Model Comparison

Seed 2.1 Turbo vs MiMo-V2.5Which is better in 2026?

Seed 2.1 Turbo significantly outperforms across most benchmarks.

Verdict: Seed 2.1 Turbo vs MiMo-V2.5 — which is better?

Seed 2.1 Turbo (by ByteDance) and MiMo-V2.5 (by Xiaomi) 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.

Seed 2.1 Turbo outperforms in 5 benchmarks (CharXiv-R, MMMU-Pro, SWE-Bench Pro, VideoHolmes, Video-MME), while MiMo-V2.5 is better at 0 benchmarks. Seed 2.1 Turbo significantly outperforms across most benchmarks.

Choose Seed 2.1 Turbo if…

  • you want the strongest raw capability — it leads on 5 of 5 shared benchmarks
  • you want the most recent training data — it shipped Jun 2026

Choose MiMo-V2.5 if…

  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Seed 2.1 Turbo outperforms in 5 benchmarks (CharXiv-R, MMMU-Pro, SWE-Bench Pro, VideoHolmes, Video-MME), while MiMo-V2.5 is better at 0 benchmarks.

Seed 2.1 Turbo significantly outperforms across most benchmarks.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only MiMo-V2.5 specifies input context (1,048,576 tokens). Only MiMo-V2.5 specifies output context (131,072 tokens).

ByteDance
Seed 2.1 Turbo
Input- tokens
Output- tokens
Xiaomi
MiMo-V2.5
Input1,048,576 tokens
Output131,072 tokens
Fri Jul 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Seed 2.1 Turbo and MiMo-V2.5 support multimodal inputs.

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

Seed 2.1 Turbo

Text
Images
Audio
Video

MiMo-V2.5

Text
Images
Audio
Video

License

Usage and distribution terms

Seed 2.1 Turbo is licensed under a proprietary license, while MiMo-V2.5 uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Seed 2.1 Turbo

Proprietary

Closed source

MiMo-V2.5

MIT

Open weights

Release Timeline

When each model was launched

Seed 2.1 Turbo was released on 2026-06-24, while MiMo-V2.5 was released on 2026-04-22.

Seed 2.1 Turbo is 2 months newer than MiMo-V2.5.

Seed 2.1 Turbo

Jun 24, 2026

3 weeks ago

2mo newer
MiMo-V2.5

Apr 22, 2026

2 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?Start an Issue discussion→

Key Takeaways

ByteDance
Higher CharXiv-R score (83.6% vs 81.0%)
Higher MMMU-Pro score (82.2% vs 77.9%)
Higher SWE-Bench Pro score (57.0% vs 56.1%)
Higher VideoHolmes score (67.6% vs 64.0%)
Higher Video-MME score (89.0% vs 87.7%)
Xiaomi
Larger context window (1,048,576 tokens)
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Seed 2.1 Turbo and MiMo-V2.5 side-by-side, then vote on the output you prefer.

Seed 2.1 Turbo
✓ Preferred
MiMo-V2.5
Open in Playground
AI Model Comparison Table
Feature
ByteDance
Seed 2.1 Turbo
Xiaomi
MiMo-V2.5

FAQ

Common questions about Seed 2.1 Turbo vs MiMo-V2.5.

Which is better, Seed 2.1 Turbo or MiMo-V2.5?

Seed 2.1 Turbo significantly outperforms across most benchmarks. Seed 2.1 Turbo is made by ByteDance and MiMo-V2.5 is made by Xiaomi. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Seed 2.1 Turbo compare to MiMo-V2.5 in benchmarks?

Seed 2.1 Turbo scores CharXiv-D: 94.6%, MathVision: 92.7%, MathVista: 90.5%, MathVerse: 89.2%, Video-MME: 89.0%. MiMo-V2.5 scores HR-Bench (4k): 88.5%, Video-MME: 87.7%, OmniDocBench: 87.2%, GraphWalks: 87.0%, DailyOmni: 83.5%.

What are the context window sizes for Seed 2.1 Turbo and MiMo-V2.5?

Seed 2.1 Turbo supports an unknown number of tokens and MiMo-V2.5 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Seed 2.1 Turbo and MiMo-V2.5?

Key differences include licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Seed 2.1 Turbo and MiMo-V2.5?

Seed 2.1 Turbo is developed by ByteDance and MiMo-V2.5 is developed by Xiaomi.

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