Claude Opus 4.1 vs Qwen3.6 Plus
Updated October 21, 2026. 57 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
Decision reading
Pick Qwen3.6 Plus for coding: it scores 37.4 on the Vibe Coding Index against 27.2 for Claude Opus 4.1.
Pick Claude Opus 4.1 when what matters is LMArena Text: coding or Mystery game puzzles, where it leads.
- Shared results
- 57
- Claude Opus 4.1 only
- 14
- Qwen3.6 Plus only
- 26
- Like-for-like categories
- 7 of 9
Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, four public coding benchmarks
Qwen3.6 Plus
Qwen3.6 Plus scores 37.4 against 27.2.
One benchmark behind each score
Intelligence
AA Intelligence Index
Qwen3.6 Plus
Qwen3.6 Plus leads, 27.0 against 22.8.
Same board, both measured
Reasoning
GPQA Diamond
Qwen3.6 Plus
Qwen3.6 Plus leads, 87.4% against 76.3%.
Same board, both measured
Math
AIME
Qwen3.6 Plus
Qwen3.6 Plus leads, 94.6% against 78.2%.
Same board, both measured
Knowledge
MMLU Pro
Claude Opus 4.1
Claude Opus 4.1 leads, 87.9% against 87.7%.
Same board, both measured
Web design
Design Arena: websites
Qwen3.6 Plus
Qwen3.6 Plus leads, 1243 against 1177.
Same board, both measured
Long documents
Listed context window
Qwen3.6 Plus
Qwen3.6 Plus takes 1M tokens against 200K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Qwen3.6 Plus
Claude Opus 4.1 $0.052, Qwen3.6 Plus $0.0013 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Qwen3.6 Plus has the number, $1.19.
Directional only
At a glance
- Coding index
- Claude Opus 4.1 27.2 from 1 benchmark, Qwen3.6 Plus 37.4 from 1 benchmark.
- Widest category
- Math, 14.4 points apart on average over 5 shared benchmarks.
- Widest single gap
- FrontierMath, tiers 1 to 3: Claude Opus 4.1 12.6% against Qwen3.6 Plus 38.2%, 25.6 points apart on a 0 to 100 scale.
- Output price
- Claude Opus 4.1 $75.00 against Qwen3.6 Plus $1.95 per million output tokens, 38.5x apart.
- Context window
- Claude Opus 4.1 takes 200K tokens, Qwen3.6 Plus 1M.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Claude Opus 4.1 | Bars | Qwen3.6 Plus | Ties |
|---|---|---|---|---|
| Coding | 1 | 4 | ||
| Intelligence | 0 | 2 | ||
| Reasoning | 1 | 6 | ||
| Math | 0 | 5 | ||
| Knowledge | 2 | 7 | ||
| Web design | 1 | 7 | ||
| General | 7 | 14 | ||
| All shared boards | 12 | 45 |
CodingLike-for-likeFour of these boards feed the Vibe Coding Index14
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| LMArena WebDev | 1390 | 1461 | Qwen3.6 Plus |
| AA Coding Index | Not measured | 54.5 | Only Qwen3.6 Plus measured |
| LiveCodeBench (Vals AI) | 66.5% | 86.0% | Qwen3.6 Plus |
| SWE-bench Verified (Vals AI) | Not measured | 73.4% | Only Qwen3.6 Plus measured |
| Vibe Code Bench (Vals AI) | Not measured | 25.6% | Only Qwen3.6 Plus measured |
| Code migration (Vals AI) | Not measured | 11.1% | Only Qwen3.6 Plus measured |
| ProgramBench (Vals AI) | Not measured | 0.0% | Only Qwen3.6 Plus measured |
| Terminal-Bench 2.1 (Vals AI) | Not measured | 53.2% | Only Qwen3.6 Plus measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 43.9% | Only Qwen3.6 Plus measured |
| Terminal-Bench | 38.0% | Not measured | Only Claude Opus 4.1 measured |
| WeirdML | 45.9% | Not measured | Only Claude Opus 4.1 measured |
| Cybench | 42.0% | Not measured | Only Claude Opus 4.1 measured |
| ALE-Bench | Not measured | 670.1 | Only Qwen3.6 Plus measured |
| LMArena Text: coding | 1479 | 1467 | Claude Opus 4.1 |
| LMArena Text: software and IT | 1456 | 1462 | Qwen3.6 Plus |
| LMArena WebDev: React | Not measured | 1454 | Only Qwen3.6 Plus measured |
| LMArena WebDev: HTML | 1399 | 1463 | Qwen3.6 Plus |
| LMArena WebDev: from an image | Not measured | 1472 | Only Qwen3.6 Plus measured |
| Neither model has a result on the other 20 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| AA Intelligence Index | 22.8 | 27.0 | Qwen3.6 Plus |
| Epoch Capabilities Index | 144.1 | 147.3 | Qwen3.6 Plus |
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| Finance Agent (Vals AI) | Not measured | 40.9% | Only Qwen3.6 Plus measured |
| Tax Agent Bench (Vals AI) | Not measured | 7.7% | Only Qwen3.6 Plus measured |
| Legal Research Bench (Vals AI) | Not measured | 14.9% | Only Qwen3.6 Plus measured |
| Excel Modeling Benchmark (Vals AI) | Not measured | 32.9% | Only Qwen3.6 Plus measured |
| τ²-Bench Telecom | Not measured | 97.7% | Only Qwen3.6 Plus measured |
| METR time horizons | 66.8% | Not measured | Only Claude Opus 4.1 measured |
| GDPval | 43.6% | Not measured | Only Claude Opus 4.1 measured |
| DeepResearch Bench | 48.3% | Not measured | Only Claude Opus 4.1 measured |
| Vending-Bench 2 | Not measured | $5,115 | Only Qwen3.6 Plus measured |
| Neither model has a result on the other 30 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index16
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| GPQA Diamond | 76.3% | 87.4% | Qwen3.6 Plus |
| MMMU Pro (Vals AI) | 77.5% | 84.2% | Qwen3.6 Plus |
| GPQA Diamond (Artificial Analysis run) | Not measured | 88.2% | Only Qwen3.6 Plus measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 27.8% | Only Qwen3.6 Plus measured |
| GPQA Diamond (Epoch AI run) | 77.3% | 88.4% | Qwen3.6 Plus |
| SimpleBench | 60.0% | Not measured | Only Claude Opus 4.1 measured |
| Chess puzzles | Not measured | 14.0% | Only Qwen3.6 Plus measured |
| Mystery game puzzles | 21.0% | 12.0% | Claude Opus 4.1 |
| EBR-bench | 7.9% | Not measured | Only Claude Opus 4.1 measured |
| VPCT | 35.0% | Not measured | Only Claude Opus 4.1 measured |
| LMArena Text: hard prompts | 1442 | 1448 | Qwen3.6 Plus |
| LMArena Text: expert | 1438 | 1454 | Qwen3.6 Plus |
| LMArena Text: hard prompts in English | 1451 | 1455 | Qwen3.6 Plus |
| Neither model has a result on the other 8 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index05
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| AIME | 78.2% | 94.6% | Qwen3.6 Plus |
| MATH 500 (Vals AI) | 95.4% | Not measured | Only Claude Opus 4.1 measured |
| MGSM (Vals AI) | 94.4% | Not measured | Only Claude Opus 4.1 measured |
| OTIS Mock AIME | 68.9% | 93.3% | Qwen3.6 Plus |
| FrontierMath, tiers 1 to 3 | 12.6% | 38.2% | Qwen3.6 Plus |
| FrontierMath, tier 4 | 2.4% | Not measured | Only Claude Opus 4.1 measured |
| LMArena Text: math | 1431 | 1449 | Qwen3.6 Plus |
| LMArena Text: mathematical work | 1434 | 1448 | Qwen3.6 Plus |
| Neither model has a result on the other 5 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index27
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| MMLU Pro | 87.9% | 87.7% | Claude Opus 4.1 |
| LegalBench (Vals AI) | 83.5% | 84.2% | Qwen3.6 Plus |
| CaseLaw (Vals AI) | Not measured | 51.5% | Only Qwen3.6 Plus measured |
| CorpFin (Vals AI) | Not measured | 61.9% | Only Qwen3.6 Plus measured |
| TaxEval (Vals AI) | 73.7% | 74.7% | Qwen3.6 Plus |
| MortgageTax (Vals AI) | 61.1% | 68.0% | Qwen3.6 Plus |
| MedQA (Vals AI) | 93.6% | Not measured | Only Claude Opus 4.1 measured |
| MedCode (Vals AI) | 47.2% | 36.9% | Claude Opus 4.1 |
| SimpleQA Verified | Not measured | 44.1% | Only Qwen3.6 Plus measured |
| LMArena Text: science | 1422 | 1439 | Qwen3.6 Plus |
| LMArena Text: medicine and healthcare | 1416 | 1442 | Qwen3.6 Plus |
| LMArena Text: legal and government | 1421 | 1437 | Qwen3.6 Plus |
| LMArena Text: business and finance | 1406 | 1430 | Qwen3.6 Plus |
| Neither model has a result on the other 4 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index17
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| Design Arena: websites | 1177 | 1243 | Qwen3.6 Plus |
| Design Arena: UI components | 1164 | 1233 | Qwen3.6 Plus |
| Design Arena: game dev | 1172 | 1211 | Qwen3.6 Plus |
| Design Arena: data viz | 1166 | 1228 | Qwen3.6 Plus |
| Design Arena: 3D | 1153 | 1202 | Qwen3.6 Plus |
| Design Arena: all code categories | 1171 | 1236 | Qwen3.6 Plus |
| Design Arena: SVG | 1152 | 1160 | Qwen3.6 Plus |
| Design Arena: ASCII art | 1167 | 1115 | Claude Opus 4.1 |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index714
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| SAGE (Vals AI) | 31.4% | 44.9% | Qwen3.6 Plus |
| MedScribe (Vals AI) | 73.9% | 77.0% | Qwen3.6 Plus |
| Vals Multimodal Index | Not measured | 51.5% | Only Qwen3.6 Plus measured |
| IFBench | Not measured | 75.2% | Only Qwen3.6 Plus measured |
| Long context reasoning (AA-LCR) | Not measured | 78.3% | Only Qwen3.6 Plus measured |
| DTBench | 80.0% | 81.9% | Qwen3.6 Plus |
| LMCA | 37.1% | 33.1% | Claude Opus 4.1 |
| Creative writing (Lech Mazur) | 84.7% | Not measured | Only Claude Opus 4.1 measured |
| CL-bench | Not measured | 20.3% | Only Qwen3.6 Plus measured |
| LMArena Text | 1419 | 1436 | Qwen3.6 Plus |
| LMArena Text: instruction following | 1435 | 1424 | Claude Opus 4.1 |
| LMArena Text: creative writing | 1412 | 1404 | Claude Opus 4.1 |
| LMArena Text: English | 1433 | 1445 | Qwen3.6 Plus |
| LMArena Text: non-English | 1405 | 1424 | Qwen3.6 Plus |
| LMArena Text: Chinese | 1427 | 1477 | Qwen3.6 Plus |
| LMArena Text: German | 1413 | 1451 | Qwen3.6 Plus |
| LMArena Text: Japanese | 1377 | 1390 | Qwen3.6 Plus |
| LMArena Text: Korean | 1381 | 1379 | Claude Opus 4.1 |
| LMArena Text: French | 1433 | 1455 | Qwen3.6 Plus |
| LMArena Text: Spanish | 1448 | 1432 | Claude Opus 4.1 |
| LMArena Text: Russian | 1422 | 1434 | Qwen3.6 Plus |
| LMArena Text: Polish | 1413 | 1433 | Qwen3.6 Plus |
| LMArena Text: multi-turn | 1444 | 1438 | Claude Opus 4.1 |
| LMArena Text: longer queries | 1455 | 1439 | Claude Opus 4.1 |
| LMArena Text: writing and language | 1418 | 1418 | Qwen3.6 Plus |
| LMArena Text: entertainment and media | 1398 | 1402 | Qwen3.6 Plus |
| Neither model has a result on the other 20 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Claude Opus 4.1 | Qwen3.6 Plus | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Qwen3.6 Plus costs less
Repository review
50K input + 3K output tokens
Qwen3.6 Plus costs less
Agent loop
200K input + 10K output tokens
Qwen3.6 Plus costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Anthropic Claude Opus 4.1 | Qwen3.6 Plus |
|---|---|---|
| Maker | Anthropic | Qwen |
| Weights | No public weights listed | No public weights listed |
| Released | August 5, 2025 | April 2, 2026 |
| Context window | 200K | 1M |
| Input $/Mtok | $15.00 | $0.325 |
| Output $/Mtok | $75.00 | $1.95 |
| Coding index | 27.2 | 37.4 |
| Independent measurements behind it | 1 | 1 |
| Cost per solved task | Not computable | $1.19 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Claude Opus 4.1 better than Qwen3.6 Plus for coding?
Pick Qwen3.6 Plus for coding: it scores 37.4 on the Vibe Coding Index against 27.2 for Claude Opus 4.1. Pick Claude Opus 4.1 when what matters is LMArena Text: coding or Mystery game puzzles, where it leads.
Which is cheaper, Claude Opus 4.1 or Qwen3.6 Plus?
Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens; Qwen3.6 Plus costs $0.325 and $1.95. Cost per solved task is known for Qwen3.6 Plus only.
Which has the bigger context window, Claude Opus 4.1 or Qwen3.6 Plus?
Qwen3.6 Plus, with 1M tokens against 200K.
How many benchmarks is the Claude Opus 4.1 vs Qwen3.6 Plus comparison based on?
57 benchmarks have a result for both models as of October 21, 2026. Claude Opus 4.1's coding index rests on 1 independent benchmark and Qwen3.6 Plus's on 1. Where only one model has a result, the page says so instead of naming a winner.