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MiMo-V2.5 vs Muse Spark Open

Muse Spark Open leads the LLM Stats Score 44.9 to 35.9. MiMo-V2.5 is 9.5x cheaper per token.

Xiaomi · Meta · Updated for 2026

Which is better?

Muse Spark Open leads the overall LLM Stats Score 44.9 to 35.9, ranking #43 overall.

On price, MiMo-V2.5 is roughly 9.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

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

Choose MiMo-V2.5

  • cost matters — it's about 9.5x cheaper per token

Choose Muse Spark Open

  • overall performance matters — it scores 44.9 and ranks #43 on LLM Stats
  • your work emphasizes reasoning and agents — it leads those capability indexes
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

MiMo-V2.5
Xiaomi
Muse Spark Open
Meta
Core performance indexes
LLM Stats Score
35.9
#100
44.9
#43
Reasoning
35.5
#97
45.2
#39
Coding
28.8
#68
33.0
#42
Agents
21.1
#79
30.6
#43
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.17 / M
$1.25 / M
Output price
$0.34 / M
$4.25 / M
Context window
1,048,576
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
MiMo-V2.5
Muse Spark Open
Vision
23.7#70
31.2#34
Multimodal
25.7#56
33.1#20
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

14 reported for MiMo-V2.5 · 17 for Muse Spark Open

No common benchmarks found

MiMo-V2.5 and Muse Spark Opendon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

MiMo-V2.5 costs less

For input processing, MiMo-V2.5 ($0.17/1M tokens) is 7.4x cheaper than Muse Spark Open ($1.25/1M tokens).

For output processing, MiMo-V2.5 ($0.34/1M tokens) is 12.6x cheaper than Muse Spark Open ($4.25/1M tokens).

In conclusion, Muse Spark Open is more expensive than MiMo-V2.5.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Oct 20 2026 • llm-stats.com
Xiaomi
MiMo-V2.5
Input tokens$0.17
Output tokens$0.34
Best providerNovita
Meta
Muse Spark Open
Input tokens$1.25
Output tokens$4.25
Best providerTogether
Notice missing or incorrect data?

Model Size

Parameter count comparison

505.2B diff

Muse Spark Open has 505.2B more parameters than MiMo-V2.5, making it 162.6% larger.

Xiaomi
MiMo-V2.5
310.8Bparameters
Meta
Muse Spark Open
816.0Bparameters
310.8B
MiMo-V2.5
816.0B
Muse Spark Open

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,048,576 tokens. Muse Spark Open can generate longer responses up to 1,048,576 tokens, while MiMo-V2.5 is limited to 131,072 tokens.

Xiaomi
MiMo-V2.5
Input1,048,576 tokens
Output131,072 tokens
Meta
Muse Spark Open
Input1,048,576 tokens
Output1,048,576 tokens
Tue Oct 20 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both MiMo-V2.5 and Muse Spark Open support multimodal inputs.

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

MiMo-V2.5

Text
Images
Audio
Video

Muse Spark Open

Text
Images
Audio
Video

License

Usage and distribution terms

MiMo-V2.5 is licensed under MIT, while Muse Spark Open uses Muse Model License.

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

MiMo-V2.5

MIT

Open weights

Muse Spark Open

Muse Model License

Open weights

Release Timeline

When each model was launched

MiMo-V2.5 was released on 2026-04-22, while Muse Spark Open was released on 2026-10-15.

Muse Spark Open is 6 months newer than MiMo-V2.5.

MiMo-V2.5

Apr 22, 2026

6 months ago

Muse Spark Open

Oct 15, 2026

5 days ago

5mo 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

Provider Availability

MiMo-V2.5 is available from Novita, DeepInfra. Muse Spark Open is available from Together.

MiMo-V2.5

novita logo
Novita
Input Price:Input: $0.17/1MOutput Price:Output: $0.34/1M
deepinfra logo
Deepinfra
Input Price:Input: $0.40/1MOutput Price:Output: $2.00/1M

Muse Spark Open

together logo
Together
Input Price:Input: $1.25/1MOutput Price:Output: $4.25/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

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

MiMo-V2.5
✓ Preferred
Muse Spark Open
Open in Playground

FAQ

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

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

Muse Spark Open leads the LLM Stats Score 44.9 to 35.9. MiMo-V2.5 is made by Xiaomi and Muse Spark Open is made by Meta. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does MiMo-V2.5 compare to Muse Spark Open in benchmarks?

MiMo-V2.5 scores HR-Bench (4k): 88.5%, Video-MME: 87.7%, OmniDocBench: 87.2%, GraphWalks: 87.0%, DailyOmni: 83.5%. Muse Spark Open scores MCP Atlas: 89.2%, GPQA: 89.0%, OSWorld-Verified: 80.4%, BabyVision: 80.2%, Terminal-Bench 2.1: 76.4%.

Is MiMo-V2.5 cheaper than Muse Spark Open?

MiMo-V2.5 is 7.4x cheaper for input tokens. MiMo-V2.5 costs $0.17/M input and $0.34/M output via novita. Muse Spark Open costs $1.25/M input and $4.25/M output via together.

What are the context window sizes for MiMo-V2.5 and Muse Spark Open?

MiMo-V2.5 supports 1.0M tokens and Muse Spark Open 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 MiMo-V2.5 and Muse Spark Open?

Key differences include LLM Stats Score (35.9 vs 44.9), input pricing ($0.17 vs $1.25/M), licensing (MIT vs Muse Model License). See the full comparison above for benchmark-by-benchmark results.

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

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

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