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Claude Opus 4.5 vs Qwen3.6 Plus

Updated October 21, 2026. 72 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Claude Opus 4.5 Replace Qwen3.6 Plus
Claude Opus 4.5Anthropic
Coding
66.8
Overall
29.1
Output $/M
$25.00
56
Qwen3.6 PlusQwen
Coding
37.4
Overall
27.0
Output $/M
$1.95
15
vs boards won of 72 shared, 1 tied

Decision reading

Pick Claude Opus 4.5 for coding: it scores 66.8 on the Vibe Coding Index against 37.4 for Qwen3.6 Plus.

Pick Qwen3.6 Plus when output tokens cost 12.8x less, or when a solved task costs $1.19 against $1.37.

Model AClaude Opus 4.5Anthropic66.8/1002 independent benchmarks$1.37 per solved taskModel BQwen3.6 PlusQwen37.4/1001 independent benchmark$1.19 per solved task
Shared results
72
Claude Opus 4.5 only
33
Qwen3.6 Plus only
11
Like-for-like categories
8 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.

At a glance

Coding index
Claude Opus 4.5 66.8 from 2 benchmarks, Qwen3.6 Plus 37.4 from 1 benchmark.
Widest category
General, 5.1 points apart on average over 24 shared benchmarks.
Widest single gap
IFBench: Claude Opus 4.5 58.0% against Qwen3.6 Plus 75.2%, 17.2 points apart on a 0 to 100 scale.
Output price
Claude Opus 4.5 $25.00 against Qwen3.6 Plus $1.95 per million output tokens, 12.8x apart.
Context window
Claude Opus 4.5 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.

Boards won, where both have a result
CategoryClaude Opus 4.5BarsQwen3.6 PlusTies
Coding72
Intelligence20
Agentic work02
Reasoning541 tie
Math32
Knowledge111
Web design80
General204
All shared boards56151 tie
CodingLike-for-likeFour of these boards feed the Vibe Coding Index72
Coding benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
SWE-bench Verified79.2%Not measuredOnly Claude Opus 4.5 measured
SWE-bench (full test set)52.6%Not measuredOnly Claude Opus 4.5 measured
SWE-bench Multilingual70.7%Not measuredOnly Claude Opus 4.5 measured
LMArena WebDev14941461Claude Opus 4.5
AA Coding IndexNot measured54.5Only Qwen3.6 Plus measured
LiveCodeBench (Vals AI)83.7%86.0%Qwen3.6 Plus
SWE-bench Verified (Vals AI)76.4%73.4%Claude Opus 4.5
Vibe Code Bench (Vals AI)20.6%25.6%Qwen3.6 Plus
Code migration (Vals AI)Not measured11.1%Only Qwen3.6 Plus measured
ProgramBench (Vals AI)Not measured0.0%Only Qwen3.6 Plus measured
Terminal-Bench 2.1 (Vals AI)Not measured53.2%Only Qwen3.6 Plus measured
LiveCodeBench (Artificial Analysis run)87.1%Not measuredOnly Claude Opus 4.5 measured
Terminal-Bench Hard (Artificial Analysis run)47.0%43.9%Claude Opus 4.5
Terminal-Bench63.1%Not measuredOnly Claude Opus 4.5 measured
GSO-Bench26.5%Not measuredOnly Claude Opus 4.5 measured
WeirdML63.7%Not measuredOnly Claude Opus 4.5 measured
Cybench82.0%Not measuredOnly Claude Opus 4.5 measured
ALE-BenchNot measured670.1Only Qwen3.6 Plus measured
LMArena Text: coding15031467Claude Opus 4.5
LMArena Text: software and IT14831462Claude Opus 4.5
LMArena WebDev: React14781454Claude Opus 4.5
LMArena WebDev: HTML15101463Claude Opus 4.5
LMArena WebDev: from an imageNot measured1472Only Qwen3.6 Plus measured
Neither model has a result on the other 15 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
AA Intelligence Index29.127.0Claude Opus 4.5
Epoch Capabilities Index150.1147.3Claude Opus 4.5
Agentic workLike-for-likePublic boards, shown as published, kept out of the index02
Agentic work benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
Design Arena: agents building web apps1159Not measuredOnly Claude Opus 4.5 measured
Design Arena: agents building full-stack apps1156Not measuredOnly Claude Opus 4.5 measured
Design Arena: agents building mobile apps1189Not measuredOnly Claude Opus 4.5 measured
Design Arena: agents building Android apps1181Not measuredOnly Claude Opus 4.5 measured
Finance Agent (Vals AI)Not measured40.9%Only Qwen3.6 Plus measured
Tax Agent Bench (Vals AI)Not measured7.7%Only Qwen3.6 Plus measured
Legal Research Bench (Vals AI)Not measured14.9%Only Qwen3.6 Plus measured
Excel Modeling Benchmark (Vals AI)Not measured32.9%Only Qwen3.6 Plus measured
τ²-Bench Telecom89.5%97.7%Qwen3.6 Plus
METR time horizons75.0%Not measuredOnly Claude Opus 4.5 measured
Remote Labor Index3.8%Not measuredOnly Claude Opus 4.5 measured
GDPval45.5%Not measuredOnly Claude Opus 4.5 measured
BALROG43.5%Not measuredOnly Claude Opus 4.5 measured
DeepResearch Bench54.8%Not measuredOnly Claude Opus 4.5 measured
OSWorld66.3%Not measuredOnly Claude Opus 4.5 measured
Vending-Bench 2$4,967$5,115Qwen3.6 Plus
Neither model has a result on the other 23 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index54
Reasoning benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
GPQA Diamond85.9%87.4%Qwen3.6 Plus
MMMU Pro (Vals AI)83.0%84.2%Qwen3.6 Plus
GPQA Diamond (Artificial Analysis run)86.6%88.2%Qwen3.6 Plus
Humanity's Last Exam (Artificial Analysis run)30.1%27.8%Claude Opus 4.5
GPQA Diamond (Epoch AI run)86.0%88.4%Qwen3.6 Plus
ARC-AGI80.0%Not measuredOnly Claude Opus 4.5 measured
ARC-AGI-237.6%Not measuredOnly Claude Opus 4.5 measured
SimpleBench62.0%Not measuredOnly Claude Opus 4.5 measured
Chess puzzles14.0%14.0%Tie
Mystery game puzzles22.0%12.0%Claude Opus 4.5
EBR-bench14.3%Not measuredOnly Claude Opus 4.5 measured
VPCT40.0%Not measuredOnly Claude Opus 4.5 measured
LMArena Text: hard prompts14761448Claude Opus 4.5
LMArena Text: expert14871454Claude Opus 4.5
LMArena Text: hard prompts in English14821455Claude Opus 4.5
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index32
Math benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
AIME95.4%94.6%Claude Opus 4.5
MGSM (Vals AI)95.2%Not measuredOnly Claude Opus 4.5 measured
AA Math Index91.3Not measuredOnly Claude Opus 4.5 measured
AIME 2025 (Artificial Analysis run)91.3%Not measuredOnly Claude Opus 4.5 measured
OTIS Mock AIME86.1%93.3%Qwen3.6 Plus
FrontierMath, tiers 1 to 334.4%38.2%Qwen3.6 Plus
FrontierMath, tier 44.9%Not measuredOnly Claude Opus 4.5 measured
ProofBench36.0%Not measuredOnly Claude Opus 4.5 measured
LMArena Text: math14631449Claude Opus 4.5
LMArena Text: mathematical work14681448Claude Opus 4.5
Neither model has a result on the other 3 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index111
Knowledge benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
MMLU Pro87.3%87.7%Qwen3.6 Plus
LegalBench (Vals AI)84.6%84.2%Claude Opus 4.5
CaseLaw (Vals AI)62.6%51.5%Claude Opus 4.5
CorpFin (Vals AI)65.1%61.9%Claude Opus 4.5
TaxEval (Vals AI)74.9%74.7%Claude Opus 4.5
MortgageTax (Vals AI)68.7%68.0%Claude Opus 4.5
MedQA (Vals AI)95.9%Not measuredOnly Claude Opus 4.5 measured
MedCode (Vals AI)49.2%36.9%Claude Opus 4.5
MMLU Pro (Artificial Analysis run)89.5%Not measuredOnly Claude Opus 4.5 measured
SimpleQA Verified45.7%44.1%Claude Opus 4.5
GeoBench75.0%Not measuredOnly Claude Opus 4.5 measured
LMArena Text: science14541439Claude Opus 4.5
LMArena Text: medicine and healthcare14441442Claude Opus 4.5
LMArena Text: legal and government14591437Claude Opus 4.5
LMArena Text: business and finance14481430Claude Opus 4.5
Neither model has a result on the other 2 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index80
Web design benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
Design Arena: websites12471243Claude Opus 4.5
Design Arena: UI components12381233Claude Opus 4.5
Design Arena: game dev12291211Claude Opus 4.5
Design Arena: data viz12431228Claude Opus 4.5
Design Arena: 3D12141202Claude Opus 4.5
Design Arena: all code categories12421236Claude Opus 4.5
Design Arena: SVG11801160Claude Opus 4.5
Design Arena: ASCII art11901115Claude Opus 4.5
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index204
General benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
SAGE (Vals AI)52.1%44.9%Claude Opus 4.5
MedScribe (Vals AI)85.3%77.0%Claude Opus 4.5
Vals Multimodal IndexNot measured51.5%Only Qwen3.6 Plus measured
IFBench58.0%75.2%Qwen3.6 Plus
Long context reasoning (AA-LCR)77.3%78.3%Qwen3.6 Plus
DTBench89.9%81.9%Claude Opus 4.5
LMCA44.5%33.1%Claude Opus 4.5
CL-bench21.1%20.3%Claude Opus 4.5
Furniture assembly28.3%Not measuredOnly Claude Opus 4.5 measured
LMArena Text14511436Claude Opus 4.5
LMArena Text: instruction following14781424Claude Opus 4.5
LMArena Text: creative writing14451404Claude Opus 4.5
LMArena Text: English14611445Claude Opus 4.5
LMArena Text: non-English14381424Claude Opus 4.5
LMArena Text: Chinese14701477Qwen3.6 Plus
LMArena Text: German14491451Qwen3.6 Plus
LMArena Text: Japanese14171390Claude Opus 4.5
LMArena Text: Korean14241379Claude Opus 4.5
LMArena Text: French14711455Claude Opus 4.5
LMArena Text: Spanish14571432Claude Opus 4.5
LMArena Text: Russian14471434Claude Opus 4.5
LMArena Text: Polish14391433Claude Opus 4.5
LMArena Text: multi-turn14661438Claude Opus 4.5
LMArena Text: longer queries14791439Claude Opus 4.5
LMArena Text: writing and language14521418Claude Opus 4.5
LMArena Text: entertainment and media14341402Claude Opus 4.5
LMArena Document1462Not measuredOnly Claude Opus 4.5 measured
Neither model has a result on the other 19 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Opus 4.5 and Qwen3.6 Plus
BenchmarkClaude Opus 4.5Qwen3.6 PlusLeader
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

Claude Opus 4.5$0.018Fits in one request
Qwen3.6 Plus$0.0013Fits in one request

Qwen3.6 Plus costs less

Repository review

50K input + 3K output tokens

Claude Opus 4.5$0.325Fits in one request
Qwen3.6 Plus$0.022Fits in one request

Qwen3.6 Plus costs less

Agent loop

200K input + 10K output tokens

Claude Opus 4.5$1.25Exceeds the context window
Qwen3.6 Plus$0.085Fits in one request

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.

Specifications of Claude Opus 4.5 and Qwen3.6 Plus
SpecificationAnthropic Claude Opus 4.5Qwen3.6 Plus
MakerAnthropicQwen
WeightsNo public weights listedNo public weights listed
ReleasedNovember 24, 2025April 2, 2026
Context window200K1M
Input $/Mtok$5.00$0.325
Output $/Mtok$25.00$1.95
Coding index66.837.4
Independent measurements behind it21
Cost per solved task$1.37$1.19
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Opus 4.5 better than Qwen3.6 Plus for coding?

Pick Claude Opus 4.5 for coding: it scores 66.8 on the Vibe Coding Index against 37.4 for Qwen3.6 Plus. Pick Qwen3.6 Plus when output tokens cost 12.8x less, or when a solved task costs $1.19 against $1.37.

Which is cheaper, Claude Opus 4.5 or Qwen3.6 Plus?

Claude Opus 4.5 costs $5.00 per million input tokens and $25.00 per million output tokens; Qwen3.6 Plus costs $0.325 and $1.95. Per solved SWE-bench Verified task, Claude Opus 4.5 costs $1.37 and Qwen3.6 Plus $1.19.

Which has the bigger context window, Claude Opus 4.5 or Qwen3.6 Plus?

Qwen3.6 Plus, with 1M tokens against 200K.

How many benchmarks is the Claude Opus 4.5 vs Qwen3.6 Plus comparison based on?

72 benchmarks have a result for both models as of October 21, 2026. Claude Opus 4.5's coding index rests on 2 independent benchmarks and Qwen3.6 Plus's on 1. Where only one model has a result, the page says so instead of naming a winner.

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