Model Comparison

Mistral Medium 3.5 vs Muse Spark 1.1Which is better in 2026?

Muse Spark 1.1 significantly outperforms across most benchmarks. Muse Spark 1.1 is 1.5x cheaper per token.

Verdict: Mistral Medium 3.5 vs Muse Spark 1.1 — which is better?

Mistral Medium 3.5 (by Mistral AI) and Muse Spark 1.1 (by Meta) 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.

Mistral Medium 3.5 outperforms in 0 benchmarks, while Muse Spark 1.1 is better at 1 benchmark (Finance Agent v2). Muse Spark 1.1 significantly outperforms across most benchmarks.

On price, Muse Spark 1.1 is roughly 1.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Muse Spark 1.1 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Mistral Medium 3.5 if…

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

Choose Muse Spark 1.1 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • cost matters — it's about 1.5x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Jul 2026

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Mistral Medium 3.5 outperforms in 0 benchmarks, while Muse Spark 1.1 is better at 1 benchmark (Finance Agent v2).

Muse Spark 1.1 significantly outperforms across most benchmarks.

Tue Jul 28 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Muse Spark 1.1 costs less

For input processing, Mistral Medium 3.5 ($1.50/1M tokens) is 1.2x more expensive than Muse Spark 1.1 ($1.25/1M tokens).

For output processing, Mistral Medium 3.5 ($7.50/1M tokens) is 1.8x more expensive than Muse Spark 1.1 ($4.25/1M tokens).

In conclusion, Mistral Medium 3.5 is more expensive than Muse Spark 1.1.*

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

Lowest available price from all providers
Tue Jul 28 2026 • llm-stats.com
Mistral AI
Mistral Medium 3.5
Input tokens$1.50
Output tokens$7.50
Best providerMistral
Meta
Muse Spark 1.1
Input tokens$1.25
Output tokens$4.25
Best providerMeta
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Muse Spark 1.1 accepts 1,048,576 input tokens compared to Mistral Medium 3.5's 256,000 tokens. Mistral Medium 3.5 can generate longer responses up to 256,000 tokens, while Muse Spark 1.1 is limited to 131,072 tokens.

Mistral AI
Mistral Medium 3.5
Input256,000 tokens
Output256,000 tokens
Meta
Muse Spark 1.1
Input1,048,576 tokens
Output131,072 tokens
Tue Jul 28 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Mistral Medium 3.5 and Muse Spark 1.1 support multimodal inputs.

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

Mistral Medium 3.5

Text
Images
Audio
Video

Muse Spark 1.1

Text
Images
Audio
Video

License

Usage and distribution terms

Mistral Medium 3.5 is licensed under Modified MIT License, while Muse Spark 1.1 uses a proprietary license.

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

Mistral Medium 3.5

Modified MIT License

Open weights

Muse Spark 1.1

Proprietary

Closed source

Release Timeline

When each model was launched

Mistral Medium 3.5 was released on 2026-04-29, while Muse Spark 1.1 was released on 2026-07-09.

Muse Spark 1.1 is 2 months newer than Mistral Medium 3.5.

Mistral Medium 3.5

Apr 29, 2026

3 months ago

Muse Spark 1.1

Jul 9, 2026

2 weeks ago

2mo 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

Mistral Medium 3.5 is available from Mistral AI. Muse Spark 1.1 is available from Meta Model API.

Mistral Medium 3.5

mistral logo
Mistral
Input Price:Input: $1.50/1MOutput Price:Output: $7.50/1M

Muse Spark 1.1

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

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Mistral AI
Has open weights
Meta
Larger context window (1,048,576 tokens)
Less expensive input tokens
Less expensive output tokens
Higher Finance Agent v2 score (57.2% vs 32.1%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Mistral Medium 3.5 and Muse Spark 1.1 side-by-side, then vote on the output you prefer.

Mistral Medium 3.5
✓ Preferred
Muse Spark 1.1
Open in Playground
AI Model Comparison Table
Feature
Mistral AI
Mistral Medium 3.5
Meta
Muse Spark 1.1

FAQ

Common questions about Mistral Medium 3.5 vs Muse Spark 1.1.

Which is better, Mistral Medium 3.5 or Muse Spark 1.1?

Muse Spark 1.1 significantly outperforms across most benchmarks. Mistral Medium 3.5 is made by Mistral AI and Muse Spark 1.1 is made by Meta. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Mistral Medium 3.5 compare to Muse Spark 1.1 in benchmarks?

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%. 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%.

Is Mistral Medium 3.5 cheaper than Muse Spark 1.1?

Muse Spark 1.1 is 1.2x cheaper for input tokens. Mistral Medium 3.5 costs $1.50/M input and $7.50/M output via mistral. Muse Spark 1.1 costs $1.25/M input and $4.25/M output via meta.

What are the context window sizes for Mistral Medium 3.5 and Muse Spark 1.1?

Mistral Medium 3.5 supports 256K tokens and Muse Spark 1.1 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 Mistral Medium 3.5 and Muse Spark 1.1?

Key differences include context window (256K vs 1.0M), input pricing ($1.50 vs $1.25/M), licensing (Modified MIT License vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Mistral Medium 3.5 and Muse Spark 1.1?

Mistral Medium 3.5 is developed by Mistral AI and Muse Spark 1.1 is developed by Meta.

Related comparisons