Devstral Medium vs Gemini 3.1 Pro Comparison

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

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Devstral Medium 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.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Devstral Medium costs less

For input processing, Devstral Medium ($0.40/1M tokens) is 6.3x cheaper than Gemini 3.1 Pro ($2.50/1M tokens).

For output processing, Devstral Medium ($2.00/1M tokens) is 7.5x cheaper than Gemini 3.1 Pro ($15.00/1M tokens).

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

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

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Devstral Medium

Input tokens$0.40

Output tokens$2.00

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 Medium's 128,000 tokens. Devstral Medium can generate longer responses up to 128,000 tokens, while Gemini 3.1 Pro is limited to 65,536 tokens.

Devstral Medium

Input128,000 tokens

Output128,000 tokens

Gemini 3.1 Pro

Input1,048,576 tokens

Output65,536 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

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

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

Devstral Medium

Text

Images

Audio

Video

Gemini 3.1 Pro

Text

Images

Audio

Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Devstral Medium

Proprietary

Closed source

Gemini 3.1 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Devstral Medium was released on 2025-07-10, while Gemini 3.1 Pro was released on 2026-02-19.

Gemini 3.1 Pro is 7 months newer than Devstral Medium.

Devstral Medium

Jul 10, 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 Medium'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 Medium's cutoff date.

Devstral Medium

—

Gemini 3.1 Pro

Jan 2025

Provider Availability

Devstral Medium 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.