Model Comparison

Muse Spark vs Mistral Medium 3.5Which is better in 2026?

Both models are evenly matched across the benchmarks.

Verdict: Muse Spark vs Mistral Medium 3.5 — which is better?

Muse Spark (by Meta) and Mistral Medium 3.5 (by Mistral AI) 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 1 benchmarks (GDPval-AA), while Mistral Medium 3.5 is better at 1 benchmark (SWE-Bench Verified). Both models are evenly matched across the benchmarks.

Choose Muse Spark if…

  • you are already invested in the Meta ecosystem

Choose Mistral Medium 3.5 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

2 benchmarks

Muse Spark outperforms in 1 benchmarks (GDPval-AA), while Mistral Medium 3.5 is better at 1 benchmark (SWE-Bench Verified).

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 Mistral Medium 3.5 specifies input context (256,000 tokens). Only Mistral Medium 3.5 specifies output context (256,000 tokens).

Meta
Muse Spark
Input- tokens
Output- tokens
Mistral AI
Mistral Medium 3.5
Input256,000 tokens
Output256,000 tokens
Fri Jul 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Muse Spark and Mistral Medium 3.5 support multimodal inputs.

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

Muse Spark

Text
Images
Audio
Video

Mistral Medium 3.5

Text
Images
Audio
Video

License

Usage and distribution terms

Muse Spark is licensed under a proprietary license, while Mistral Medium 3.5 uses Modified MIT License.

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

Muse Spark

Proprietary

Closed source

Mistral Medium 3.5

Modified MIT License

Open weights

Release Timeline

When each model was launched

Muse Spark was released on 2026-04-08, while Mistral Medium 3.5 was released on 2026-04-29.

Mistral Medium 3.5 is 1 month newer than Muse Spark.

Muse Spark

Apr 8, 2026

3 months ago

Mistral Medium 3.5

Apr 29, 2026

2 months ago

3w 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 GDPval-AA score (38.8% vs 30.9%)
Mistral AI
Larger context window (256,000 tokens)
Has open weights
Higher SWE-Bench Verified score (77.6% vs 77.4%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Muse Spark and Mistral Medium 3.5 side-by-side, then vote on the output you prefer.

Muse Spark
✓ Preferred
Mistral Medium 3.5
Open in Playground
AI Model Comparison Table
Feature
Meta
Muse Spark
Mistral AI
Mistral Medium 3.5

FAQ

Common questions about Muse Spark vs Mistral Medium 3.5.

Which is better, Muse Spark or Mistral Medium 3.5?

Both models are evenly matched across the benchmarks. Muse Spark is made by Meta and Mistral Medium 3.5 is made by Mistral AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Muse Spark compare to Mistral Medium 3.5 in benchmarks?

Muse Spark scores Tau2 Telecom: 91.5%, GPQA: 89.5%, CharXiv-R: 86.4%, ScreenSpot Pro: 84.1%, IPhO 2025: 82.6%. Mistral Medium 3.5 scores COLLIE: 95.8%, Tau3 Telecom: 91.4%, AIME 2025: 86.3%, SWE-Bench Verified: 77.6%, Tau3 Retail: 76.1%.

What are the context window sizes for Muse Spark and Mistral Medium 3.5?

Muse Spark supports an unknown number of tokens and Mistral Medium 3.5 supports 256K 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 Mistral Medium 3.5?

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

Who makes Muse Spark and Mistral Medium 3.5?

Muse Spark is developed by Meta and Mistral Medium 3.5 is developed by Mistral AI.

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