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Comparison · 2 models · Updated Oct 4, 2026

Qwen3 Max vs Qwen3.5 Plus

Qwen3.5 Plus comes out ahead, 66 to 50 on our weighted score, and it is the cheaper option too.

  1. Alibaba (Qwen)

    Qwen3 Max

    Released Sep 23, 2025

    50/100
    • ECI142.4
    • Price$1.20 / $6.00
    • Context262K
  2. Our pick

    Alibaba (Qwen)

    Qwen3.5 Plus

    Released Feb 16, 2026

    66/100
    • ECI146.8
    • Price$0.40 / $2.40
    • Context1M
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01 — Verdict

Qwen3.5 Plus is our pick

Qwen3.5 Plus is the better all-round choice, scoring 66/100 against Qwen3 Max (50). It leads on capability, price, inputs & features and context window. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityQwen3.5 PlusCapabilities Index (ECI): Qwen3.5 Plus 146.8 · Qwen3 Max 142.4
  • Lowest priceQwen3.5 PlusQwen3.5 Plus $0.90 · Qwen3 Max $2.40 per 1M tokens (3:1 blend)
  • Longest contextQwen3.5 PlusQwen3.5 Plus 1,000,000 · Qwen3 Max 262,144 tokens
  • Widest inputsQwen3.5 PlusQwen3 Max: Text · Qwen3.5 Plus: Text, Images, Video
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightQwen3 MaxQwen3.5 Plus
CapabilityCapabilities Index (ECI)50%6874
Price25%3252
Inputs & features15%2570
Context window10%3760
Overall100%50/10066/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Qwen3 Max vs Qwen3.5 Plus specifications side by side
SpecificationQwen3 MaxAlibaba (Qwen)Qwen3.5 PlusAlibaba (Qwen)
Capability
Capabilities Index (ECI)142.4146.8 (best)
ECI rank#91 of 148#65 of 148 (best)
GPQA DiamondGraduate-level science questions72.6%84.9% (best)
FrontierMath Tiers 1–3Research-level mathematics19.0%—
OTIS Mock AIME 2024–2025Competition mathematics73.3%86.7% (best)
SimpleQA VerifiedShort factual questions48.8% (best)25.4%
Price per million tokens
Input$1.20$0.40 (best)
Output$6.00$2.40 (best)
Cached input——
Blended (3:1)$2.40$0.90 (best)
Long-context rateSame rateSame rate
Price sourceOfficial Alibaba APIOfficial Alibaba API
Limits
Context window262,144 tokens1,000,000 tokens (best)
Max output65,536 tokens65,536 tokens
Inputs and features
TextYesYes
ImagesNoYes
PDFsNoNo
AudioNoNo
VideoNoYes
ReasoningNoYes
Tool callingYesYes
Structured outputNoNo
Availability
WeightsProprietaryProprietary
API model IDqwen3-maxqwen3.5-plus
API providers16 (best)10
ReleasedSep 23, 2025Feb 16, 2026
Knowledge cutoffApr 2025Apr 2025
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Qwen3 Max$24.00
  • Qwen3.5 Plus$8.80
04 — Questions

Which should you choose?

Which is better: Qwen3 Max or Qwen3.5 Plus?

Qwen3.5 Plus is the better all-round choice, scoring 66/100 against Qwen3 Max (50). It leads on capability, price, inputs & features and context window. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Qwen3 Max or Qwen3.5 Plus?

Qwen3.5 Plus is cheaper at $0.40 input / $2.40 output per million tokens (official Alibaba API price). Qwen3 Max costs $1.20 input / $6.00 output per million tokens (official Alibaba API price). At a typical mix of three input tokens to one output token, that is $0.90 per million tokens for Qwen3.5 Plus versus $2.40 for Qwen3 Max (2.7× as much).

Which scores higher on benchmarks?

Qwen3.5 Plus scores higher on the Capabilities Index (ECI): Qwen3.5 Plus 146.8 (#65 of 148) and Qwen3 Max 142.4 (#91 of 148). The confidence ranges of the top two overlap (144.6–148.1 vs 140.0–144.6), so treat the gap as small. On individual benchmarks: GPQA Diamond — Qwen3.5 Plus 84.9%, Qwen3 Max 72.6%; OTIS Mock AIME 2024–2025 — Qwen3.5 Plus 86.7%, Qwen3 Max 73.3%; SimpleQA Verified — Qwen3 Max 48.8%, Qwen3.5 Plus 25.4%.

Which is better for coding?

There are no published SWE-bench Verified results for Qwen3 Max and Qwen3.5 Plus yet, so there is no like-for-like coding score. On overall capability, Qwen3.5 Plus leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

Qwen3.5 Plus has the largest context window at 1,000,000 tokens, against 262,144 for Qwen3 Max. Maximum output per response: Qwen3 Max up to 65,536, Qwen3.5 Plus up to 65,536 tokens.

Which can read images, PDFs, audio or video?

Qwen3 Max accepts text; Qwen3.5 Plus accepts text, images and video. Qwen3.5 Plus handles the widest range of inputs.

Are any of these open source?

No. Qwen3 Max and Qwen3.5 Plus are proprietary and only available through APIs and apps.

Which is newer?

Qwen3.5 Plus is the newest, released Feb 16, 2026. Qwen3 Max came out Sep 23, 2025. Knowledge cutoff: Qwen3 Max Apr 2025, Qwen3.5 Plus Apr 2025.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.