Devstral Medium vs Gemini 3.8 Flash
Gemini 3.8 Flash leads the LLM Stats Score 51.0 to 13.9. Devstral Medium is 1.9x cheaper per token.
Mistral AI · Google · Updated for 2026
Which is better?
Gemini 3.8 Flash leads the overall LLM Stats Score 51.0 to 13.9, ranking #15 overall.
On price, Devstral Medium is roughly 1.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Gemini 3.8 Flash 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 Devstral Medium
- cost matters — it's about 1.9x cheaper per token
Choose Gemini 3.8 Flash
- overall performance matters — it scores 51.0 and ranks #15 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Sep 2026
At a glance
The differences that matter most.
Individual benchmarks
1 reported for Devstral Medium · 13 for Gemini 3.8 Flash
Devstral Medium and Gemini 3.8 Flashdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Devstral Medium ($0.40/1M tokens) is 1.9x cheaper than Gemini 3.8 Flash ($0.75/1M tokens).
For output processing, Devstral Medium ($2.00/1M tokens) is 1.9x cheaper than Gemini 3.8 Flash ($3.75/1M tokens).
In conclusion, Gemini 3.8 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 3.8 Flash 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 3.8 Flash is limited to 65,536 tokens.
Input capabilities
Documented input modalities across available providers
Gemini 3.8 Flash supports multimodal inputs, whereas Devstral Medium does not.
Gemini 3.8 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.
Devstral Medium
Gemini 3.8 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 3.8 Flash was released on 2026-09-02.
Gemini 3.8 Flash is 14 months newer than Devstral Medium.
Jul 10, 2025
1.2 years ago
Sep 2, 2026
2 days ago
1.1yr newerKnowledge Cutoff
When training data ends
Gemini 3.8 Flash has a documented knowledge cutoff of 2026-03-31, while Devstral Medium's cutoff date is not specified.
We can confirm Gemini 3.8 Flash's training data extends to 2026-03-31, but cannot make a direct comparison without Devstral Medium's cutoff date.
—
Mar 2026
Provider Availability
Devstral Medium is available from Mistral AI. Gemini 3.8 Flash is available from Google.
Devstral Medium
Gemini 3.8 Flash
Outputs Comparison
Judge for yourself.
Run your own prompts against Devstral Medium and Gemini 3.8 Flash side-by-side, then vote on the output you prefer.
FAQ
Common questions about Devstral Medium vs Gemini 3.8 Flash.