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BenchLM
Data

Composer 2.5 vs Qwen3.6 Plus

Updated October 2, 2026. We do not rank this pair: at least one has no public score. Public scores include evidence status and uncertainty.

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Decision reading

At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner. 4 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
Cursor logo

Cursor

—

Evidence status unavailable

90% interval unavailable

Model B
Alibaba logo

Alibaba

55.21/100

Supported · Public rank #65

90% interval 46.2–64.2

Shared results
4
Composer 2.5 only
4
Qwen3.6 Plus only
44
Like-for-like categories
0 / 8
Supported: Qwen3.6 PlusHow the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

  • Long documents

    Prompts that approach the documented context limit

    Qwen3.6 Plus

    Qwen3.6 Plus has the larger documented context window.

    Confidence: documented
Show secondary and unsupported calls
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    Composer 2.5 is not ranked on the public lane for coding, so no winner is named for coding.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    Composer 2.5 is not ranked on the public lane for agentic, so no winner is named for agentic.

    Confidence: limited
  • Chat turn cost

    1K fresh input + 500 output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Not enough matched evidence

    The page does not recommend a cost winner because at least one model cannot fit the stated workload in one request. Composer 2.5 does not fit this workload in one request. Composer 2.5 has no published cached-input rate, so cached tokens use its listed input rate. Qwen3.6 Plus has no comparable published API token rate.

    Confidence: rate-fallback
  • Repository review cost

    50K fresh input + 3K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

—Composer 2.542.5Qwen3.6 Plus

Not comparable · BenchAlign v5.8

The coding row is not comparable on the public lane: at least one model is not measured or not ranked there.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

Bars run 0–100 on each benchmark’s normalized display scale

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Agentic

Not comparable
Composer 2.5
Not ranked
Qwen3.6 Plus
33.5
Supported · #75/119
Basis
BenchAlign v5.8 lane · 2 vs 13 public rows
Reading
Not comparable

Coding

Not comparable
Composer 2.5
Not ranked
Qwen3.6 Plus
42.5
Supported · #60/144
Basis
BenchAlign v5.8 lane · 6 vs 7 public rows
Reading
Not comparable

Reasoning

Not comparable
Composer 2.5
Not ranked
Qwen3.6 Plus
61.3
Unranked · 4 rankable rows
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Not comparable

Multimodal

Not comparable
Composer 2.5
Not ranked
Qwen3.6 Plus
67.2
#23/49
Basis
Provisional lane · 0 vs 2 weighted rows
Reading
Not comparable

Knowledge

Not comparable
Composer 2.5
Not ranked
Qwen3.6 Plus
52.4
Supported · #61/171
Basis
BenchAlign v5.8 lane · 0 vs 8 public rows
Reading
Not comparable

Multilingual

Not comparable
Composer 2.5
Not ranked
Qwen3.6 Plus
93.8
#4/16
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Not comparable

Instruction following

Not comparable
Composer 2.5
Not ranked
Qwen3.6 Plus
82.5
#48/125
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Not comparable

Math

Not comparable
Composer 2.5
Not ranked
Qwen3.6 Plus
62.0
#5/7
Basis
Provisional lane · 0 vs 4 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Supported evidence per lane · bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

Composer 2.5
$0.00175
Fits in one request
Qwen3.6 Plus
API rate not published
Fits in one request

Qwen3.6 Plus has no comparable published API token rate.

Repository review

50K fresh input + 3K output tokens

Composer 2.5
$0.0325
Fits in one request
Qwen3.6 Plus
API rate not published
Fits in one request

Qwen3.6 Plus has no comparable published API token rate.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

Composer 2.5
$0.135
Does not fit in one request
Cached input priced at the published list-input rate
Qwen3.6 Plus
API rate not published
Fits in one request
Cached-input rate unavailable

Composer 2.5 does not fit this workload in one request. Composer 2.5 has no published cached-input rate, so cached tokens use its listed input rate. Qwen3.6 Plus has no comparable published API token rate.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Context window

Maximum documented context; output-token limits may be lower.

Composer 2.5

200K

Qwen3.6 Plus

1M

API model ID

Composer 2.5

Not sourced

Qwen3.6 Plus

Not sourced

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

Composer 2.5

Not published

Qwen3.6 Plus

No comparable hosted API rate

Documented inputs

Composer 2.5

Not sourced

Qwen3.6 Plus

Not sourced

Documented outputs

Composer 2.5

Not sourced

Qwen3.6 Plus

Not sourced

Provider availability

Composer 2.5

Not sourced

Qwen3.6 Plus

Not sourced

Reasoning profile

Composer 2.5

Reasoning

Qwen3.6 Plus

Reasoning

Weight access

Composer 2.5

Proprietary

Qwen3.6 Plus

Proprietary

License

Composer 2.5

Proprietary

Qwen3.6 Plus

Proprietary

Release date

Composer 2.5

2026-05-18

Qwen3.6 Plus

2026-04-02

If you already use one of these models

Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner.
Workload cost
A complete comparable API-rate estimate is not available for both models.
Context tradeoff
Qwen3.6 Plus has the larger documented window (1M).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, Composer 2.5 or Qwen3.6 Plus?

At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner. The page therefore keeps the decision tied to the specific documented workload.

Which is better for coding, Composer 2.5 or Qwen3.6 Plus?

Composer 2.5 is not ranked on the public lane for coding, so no winner is named for coding.

Which is better for agentic tasks, Composer 2.5 or Qwen3.6 Plus?

Composer 2.5 is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.

Which costs less, Composer 2.5 or Qwen3.6 Plus?

Both models do not have comparable published API token rates, so this page does not name a universal price winner.

Which has the larger context window, Composer 2.5 or Qwen3.6 Plus?

Qwen3.6 Plus has the larger documented context window: 1M, compared with 200K.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence52 rows

Agentic

  • Terminal-Bench 2.0

    Composer 2.569.3%
    Source
    Qwen3.6 Plus61.6%
    Source

    Composer 2.5 leads this result

  • Terminal-Bench 2.1 (Vals)

    Composer 2.558.4%
    Source
    Qwen3.6 Plus53.2%
    Source

    Composer 2.5 leads this result

  • Claw-Eval

    Composer 2.5—
    Qwen3.6 Plus58.8%
    Source

    Not directly comparable

  • QwenClawBench

    Composer 2.5—
    Qwen3.6 Plus57.2%
    Source

    Not directly comparable

  • τ³-bench results

    Composer 2.5—
    Qwen3.6 Plus70.7%
    Source

    Not directly comparable

  • VITA-Bench

    Composer 2.5—
    Qwen3.6 Plus44.3%
    Source

    Not directly comparable

  • DeepPlanning

    Composer 2.5—
    Qwen3.6 Plus41.5%
    Source

    Not directly comparable

  • Toolathlon

    Composer 2.5—
    Qwen3.6 Plus39.8%
    Source

    Not directly comparable

  • MCP Atlas

    Composer 2.5—
    Qwen3.6 Plus48.2%
    Source

    Not directly comparable

  • MCP-Tasks

    Composer 2.5—
    Qwen3.6 Plus74.1%
    Source

    Not directly comparable

  • WideResearch

    Composer 2.5—
    Qwen3.6 Plus74.3%
    Source

    Not directly comparable

  • Gert Labs

    Composer 2.5—
    Qwen3.6 Plus50.60%
    Source

    Not directly comparable

  • ResearchClawBench

    Composer 2.5—
    Qwen3.6 Plus18.0%
    Source

    Not directly comparable

Coding

  • Terminal-Bench 2.0

    Composer 2.569.3%
    Source
    Qwen3.6 Plus—

    Not directly comparable

  • SWE Multilingual

    Composer 2.579.8%
    Source
    Qwen3.6 Plus73.8%
    Source

    Composer 2.5 leads this result

  • cursorBench31

    Composer 2.563.2%
    Source
    Qwen3.6 Plus—

    Not directly comparable

  • CursorBench 3.2

    Composer 2.556.1%
    Source
    Qwen3.6 Plus—

    Not directly comparable

  • SWE-bench (Vals)

    Composer 2.579.6%
    Source
    Qwen3.6 Plus73.4%
    Source

    Composer 2.5 leads this result

  • CursorBench 4.0

    Composer 2.527.7%
    Source
    Qwen3.6 Plus—

    Not directly comparable

  • SWE-bench Verified

    Composer 2.5—
    Qwen3.6 Plus78.8%
    Source

    Not directly comparable

  • SWE-bench Pro

    Composer 2.5—
    Qwen3.6 Plus56.6%
    Source

    Not directly comparable

  • LiveCodeBench v6

    Composer 2.5—
    Qwen3.6 Plus87.1%
    Source

    Not directly comparable

  • Vibe Code Bench

    Composer 2.5—
    Qwen3.6 Plus25.56%
    Source

    Not directly comparable

  • LiveCodeBench (Vals)

    Composer 2.5—
    Qwen3.6 Plus86.0%
    Source

    Not directly comparable

Reasoning

  • AI-Needle

    Composer 2.5—
    Qwen3.6 Plus68.3%
    Source

    Not directly comparable

  • LongBench v2

    Composer 2.5—
    Qwen3.6 Plus62%
    Source

    Not directly comparable

Multimodal

  • MMMU

    Composer 2.5—
    Qwen3.6 Plus86.0%
    Source

    Not directly comparable

  • MMMU-Pro

    Composer 2.5—
    Qwen3.6 Plus78.8%
    Source

    Not directly comparable

  • MathVision

    Composer 2.5—
    Qwen3.6 Plus88.0%
    Source

    Not directly comparable

  • VideoMMMU

    Composer 2.5—
    Qwen3.6 Plus84.0%
    Source

    Not directly comparable

  • ScreenSpot Pro

    Composer 2.5—
    Qwen3.6 Plus68.2%
    Source

    Not directly comparable

  • CharXiv

    Composer 2.5—
    Qwen3.6 Plus81.5%
    Source

    Not directly comparable

  • V*

    Composer 2.5—
    Qwen3.6 Plus96.9%
    Source

    Not directly comparable

Knowledge

  • GPQA

    Composer 2.5—
    Qwen3.6 Plus90.4%
    Source

    Not directly comparable

  • SuperGPQA

    Composer 2.5—
    Qwen3.6 Plus71.6%
    Source

    Not directly comparable

  • MMLU-Pro

    Composer 2.5—
    Qwen3.6 Plus88.5%
    Source

    Not directly comparable

  • MMLU-Redux

    Composer 2.5—
    Qwen3.6 Plus94.5%
    Source

    Not directly comparable

  • C-Eval

    Composer 2.5—
    Qwen3.6 Plus93.3%
    Source

    Not directly comparable

  • HLE

    Composer 2.5—
    Qwen3.6 Plus28.8%
    Source

    Not directly comparable

  • GPQA Diamond (Vals)

    Composer 2.5—
    Qwen3.6 Plus87.4%
    Source

    Not directly comparable

  • MMLU-Pro (Vals)

    Composer 2.5—
    Qwen3.6 Plus87.7%
    Source

    Not directly comparable

Multilingual

  • MMLU-ProX

    Composer 2.5—
    Qwen3.6 Plus84.7%
    Source

    Not directly comparable

  • NOVA-63

    Composer 2.5—
    Qwen3.6 Plus57.9%
    Source

    Not directly comparable

Instruction following

  • IFEval

    Composer 2.5—
    Qwen3.6 Plus94.3%
    Source

    Not directly comparable

  • IFBench

    Composer 2.5—
    Qwen3.6 Plus75.8%
    Source

    Not directly comparable

Math

  • AIME26

    Composer 2.5—
    Qwen3.6 Plus95.3%
    Source

    Not directly comparable

  • HMMT Feb 2025

    Composer 2.5—
    Qwen3.6 Plus96.7%
    Source

    Not directly comparable

  • HMMT Nov 2025

    Composer 2.5—
    Qwen3.6 Plus94.6%
    Source

    Not directly comparable

  • HMMT Feb 2026

    Composer 2.5—
    Qwen3.6 Plus87.8%
    Source

    Not directly comparable

  • MMAnswerBench

    Composer 2.5—
    Qwen3.6 Plus83.8%
    Source

    Not directly comparable

  • FrontierMath v2 (Tiers 1-3)

    Composer 2.5—
    Qwen3.6 Plus26.207%
    Source

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    Composer 2.5—
    Qwen3.6 Plus8.333%
    Source

    Not directly comparable

52 public results · 4 shared

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Last updated October 2, 2026