Compare / head-to-head
Claude Opus 4.1vsQwen3.5 397B-A17B
Qwen3.5 397B-A17B leads 4 of 4 shared benchmarks. Qwen3.5 397B-A17B is 74.8x cheaper per token. 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 – 4
Qwen3.5 397B-A17B leads
Cheaper per token
Qwen3.5 397B-A17B
74.8x cheaper, input + output
Larger context
Qwen3.5 397B-A17B
262K tokens
Provider uptime (30d)
100% · —
Anthropic · Qwen
Claude Opus 4.1
Anthropic · released 2025-08-05
textvision
Qwen3.5 397B-A17B
Qwen · released 2026-02-15
textvision
Quality
Benchmark matrix
4 shared · 2 only Claude Opus 4.1 · 3 only Qwen3.5 397B-A17B| Benchmark | Claude Opus 4.1 | Qwen3.5 397B-A17B | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 4 | ||||
| SWE-bench Verified | 74.5% ↗ | 76.4% ↗ | -1.9 pt | Qwen3.5 397B-A17B |
| GPQA Diamond | 77.3% ↗epoch | 88.4% ↗ | -11.1 pt | Qwen3.5 397B-A17B |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 12.6% ↗epoch | 29.5% ↗epoch | -16.9 pt | Qwen3.5 397B-A17B |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 68.9% ↗epoch | 88.9% ↗epoch | -20 pt | Qwen3.5 397B-A17B |
| Only Claude Opus 4.1 reports · 2 | ||||
| FrontierMath Tier 4 v2 (Epoch AI run) | 2.4% ↗epoch | not reported | — | — |
| SWE-bench Verified (Epoch AI run) | 73.3% ↗epoch | not reported | — | — |
| Only Qwen3.5 397B-A17B reports · 3 | ||||
| MMLU-Pro | not reported | 87.8% ↗ | — | — |
| AIME 2026 | not reported | 94.2% ↗matharena ⚠ | — | — |
| LMArena Elo | not reported | 1438.3 ↗ | — | — |
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 Claude Opus 4.1 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 | Claude Opus 4.1 | Qwen3.5 397B-A17B | Edge |
|---|---|---|---|
| Context window | 200K tokens | 262K tokens | Qwen3.5 397B-A17B |
| Max output | 32K tokens | — | — |
| Input price / 1M | $15 ↗ | $0.172 ↗ | Qwen3.5 397B-A17B |
| Output price / 1M | $75 ↗ | $1.03 ↗ | Qwen3.5 397B-A17B |
| Cached input / 1M | $1.5 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $90 | $1.2 | Qwen3.5 397B-A17B |
| Modalities | text · vision | text · vision | Tie |
| Released | 2025-08-05 | 2026-02-15 | — |
| Cited benchmark scores | 6 | 8 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Claude Opus 4.1 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 Claude Opus 4.1 and Qwen3.5 397B-A17B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.