Model Comparison

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

Both models are evenly matched across the benchmarks.

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

Muse Spark (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 outperforms in 2 benchmarks (CharXiv-R, MMMU-Pro), while MiMo-V2.5 is better at 2 benchmarks (SWE-Bench Pro, Terminal-Bench 2.0). Both models are evenly matched across the benchmarks.

Choose Muse Spark if…

  • you are already invested in the Meta ecosystem

Choose MiMo-V2.5 if…

  • you want the most recent training data — it shipped Apr 2026
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Muse Spark outperforms in 2 benchmarks (CharXiv-R, MMMU-Pro), while MiMo-V2.5 is better at 2 benchmarks (SWE-Bench Pro, Terminal-Bench 2.0).

Both models are evenly matched across the 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
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 and MiMo-V2.5 support multimodal inputs.

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

Muse Spark

Text
Images
Audio
Video

MiMo-V2.5

Text
Images
Audio
Video

License

Usage and distribution terms

Muse Spark 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

Proprietary

Closed source

MiMo-V2.5

MIT

Open weights

Release Timeline

When each model was launched

Muse Spark was released on 2026-04-08, while MiMo-V2.5 was released on 2026-04-22.

MiMo-V2.5 is 0 month newer than Muse Spark.

Muse Spark

Apr 8, 2026

3 months ago

MiMo-V2.5

Apr 22, 2026

2 months ago

2w 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

Meta
Higher CharXiv-R score (86.4% vs 81.0%)
Higher MMMU-Pro score (80.4% vs 77.9%)
Xiaomi
Larger context window (1,048,576 tokens)
Has open weights
Higher SWE-Bench Pro score (56.1% vs 52.4%)
Higher Terminal-Bench 2.0 score (65.8% vs 59.0%)

Detailed Comparison

Interactive Arena

Judge for yourself.

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

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

FAQ

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

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

Both models are evenly matched across the benchmarks. Muse Spark 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 compare to MiMo-V2.5 in benchmarks?

Muse Spark scores Tau2 Telecom: 91.5%, GPQA: 89.5%, CharXiv-R: 86.4%, ScreenSpot Pro: 84.1%, IPhO 2025: 82.6%. 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 and MiMo-V2.5?

Muse Spark 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 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 and MiMo-V2.5?

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

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