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Devstral Medium vs Gemini 3.5 Flash-Lite

Devstral Medium and Gemini 3.5 Flash-Lite are closely matched at 13.6 and 29.7 on the LLM Stats Score. Devstral Medium is 1.1x cheaper per token.

Mistral AI · Google · Updated for 2026

Which is better?

Devstral Medium and Gemini 3.5 Flash-Lite are closely matched on the overall LLM Stats Score at 13.6 and 29.7.

On price, Devstral Medium is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.5 Flash-Lite 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 1.1x cheaper per token

Choose Gemini 3.5 Flash-Lite

  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Jul 2026

At a glance

The differences that matter most.

Core performance indexes
13.6
#249
29.7
#130
13.5
#242
25.7
#155
5.3
#206
15.6
#135
Cost, coverage & limits
Benchmark wins
Input price
$0.40 / M
$0.30 / M
Output price
$2.00 / M
$2.50 / M
Context window
128,000
1,048,576

Individual benchmarks

1 reported for Devstral Medium · 6 for Gemini 3.5 Flash-Lite

No common benchmarks found

Devstral Medium and Gemini 3.5 Flash-Litedon'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

Devstral Medium costs less

For input processing, Devstral Medium ($0.40/1M tokens) is 1.3x more expensive than Gemini 3.5 Flash-Lite ($0.30/1M tokens).

For output processing, Devstral Medium ($2.00/1M tokens) is 1.3x cheaper than Gemini 3.5 Flash-Lite ($2.50/1M tokens).

In conclusion, Gemini 3.5 Flash-Lite is more expensive than Devstral Medium.*

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

Lowest available price from all providers
Wed Sep 23 2026 • llm-stats.com
Mistral AI
Devstral Medium
Input tokens$0.40
Output tokens$2.00
Best providerMistral
Google
Gemini 3.5 Flash-Lite
Input tokens$0.30
Output tokens$2.50
Best providerGoogle
Notice missing or incorrect data?Start an Issue

Context Window

Maximum input and output token capacity

Gemini 3.5 Flash-Lite 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 3.5 Flash-Lite is limited to 65,536 tokens.

Mistral AI
Devstral Medium
Input128,000 tokens
Output128,000 tokens
Google
Gemini 3.5 Flash-Lite
Input1,048,576 tokens
Output65,536 tokens
Wed Sep 23 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Gemini 3.5 Flash-Lite supports multimodal inputs, whereas Devstral Medium does not.

Gemini 3.5 Flash-Lite can handle both text and other forms of data like images, making it suitable for multimodal applications.

Devstral Medium

Text
Images
Audio
Video

Gemini 3.5 Flash-Lite

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 3.5 Flash-Lite

Proprietary

Closed source

Release Timeline

When each model was launched

Devstral Medium was released on 2025-07-10, while Gemini 3.5 Flash-Lite was released on 2026-07-21.

Gemini 3.5 Flash-Lite is 13 months newer than Devstral Medium.

Devstral Medium

Jul 10, 2025

1.2 years ago

Gemini 3.5 Flash-Lite

Jul 21, 2026

2 months ago

1.0yr newer

Knowledge Cutoff

When training data ends

Gemini 3.5 Flash-Lite has a documented knowledge cutoff of 2026-03-31, while Devstral Medium's cutoff date is not specified.

We can confirm Gemini 3.5 Flash-Lite's training data extends to 2026-03-31, but cannot make a direct comparison without Devstral Medium's cutoff date.

Devstral Medium

Gemini 3.5 Flash-Lite

Mar 2026

Provider Availability

Devstral Medium is available from Mistral AI. Gemini 3.5 Flash-Lite is available from Google.

Devstral Medium

mistral logo
Mistral
Input Price:Input: $0.40/1MOutput Price:Output: $2.00/1M

Gemini 3.5 Flash-Lite

google logo
Google
Input Price:Input: $0.30/1MOutput Price:Output: $2.50/1M
* 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 Devstral Medium and Gemini 3.5 Flash-Lite side-by-side, then vote on the output you prefer.

Devstral Medium
✓ Preferred
Gemini 3.5 Flash-Lite
Open in Playground

FAQ

Common questions about Devstral Medium vs Gemini 3.5 Flash-Lite.

Which is better, Devstral Medium or Gemini 3.5 Flash-Lite?

Devstral Medium and Gemini 3.5 Flash-Lite are closely matched on the LLM Stats Score at 13.6 and 29.7. Devstral Medium is made by Mistral AI and Gemini 3.5 Flash-Lite is made by Google. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Devstral Medium compare to Gemini 3.5 Flash-Lite in benchmarks?

Devstral Medium scores SWE-Bench Verified: 61.6%. Gemini 3.5 Flash-Lite scores CharXiv-R: 76.5%, OSWorld-Verified: 74.0%, SWE-Bench Pro: 54.2%, Terminal-Bench 2.1: 54.0%, MLE-Bench: 39.2%.

Is Devstral Medium cheaper than Gemini 3.5 Flash-Lite?

Gemini 3.5 Flash-Lite is 1.3x cheaper for input tokens. Devstral Medium costs $0.40/M input and $2.00/M output via mistral. Gemini 3.5 Flash-Lite costs $0.30/M input and $2.50/M output via google.

What are the context window sizes for Devstral Medium and Gemini 3.5 Flash-Lite?

Devstral Medium supports 128K tokens and Gemini 3.5 Flash-Lite supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Devstral Medium and Gemini 3.5 Flash-Lite?

Key differences include LLM Stats Score (13.6 vs 29.7), context window (128K vs 1.0M), input pricing ($0.40 vs $0.30/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

Who makes Devstral Medium and Gemini 3.5 Flash-Lite?

Devstral Medium is developed by Mistral AI and Gemini 3.5 Flash-Lite is developed by Google.