Devstral Small 1.1 vs Gemini 3.1 Pro Comparison

Comparing Devstral Small 1.1 and Gemini 3.1 Pro across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Devstral Small 1.1 outperforms in 0 benchmarks, while Gemini 3.1 Pro is better at 1 benchmark (SWE-Bench Verified).

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Mon Mar 16 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Devstral Small 1.1 costs less

For input processing, Devstral Small 1.1 ($0.10/1M tokens) is 25.0x cheaper than Gemini 3.1 Pro ($2.50/1M tokens).

For output processing, Devstral Small 1.1 ($0.30/1M tokens) is 50.0x cheaper than Gemini 3.1 Pro ($15.00/1M tokens).

In conclusion, Gemini 3.1 Pro is more expensive than Devstral Small 1.1.*

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

Lowest available price from all providers

Mon Mar 16 2026 • llm-stats.com

Devstral Small 1.1

Input tokens$0.10

Output tokens$0.30

Best providerMistral

Gemini 3.1 Pro

Input tokens$2.50

Output tokens$15.00

Best providerGoogle

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Context Window

Maximum input and output token capacity

Gemini 3.1 Pro accepts 1,048,576 input tokens compared to Devstral Small 1.1's 128,000 tokens. Devstral Small 1.1 can generate longer responses up to 128,000 tokens, while Gemini 3.1 Pro is limited to 65,536 tokens.

Devstral Small 1.1

Input128,000 tokens

Output128,000 tokens

Gemini 3.1 Pro

Input1,048,576 tokens

Output65,536 tokens

Mon Mar 16 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 3.1 Pro supports multimodal inputs, whereas Devstral Small 1.1 does not.

Gemini 3.1 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Devstral Small 1.1

Text

Images

Audio

Video

Gemini 3.1 Pro

Text

Images

Audio

Video

License

Usage and distribution terms

Devstral Small 1.1 is licensed under Apache 2.0, while Gemini 3.1 Pro uses a proprietary license.

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

Devstral Small 1.1

Apache 2.0

Open weights

Gemini 3.1 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Devstral Small 1.1 was released on 2025-07-11, while Gemini 3.1 Pro was released on 2026-02-19.

Gemini 3.1 Pro is 7 months newer than Devstral Small 1.1.

Devstral Small 1.1

Jul 11, 2025

8 months ago

Gemini 3.1 Pro

Feb 19, 2026

3 weeks ago

7mo newer

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a documented knowledge cutoff of 2025-01-31, while Devstral Small 1.1's cutoff date is not specified.

We can confirm Gemini 3.1 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without Devstral Small 1.1's cutoff date.

Devstral Small 1.1

—

Gemini 3.1 Pro

Jan 2025

Provider Availability

Devstral Small 1.1 is available from Mistral AI. Gemini 3.1 Pro is available from Google. The availability of providers can affect quality of the model and reliability.