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MiMo-V2-Flash vs Muse Spark Open

Muse Spark Open leads the LLM Stats Score 44.9 to 30.5. MiMo-V2-Flash is 13.3x cheaper per token.

Xiaomi · Meta · Updated for 2026

Which is better?

Muse Spark Open leads the overall LLM Stats Score 44.9 to 30.5, ranking #43 overall.

In the 1 individual benchmarks reported for both models, Muse Spark Open wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, MiMo-V2-Flash is roughly 13.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Muse Spark Open also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose MiMo-V2-Flash

  • cost matters — it's about 13.3x 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 coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Core performance indexes
30.5
#139
44.9
#43
30.6
#135
45.2
#39
17.4
#138
33.0
#42
8.0
#156
30.6
#43
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$0.10 / M
$1.25 / M
Output price
$0.30 / M
$4.25 / M
Context window
256,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
MiMo-V2-Flash
Muse Spark Open
29.2#92
31.6#69
6.2#164
23.3#44
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

15 reported for MiMo-V2-Flash · 17 for Muse Spark Open

1 shared

MiMo-V2-Flash outperforms in 0 benchmarks, while Muse Spark Open is better at 1 benchmark (GPQA).

Muse Spark Open significantly outperforms across most benchmarks.

Tue Oct 20 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

MiMo-V2-Flash costs less

For input processing, MiMo-V2-Flash ($0.10/1M tokens) is 12.5x cheaper than Muse Spark Open ($1.25/1M tokens).

For output processing, MiMo-V2-Flash ($0.30/1M tokens) is 14.2x cheaper than Muse Spark Open ($4.25/1M tokens).

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

* 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-Flash
Input tokens$0.10
Output tokens$0.30
Best providerXiaomi
Meta
Muse Spark Open
Input tokens$1.25
Output tokens$4.25
Best providerTogether
Notice missing or incorrect data?

Model Size

Parameter count comparison

507.0B diff

Muse Spark Open has 507.0B more parameters than MiMo-V2-Flash, making it 164.1% larger.

Xiaomi
MiMo-V2-Flash
309.0Bparameters
Meta
Muse Spark Open
816.0Bparameters
309.0B
MiMo-V2-Flash
816.0B
Muse Spark Open

Context Window

Maximum input and output token capacity

Muse Spark Open accepts 1,048,576 input tokens compared to MiMo-V2-Flash's 256,000 tokens. Muse Spark Open can generate longer responses up to 1,048,576 tokens, while MiMo-V2-Flash is limited to 16,384 tokens.

Xiaomi
MiMo-V2-Flash
Input256,000 tokens
Output16,384 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

Muse Spark Open supports multimodal inputs, whereas MiMo-V2-Flash does not.

Muse Spark Open can handle both text and other forms of data like images, making it suitable for multimodal applications.

MiMo-V2-Flash

Text
Images
Audio
Video

Muse Spark Open

Text
Images
Audio
Video

License

Usage and distribution terms

MiMo-V2-Flash 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-Flash

MIT

Open weights

Muse Spark Open

Muse Model License

Open weights

Release Timeline

When each model was launched

MiMo-V2-Flash was released on 2025-12-16, while Muse Spark Open was released on 2026-10-15.

Muse Spark Open is 10 months newer than MiMo-V2-Flash.

MiMo-V2-Flash

Dec 16, 2025

10 months ago

Muse Spark Open

Oct 15, 2026

4 days ago

10mo 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-Flash is available from Xiaomi. Muse Spark Open is available from Together.

MiMo-V2-Flash

xiaomi logo
Xiaomi
Input Price:Input: $0.10/1MOutput Price:Output: $0.30/1M

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-Flash and Muse Spark Open side-by-side, then vote on the output you prefer.

MiMo-V2-Flash
✓ Preferred
Muse Spark Open
Open in Playground

FAQ

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

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

Muse Spark Open leads the LLM Stats Score 44.9 to 30.5. MiMo-V2-Flash 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-Flash compare to Muse Spark Open in benchmarks?

MiMo-V2-Flash scores AIME 2025: 94.1%, Arena-Hard v2: 86.2%, MMLU-Pro: 84.9%, HMMT 2025: 84.4%, GPQA: 83.7%. 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-Flash cheaper than Muse Spark Open?

MiMo-V2-Flash is 12.5x cheaper for input tokens. MiMo-V2-Flash costs $0.10/M input and $0.30/M output via xiaomi. Muse Spark Open costs $1.25/M input and $4.25/M output via together.

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

MiMo-V2-Flash supports 256K 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-Flash and Muse Spark Open?

Key differences include LLM Stats Score (30.5 vs 44.9), context window (256K vs 1.0M), input pricing ($0.10 vs $1.25/M), multimodal support (no vs yes), licensing (MIT vs Muse Model License). See the full comparison above for benchmark-by-benchmark results.

Who makes MiMo-V2-Flash and Muse Spark Open?

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