Devstral Medium vs Gemini 3 Flash
Gemini 3 Flash significantly outperforms across most benchmarks. Devstral Medium is 1.4x cheaper per token.
Mistral AI · Google · Updated for 2026
Which is better?
Devstral Medium outperforms in 0 benchmarks, while Gemini 3 Flash is better at 1 benchmark (SWE-Bench Verified). Gemini 3 Flash significantly outperforms across most benchmarks.
On price, Devstral Medium is roughly 1.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Gemini 3 Flash also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Devstral Medium
- cost matters — it's about 1.4x cheaper per token
Choose Gemini 3 Flash
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Dec 2025
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Devstral Medium outperforms in 0 benchmarks, while Gemini 3 Flash is better at 1 benchmark (SWE-Bench Verified).
Gemini 3 Flash significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Devstral Medium ($0.40/1M tokens) is 1.3x cheaper than Gemini 3 Flash ($0.50/1M tokens).
For output processing, Devstral Medium ($2.00/1M tokens) is 1.5x cheaper than Gemini 3 Flash ($3.00/1M tokens).
In conclusion, Gemini 3 Flash is more expensive than Devstral Medium.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 3 Flash accepts 1,000,000 input tokens compared to Devstral Medium's 128,000 tokens. Devstral Medium can generate longer responses up to 128,000 tokens, while Gemini 3 Flash is limited to 65,536 tokens.
Input Capabilities
Supported data types and modalities
Gemini 3 Flash supports multimodal inputs, whereas Devstral Medium does not.
Gemini 3 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.
Devstral Medium
Gemini 3 Flash
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Devstral Medium was released on 2025-07-10, while Gemini 3 Flash was released on 2025-12-17.
Gemini 3 Flash is 5 months newer than Devstral Medium.
Jul 10, 2025
1.1 years ago
Dec 17, 2025
8 months ago
5mo newerKnowledge Cutoff
When training data ends
Gemini 3 Flash has a documented knowledge cutoff of 2025-01-31, while Devstral Medium's cutoff date is not specified.
We can confirm Gemini 3 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without Devstral Medium's cutoff date.
—
Jan 2025
Provider Availability
Devstral Medium is available from Mistral AI. Gemini 3 Flash is available from Google.
Devstral Medium
Gemini 3 Flash
Outputs Comparison
Judge for yourself.
Run your own prompts against Devstral Medium and Gemini 3 Flash side-by-side, then vote on the output you prefer.
FAQ
Common questions about Devstral Medium vs Gemini 3 Flash.