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Qwen3.8 Omni Flash vs Seed 2.1 Pro

Qwen3.8 Omni Flash and Seed 2.1 Pro are closely matched at 37.8 and 45.8 on the LLM Stats Score.

Alibaba Cloud / Qwen Team · ByteDance · Updated for 2026

Which is better?

Qwen3.8 Omni Flash and Seed 2.1 Pro are closely matched on the overall LLM Stats Score at 37.8 and 45.8.

In the 1 individual benchmarks reported for both models, Qwen3.8 Omni Flash wins 1; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Qwen3.8 Omni Flash

  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Sep 2026

Choose Seed 2.1 Pro

  • you are already invested in the ByteDance ecosystem

At a glance

The differences that matter most.

Qwen3.8 Omni Flash
Alibaba Cloud / Qwen Team
Seed 2.1 Pro
ByteDance
Core performance indexes
LLM Stats Score
37.8
#79
45.8
#35
Reasoning
32.2
#117
47.1
#29
Agents
21.0
#73
30.9
#36
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Individual benchmarks

5 reported for Qwen3.8 Omni Flash · 94 for Seed 2.1 Pro

1 shared

Qwen3.8 Omni Flash outperforms in 1 benchmarks (WildClawBench), while Seed 2.1 Pro is better at 0 benchmarks.

Qwen3.8 Omni Flash significantly outperforms across most benchmarks.

Thu Oct 08 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Input capabilities

Documented input modalities across available providers

Both Qwen3.8 Omni Flash and Seed 2.1 Pro support multimodal inputs.

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

Qwen3.8 Omni Flash

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.

Qwen3.8 Omni Flash

Proprietary

Closed source

Seed 2.1 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Qwen3.8 Omni Flash was released on 2026-09-18, while Seed 2.1 Pro was released on 2026-06-24.

Qwen3.8 Omni Flash is 3 months newer than Seed 2.1 Pro.

Qwen3.8 Omni Flash

Sep 18, 2026

2 weeks ago

2mo newer
Seed 2.1 Pro

Jun 24, 2026

3 months ago

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?

Judge for yourself.

Run your own prompts against Qwen3.8 Omni Flash and Seed 2.1 Pro side-by-side, then vote on the output you prefer.

Qwen3.8 Omni Flash
✓ Preferred
Seed 2.1 Pro
Open in Playground

FAQ

Common questions about Qwen3.8 Omni Flash vs Seed 2.1 Pro.

Which is better, Qwen3.8 Omni Flash or Seed 2.1 Pro?

Qwen3.8 Omni Flash and Seed 2.1 Pro are closely matched on the LLM Stats Score at 37.8 and 45.8. Qwen3.8 Omni Flash 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 capability indexes, individual benchmarks, pricing, and limits above.

How does Qwen3.8 Omni Flash compare to Seed 2.1 Pro in benchmarks?

Qwen3.8 Omni Flash scores VoiceBench Avg: 91.6%, DailyOmni: 85.1%, MMAU: 81.8%, OmniGAIA: 74.0%, WildClawBench: 71.0%. 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 main differences between Qwen3.8 Omni Flash and Seed 2.1 Pro?

Key differences include LLM Stats Score (37.8 vs 45.8). See the full comparison above for benchmark-by-benchmark results.

Who makes Qwen3.8 Omni Flash and Seed 2.1 Pro?

Qwen3.8 Omni Flash is developed by Alibaba Cloud / Qwen Team and Seed 2.1 Pro is developed by ByteDance.

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