diamond | 71.5% ↗ | 88.4% ↗ | -16.9 pt | Qwen3.5 397B-A17B |
| MMLU-Pro | 84% ↗ | 87.8% ↗ | -3.8 pt | Qwen3.5 397B-A17B |
| LMArena Elo | 1372.6 ↗ | 1438.3 ↗ | -65.7 | Qwen3.5 397B-A17B |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 53.3% ↗epoch | 88.9% ↗epoch | -35.6 pt | Qwen3.5 397B-A17B |
| Only DeepSeek R1 reports · 2 | ||||
| MMLU | 90.8% ↗ | not reported | — | — |
| AIME 2025 | 70% ↗matharena | not reported | — | — |
| Only Qwen3.5 397B-A17B reports · 2 | ||||
| AIME 2026 | not reported | 94.2% ↗matharena ⚠ | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 29.5% ↗epoch | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is DeepSeek R1 minus Qwen3.5 397B-A17B in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | DeepSeek R1 | Qwen3.5 397B-A17B | Edge |
|---|---|---|---|
| Context window | 128K tokens | 262K tokens | Qwen3.5 397B-A17B |
| Max output | 33K tokens | — | — |
| Input price / 1M | — | $0.172 ↗ | — |
| Output price / 1M | — | $1.03 ↗ | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | $1.2 | — |
| Modalities | text | text · vision | Qwen3.5 397B-A17B |
| Released | 2025-01-20 | 2026-02-15 | — |
| Cited benchmark scores | 8 | 8 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
DeepSeek R1 vs …
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Qwen3.5 397B-A17B vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run DeepSeek R1 and Qwen3.5 397B-A17B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.