Model Comparison

Muse Spark 1.1 vs MiMo-V2.5Which is better in 2026?

Muse Spark 1.1 significantly outperforms across most benchmarks.

Verdict: Muse Spark 1.1 vs MiMo-V2.5 — which is better?

Muse Spark 1.1 (by Meta) 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.

Muse Spark 1.1 outperforms in 3 benchmarks (CharXiv-R, Finance Agent v2, SWE-Bench Pro), while MiMo-V2.5 is better at 0 benchmarks. Muse Spark 1.1 significantly outperforms across most benchmarks.

Choose Muse Spark 1.1 if…

  • you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
  • you want the most recent training data — it shipped Jul 2026

Choose MiMo-V2.5 if…

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

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Muse Spark 1.1 outperforms in 3 benchmarks (CharXiv-R, Finance Agent v2, SWE-Bench Pro), while MiMo-V2.5 is better at 0 benchmarks.

Muse Spark 1.1 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).

Meta
Muse Spark 1.1
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 Muse Spark 1.1 and MiMo-V2.5 support multimodal inputs.

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

Muse Spark 1.1

Text
Images
Audio
Video

MiMo-V2.5

Text
Images
Audio
Video

License

Usage and distribution terms

Muse Spark 1.1 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.

Muse Spark 1.1

Proprietary

Closed source

MiMo-V2.5

MIT

Open weights

Release Timeline

When each model was launched

Muse Spark 1.1 was released on 2026-07-09, while MiMo-V2.5 was released on 2026-04-22.

Muse Spark 1.1 is 3 months newer than MiMo-V2.5.

Muse Spark 1.1

Jul 9, 2026

1 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

Meta
Higher CharXiv-R score (88.4% vs 81.0%)
Higher Finance Agent v2 score (57.2% vs 36.7%)
Higher SWE-Bench Pro score (61.5% vs 56.1%)
Xiaomi
Larger context window (1,048,576 tokens)
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Muse Spark 1.1 and MiMo-V2.5 side-by-side, then vote on the output you prefer.

Muse Spark 1.1
✓ Preferred
MiMo-V2.5
Open in Playground
AI Model Comparison Table
Feature
Meta
Muse Spark 1.1
Xiaomi
MiMo-V2.5

FAQ

Common questions about Muse Spark 1.1 vs MiMo-V2.5.

Which is better, Muse Spark 1.1 or MiMo-V2.5?

Muse Spark 1.1 significantly outperforms across most benchmarks. Muse Spark 1.1 is made by Meta 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 Muse Spark 1.1 compare to MiMo-V2.5 in benchmarks?

Muse Spark 1.1 scores CharXiv-R: 88.4%, MCP Atlas: 88.1%, OSWorld-Verified: 80.8%, Terminal-Bench 2.1: 80.0%, BabyVision: 76.3%. 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 Muse Spark 1.1 and MiMo-V2.5?

Muse Spark 1.1 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 Muse Spark 1.1 and MiMo-V2.5?

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

Who makes Muse Spark 1.1 and MiMo-V2.5?

Muse Spark 1.1 is developed by Meta and MiMo-V2.5 is developed by Xiaomi.

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