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Comparison · 3 models · Updated Oct 4, 2026

GPT-5 Pro vs Qwen3.6 Max Preview vs Claude Opus 4.5

Too close to call on our weighted score (Claude Opus 4.5 55, Qwen3.6 Max Preview 54, GPT-5 Pro 54). The right pick depends on what you value most.

  1. OpenAI

    GPT-5 Pro

    Released Oct 6, 2025

    54/100
    • ECI150.3
    • Price$15.00 / $120.00
    • Context400K
    Full specs Remove GPT-5 Pro

  2. Alibaba (Qwen)

    Qwen3.6 Max Preview

    Released Apr 20, 2026

    54/100
    • ECI149.2
    • Price$1.30 / $7.80
    • Context262K
    Full specs Remove Qwen3.6 Max Preview

  3. Anthropic

    Claude Opus 4.5

    Released Nov 24, 2025

    55/100
    • ECI150.1
    • Price$5.00 / $25.00
    • Context200K
    Full specs Remove Claude Opus 4.5
01 — Verdict

Too close to call

It is close. Our weighted score puts them within a point (Claude Opus 4.5 55/100, Qwen3.6 Max Preview 54/100, GPT-5 Pro 54/100), so choose by what matters most for your work: GPT-5 Pro for raw capability and Qwen3.6 Max Preview on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGPT-5 ProCapabilities Index (ECI): GPT-5 Pro 150.3 · Claude Opus 4.5 150.1 · Qwen3.6 Max Preview 149.2
  • Lowest priceQwen3.6 Max PreviewQwen3.6 Max Preview $2.92 · Claude Opus 4.5 $10.00 · GPT-5 Pro $41.25 per 1M tokens (3:1 blend)
  • Longest contextGPT-5 ProGPT-5 Pro 400,000 · Qwen3.6 Max Preview 262,144 · Claude Opus 4.5 200,000 tokens
  • Widest inputsClaude Opus 4.5GPT-5 Pro: Text, Images · Qwen3.6 Max Preview: Text · Claude Opus 4.5: Text, Images, PDFs
  • Self-hostingNo open weightsAll three are available only through APIs
How the score is built
MeasureWeightGPT-5 ProQwen3.6 Max PreviewClaude Opus 4.5
CapabilityCapabilities Index (ECI)50%787778
Price25%0282
Inputs & features15%703580
Context window10%443732
Overall100%54/10054/10055/100
02 — Side by side

Every spec in one table

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

GPT-5 Pro vs Qwen3.6 Max Preview vs Claude Opus 4.5 specifications side by side
SpecificationGPT-5 ProOpenAIQwen3.6 Max PreviewAlibaba (Qwen)Claude Opus 4.5Anthropic
Capability
Capabilities Index (ECI)150.3 (best)149.2150.1
ECI rank#46 of 148 (best)#54 of 148#48 of 148
GPQA DiamondGraduate-level science questions—87.4% (best)86.1%
FrontierMath Tiers 1–3Research-level mathematics55.8% (best)—34.4%
OTIS Mock AIME 2024–2025Competition mathematics—91.1% (best)86.1%
SWE-bench VerifiedFixing real GitHub issues—76.7%76.7%
SimpleQA VerifiedShort factual questions—52.0% (best)45.7%
Price per million tokens
Input$15.00$1.30 (best)$5.00
Output$120.00$7.80 (best)$25.00
Cached input—$0.13 (best)$0.50
Blended (3:1)$41.25$2.92 (best)$10.00
Long-context rateSame rateSame rateSame rate
Price sourceOfficial OpenAI APIOfficial Alibaba APIOfficial Anthropic API
Limits
Context window400,000 tokens (best)262,144 tokens200,000 tokens
Max output272,000 tokens (best)65,536 tokens64,000 tokens
Inputs and features
TextYesYesYes
ImagesYesNoYes
PDFsNoNoYes
AudioNoNoNo
VideoNoNoNo
ReasoningYeshighYesYeslow · medium · high
Tool callingYesYesYes
Structured outputYesNoYes
Availability
WeightsProprietaryProprietaryProprietary
API model IDgpt-5-proqwen3.6-max-previewclaude-opus-4-5
API providers121028 (best)
ReleasedOct 6, 2025Apr 20, 2026Nov 24, 2025
Knowledge cutoffSep 30, 2024Apr 2025May 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.

  • GPT-5 Pro$390.00
  • Qwen3.6 Max Preview$28.60
  • Claude Opus 4.5$100.00
04 — Questions

Which should you choose?

Which is better: GPT-5 Pro, Qwen3.6 Max Preview or Claude Opus 4.5?

It is close. Our weighted score puts them within a point (Claude Opus 4.5 55/100, Qwen3.6 Max Preview 54/100, GPT-5 Pro 54/100), so choose by what matters most for your work: GPT-5 Pro for raw capability and Qwen3.6 Max Preview on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, GPT-5 Pro, Qwen3.6 Max Preview or Claude Opus 4.5?

Qwen3.6 Max Preview is cheaper at $1.30 input / $7.80 output per million tokens (official Alibaba API price). Claude Opus 4.5 costs $5.00 input / $25.00 output per million tokens (official Anthropic API price); GPT-5 Pro costs $15.00 input / $120.00 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $2.92 per million tokens for Qwen3.6 Max Preview versus $10.00 for Claude Opus 4.5 (3.4× as much) and $41.25 for GPT-5 Pro (14× as much).

Which scores higher on benchmarks?

GPT-5 Pro scores higher on the Capabilities Index (ECI): GPT-5 Pro 150.3 (#46 of 148), Claude Opus 4.5 150.1 (#48 of 148) and Qwen3.6 Max Preview 149.2 (#54 of 148). The confidence ranges of the top two overlap (148.5–152.8 vs 147.9–153.0), so treat the gap as small.

Which is better for coding?

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

Which has the bigger context window?

GPT-5 Pro has the largest context window at 400,000 tokens, against 262,144 for Qwen3.6 Max Preview and 200,000 for Claude Opus 4.5. Maximum output per response: GPT-5 Pro up to 272,000, Qwen3.6 Max Preview up to 65,536, Claude Opus 4.5 up to 64,000 tokens.

Which can read images, PDFs, audio or video?

GPT-5 Pro accepts text and images; Qwen3.6 Max Preview accepts text; Claude Opus 4.5 accepts text, images and PDFs. Claude Opus 4.5 handles the widest range of inputs.

Are any of these open source?

No. GPT-5 Pro, Qwen3.6 Max Preview and Claude Opus 4.5 are proprietary and only available through APIs and apps.

Which is newer?

Qwen3.6 Max Preview is the newest, released Apr 20, 2026. Claude Opus 4.5 came out Nov 24, 2025; GPT-5 Pro came out Oct 6, 2025. Knowledge cutoff: GPT-5 Pro Sep 30, 2024, Qwen3.6 Max Preview Apr 2025, Claude Opus 4.5 May 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.

05 — Keep comparing

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