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Gemini 3 Pro vs Mistral Medium 3.5

Gemini 3 Pro leads the LLM Stats Score 38.6 to 26.9. Mistral Medium 3.5 is 1.5x cheaper per token.

Google · Mistral AI · Updated for 2026

Which is better?

Gemini 3 Pro leads the overall LLM Stats Score 38.6 to 26.9, ranking #63 overall.

The models split the 2 individual benchmarks reported for both models evenly.

On price, Mistral Medium 3.5 is roughly 1.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3 Pro 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 Gemini 3 Pro

  • overall performance matters — it scores 38.6 and ranks #63 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you process long inputs — it offers a 1,048,576 token context window

Choose Mistral Medium 3.5

  • cost matters — it's about 1.5x cheaper per token
  • you want the most recent training data — it shipped Apr 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Gemini 3 Pro
Google
Mistral Medium 3.5
Mistral AI
Core performance indexes
LLM Stats Score
38.6
#63
26.9
#144
Reasoning
38.6
#60
27.3
#136
Coding
24.6
#71
23.7
#74
Agents
15.5
#85
9.2
#128
Cost, coverage & limits
Benchmark wins
1 of 2
1 of 2
Input price
$2.00 / M
$1.50 / M
Output price
$12.00 / M
$7.50 / M
Context window
1,048,576
256,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Gemini 3 Pro
Mistral Medium 3.5
Math
37.1#31
18.9#171
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

21 reported for Gemini 3 Pro · 11 for Mistral Medium 3.5

2 shared

Gemini 3 Pro outperforms in 1 benchmarks (AIME 2025), while Mistral Medium 3.5 is better at 1 benchmark (SWE-Bench Verified).

Both models are evenly matched across the benchmarks.

Mon Sep 14 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Mistral Medium 3.5 costs less

For input processing, Gemini 3 Pro ($2.00/1M tokens) is 1.3x more expensive than Mistral Medium 3.5 ($1.50/1M tokens).

For output processing, Gemini 3 Pro ($12.00/1M tokens) is 1.6x more expensive than Mistral Medium 3.5 ($7.50/1M tokens).

In conclusion, Gemini 3 Pro is more expensive than Mistral Medium 3.5.*

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

Lowest available price from all providers
Mon Sep 14 2026 • llm-stats.com
Google
Gemini 3 Pro
Input tokens$2.00
Output tokens$12.00
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 Pro 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 Pro is limited to 65,536 tokens.

Google
Gemini 3 Pro
Input1,048,576 tokens
Output65,536 tokens
Mistral AI
Mistral Medium 3.5
Input256,000 tokens
Output256,000 tokens
Mon Sep 14 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 3 Pro and Mistral Medium 3.5 support multimodal inputs.

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

Gemini 3 Pro

Text
Images
Audio
Video

Mistral Medium 3.5

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3 Pro 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 Pro

Proprietary

Closed source

Mistral Medium 3.5

Modified MIT License

Open weights

Release Timeline

When each model was launched

Gemini 3 Pro was released on 2025-11-18, while Mistral Medium 3.5 was released on 2026-04-29.

Mistral Medium 3.5 is 5 months newer than Gemini 3 Pro.

Gemini 3 Pro

Nov 18, 2025

10 months ago

Mistral Medium 3.5

Apr 29, 2026

4 months ago

5mo newer

Knowledge Cutoff

When training data ends

Gemini 3 Pro has a documented knowledge cutoff of 2025-01-31, while Mistral Medium 3.5's cutoff date is not specified.

We can confirm Gemini 3 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without Mistral Medium 3.5's cutoff date.

Gemini 3 Pro

Jan 2025

Mistral Medium 3.5

—

Provider Availability

Gemini 3 Pro is available from Google. Mistral Medium 3.5 is available from Mistral AI.

Gemini 3 Pro

google logo
Google
Input Price:Input: $2.00/1MOutput Price:Output: $12.00/1M

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→

Judge for yourself.

Run your own prompts against Gemini 3 Pro and Mistral Medium 3.5 side-by-side, then vote on the output you prefer.

Gemini 3 Pro
✓ Preferred
Mistral Medium 3.5
Open in Playground

FAQ

Common questions about Gemini 3 Pro vs Mistral Medium 3.5.

Which is better, Gemini 3 Pro or Mistral Medium 3.5?

Gemini 3 Pro leads the LLM Stats Score 38.6 to 26.9. Gemini 3 Pro is made by Google and Mistral Medium 3.5 is made by Mistral AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3 Pro compare to Mistral Medium 3.5 in benchmarks?

Gemini 3 Pro scores AIME 2025: 100.0%, Vending-Bench 2: 100.0%, Global PIQA: 93.4%, GPQA: 91.9%, MMMLU: 91.8%. 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 Pro cheaper than Mistral Medium 3.5?

Mistral Medium 3.5 is 1.3x cheaper for input tokens. Gemini 3 Pro costs $2.00/M input and $12.00/M output via google. Mistral Medium 3.5 costs $1.50/M input and $7.50/M output via mistral.

What are the context window sizes for Gemini 3 Pro and Mistral Medium 3.5?

Gemini 3 Pro 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 Pro and Mistral Medium 3.5?

Key differences include LLM Stats Score (38.6 vs 26.9), context window (1.0M vs 256K), input pricing ($2.00 vs $1.50/M), licensing (Proprietary vs Modified MIT License). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3 Pro and Mistral Medium 3.5?

Gemini 3 Pro is developed by Google and Mistral Medium 3.5 is developed by Mistral AI.

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