Model Comparison

Gemini 3.5 Flash vs Mistral Medium 3.5Which is better in 2026?

Gemini 3.5 Flash significantly outperforms across most benchmarks. Mistral Medium 3.5 is 1.1x cheaper per token.

Verdict: Gemini 3.5 Flash vs Mistral Medium 3.5 — which is better?

Gemini 3.5 Flash (by Google) 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.

Gemini 3.5 Flash outperforms in 2 benchmarks (Finance Agent v2, GDPval-AA), while Mistral Medium 3.5 is better at 0 benchmarks. Gemini 3.5 Flash significantly outperforms across most benchmarks.

On price, Mistral Medium 3.5 is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.5 Flash also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 3.5 Flash if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped May 2026

Choose Mistral Medium 3.5 if…

  • cost matters — it's about 1.1x cheaper per token
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Gemini 3.5 Flash outperforms in 2 benchmarks (Finance Agent v2, GDPval-AA), while Mistral Medium 3.5 is better at 0 benchmarks.

Gemini 3.5 Flash significantly outperforms across most benchmarks.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Mistral Medium 3.5 costs less

For input processing, Gemini 3.5 Flash ($1.50/1M tokens) costs the same as Mistral Medium 3.5 ($1.50/1M tokens).

For output processing, Gemini 3.5 Flash ($9.00/1M tokens) is 1.2x more expensive than Mistral Medium 3.5 ($7.50/1M tokens).

In conclusion, Gemini 3.5 Flash is more expensive than Mistral Medium 3.5.*

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

Lowest available price from all providers
Fri Jul 17 2026 • llm-stats.com
Google
Gemini 3.5 Flash
Input tokens$1.50
Output tokens$9.00
Best providerGoogle
Mistral AI
Mistral Medium 3.5
Input tokens$1.50
Output tokens$7.50
Best providerMistral
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.5 Flash 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 Gemini 3.5 Flash is limited to 65,536 tokens.

Google
Gemini 3.5 Flash
Input1,048,576 tokens
Output65,536 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 Gemini 3.5 Flash and Mistral Medium 3.5 support multimodal inputs.

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

Gemini 3.5 Flash

Text
Images
Audio
Video

Mistral Medium 3.5

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3.5 Flash 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.

Gemini 3.5 Flash

Proprietary

Closed source

Mistral Medium 3.5

Modified MIT License

Open weights

Release Timeline

When each model was launched

Gemini 3.5 Flash was released on 2026-05-19, while Mistral Medium 3.5 was released on 2026-04-29.

Gemini 3.5 Flash is 1 month newer than Mistral Medium 3.5.

Gemini 3.5 Flash

May 19, 2026

1 months ago

2w newer
Mistral Medium 3.5

Apr 29, 2026

2 months ago

Knowledge Cutoff

When training data ends

Gemini 3.5 Flash has a documented knowledge cutoff of 2026-01-31, while Mistral Medium 3.5's cutoff date is not specified.

We can confirm Gemini 3.5 Flash's training data extends to 2026-01-31, but cannot make a direct comparison without Mistral Medium 3.5's cutoff date.

Gemini 3.5 Flash

Jan 2026

Mistral Medium 3.5

—

Provider Availability

Gemini 3.5 Flash is available from Google. Mistral Medium 3.5 is available from Mistral AI.

Gemini 3.5 Flash

google logo
Google
Input Price:Input: $1.50/1MOutput Price:Output: $9.00/1M

Mistral Medium 3.5

mistral logo
Mistral
Input Price:Input: $1.50/1MOutput Price:Output: $7.50/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (1,048,576 tokens)
Higher Finance Agent v2 score (57.9% vs 32.1%)
Higher GDPval-AA score (45.7% vs 30.9%)
Mistral AI
Less expensive output tokens
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

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

Gemini 3.5 Flash
✓ Preferred
Mistral Medium 3.5
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 3.5 Flash
Mistral AI
Mistral Medium 3.5

FAQ

Common questions about Gemini 3.5 Flash vs Mistral Medium 3.5.

Which is better, Gemini 3.5 Flash or Mistral Medium 3.5?

Gemini 3.5 Flash significantly outperforms across most benchmarks. Gemini 3.5 Flash is made by Google 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 Gemini 3.5 Flash compare to Mistral Medium 3.5 in benchmarks?

Gemini 3.5 Flash scores CharXiv-R: 84.2%, MCP Atlas: 83.6%, MMMU-Pro: 83.6%, OSWorld-Verified: 78.4%, Terminal-Bench 2.0: 76.2%. 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%.

Is Gemini 3.5 Flash cheaper than Mistral Medium 3.5?

Both models cost $1.50 per million input tokens.

What are the context window sizes for Gemini 3.5 Flash and Mistral Medium 3.5?

Gemini 3.5 Flash supports 1.0M 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 Gemini 3.5 Flash and Mistral Medium 3.5?

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

Who makes Gemini 3.5 Flash and Mistral Medium 3.5?

Gemini 3.5 Flash is developed by Google and Mistral Medium 3.5 is developed by Mistral AI.

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