Model Comparison

Qwen3.7-Plus vs Seed 2.1 ProWhich is better in 2026?

Seed 2.1 Pro shows notably better performance in the majority of benchmarks.

Verdict: Qwen3.7-Plus vs Seed 2.1 Pro — which is better?

Qwen3.7-Plus (by Alibaba Cloud / Qwen Team) and Seed 2.1 Pro (by ByteDance) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Qwen3.7-Plus outperforms in 7 benchmarks (ClawEval-MM, OCRBench_V2, RealWorldQA, SimpleVQA, SuperGPQA, SWE-Bench Pro, WorldVQA), while Seed 2.1 Pro is better at 13 benchmarks (BabyVision, CharXiv-R, ERQA, Humanity's Last Exam, LVBench, MathVision, MCP Atlas, MMMU-Pro, NL2Repo, SciCode, TVBench, Video-MME, VisFactor). Seed 2.1 Pro shows notably better performance in the majority of benchmarks.

Choose Qwen3.7-Plus if…

  • you want predictable pricing at $0.32/M input and $1.28/M output

Choose Seed 2.1 Pro if…

  • you want the strongest raw capability — it leads on 13 of 20 shared benchmarks
  • you want the most recent training data — it shipped Jun 2026

Performance Benchmarks

Comparative analysis across standard metrics

20 benchmarks

Qwen3.7-Plus outperforms in 7 benchmarks (ClawEval-MM, OCRBench_V2, RealWorldQA, SimpleVQA, SuperGPQA, SWE-Bench Pro, WorldVQA), while Seed 2.1 Pro is better at 13 benchmarks (BabyVision, CharXiv-R, ERQA, Humanity's Last Exam, LVBench, MathVision, MCP Atlas, MMMU-Pro, NL2Repo, SciCode, TVBench, Video-MME, VisFactor).

Seed 2.1 Pro shows notably better performance in the majority of benchmarks.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Qwen3.7-Plus specifies input context (1,000,000 tokens). Only Qwen3.7-Plus specifies output context (65,536 tokens).

Alibaba Cloud / Qwen Team
Qwen3.7-Plus
Input1,000,000 tokens
Output65,536 tokens
ByteDance
Seed 2.1 Pro
Input- tokens
Output- tokens
Fri Jul 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Qwen3.7-Plus and Seed 2.1 Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Qwen3.7-Plus

Text
Images
Audio
Video

Seed 2.1 Pro

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Qwen3.7-Plus

Proprietary

Closed source

Seed 2.1 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Qwen3.7-Plus was released on 2026-05-31, while Seed 2.1 Pro was released on 2026-06-24.

Seed 2.1 Pro is 1 month newer than Qwen3.7-Plus.

Qwen3.7-Plus

May 31, 2026

1 months ago

Seed 2.1 Pro

Jun 24, 2026

3 weeks ago

3w newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Alibaba Cloud / Qwen Team

Qwen3.7-Plus

View details

Alibaba Cloud / Qwen Team

Larger context window (1,000,000 tokens)
Higher ClawEval-MM score (55.7% vs 51.0%)
Higher OCRBench_V2 score (67.1% vs 63.2%)
Higher RealWorldQA score (86.9% vs 86.7%)
Higher SimpleVQA score (81.7% vs 74.5%)
Higher SuperGPQA score (71.4% vs 70.8%)
Higher SWE-Bench Pro score (57.6% vs 57.5%)
Higher WorldVQA score (61.1% vs 53.0%)
ByteDance
Higher BabyVision score (73.7% vs 70.4%)
Higher CharXiv-R score (86.4% vs 85.9%)
Higher ERQA score (72.0% vs 69.8%)
Higher Humanity's Last Exam score (55.7% vs 34.7%)
Higher LVBench score (78.0% vs 76.2%)
Higher MathVision score (94.5% vs 90.3%)
Higher MCP Atlas score (83.8% vs 73.2%)
Higher MMMU-Pro score (82.7% vs 79.0%)
Higher NL2Repo score (47.0% vs 41.1%)
Higher SciCode score (59.8% vs 51.3%)
Higher TVBench score (80.5% vs 78.2%)
Higher Video-MME score (89.2% vs 88.0%)
Higher VisFactor score (51.4% vs 42.8%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Qwen3.7-Plus and Seed 2.1 Pro side-by-side, then vote on the output you prefer.

Qwen3.7-Plus
✓ Preferred
Seed 2.1 Pro
Open in Playground
AI Model Comparison Table
Feature
Alibaba Cloud / Qwen Team
Qwen3.7-Plus
ByteDance
Seed 2.1 Pro

FAQ

Common questions about Qwen3.7-Plus vs Seed 2.1 Pro.

Which is better, Qwen3.7-Plus or Seed 2.1 Pro?

Seed 2.1 Pro shows notably better performance in the majority of benchmarks. Qwen3.7-Plus is made by Alibaba Cloud / Qwen Team and Seed 2.1 Pro is made by ByteDance. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Qwen3.7-Plus compare to Seed 2.1 Pro in benchmarks?

Qwen3.7-Plus scores IFEval: 94.6%, MMLU-Redux: 94.5%, HMMT Feb 26: 92.9%, MRCR v2: 91.7%, OmniDocBench 1.5: 91.4%. Seed 2.1 Pro scores CharXiv-D: 95.5%, MathVision: 94.5%, MathVista: 90.7%, MathVerse: 89.7%, Video-MME: 89.2%.

What are the context window sizes for Qwen3.7-Plus and Seed 2.1 Pro?

Qwen3.7-Plus supports 1.0M tokens and Seed 2.1 Pro supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes Qwen3.7-Plus and Seed 2.1 Pro?

Qwen3.7-Plus is developed by Alibaba Cloud / Qwen Team and Seed 2.1 Pro is developed by ByteDance.

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