What is the difference between DeepSeek V3.1 and Mistral Devstral Medium?

DeepSeek V3.1 is developed by DeepSeek while Mistral Devstral Medium is developed by Mistral AI. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek V3.1 or Mistral Devstral Medium?

It depends on your use case. DeepSeek V3.1 and Mistral Devstral Medium each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does DeepSeek V3.1 cost compared to Mistral Devstral Medium?

DeepSeek V3.1 costs $0.2/M input tokens and Mistral Devstral Medium costs $0.4/M input tokens. DeepSeek V3.1 is $0.20/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare DeepSeek V3.1 and Mistral Devstral Medium on Rival?

This page shows a side-by-side comparison of DeepSeek V3.1 and Mistral Devstral Medium across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

What is the difference between DeepSeek V3.1 and Mistral Devstral Medium?

DeepSeek V3.1 is developed by DeepSeek while Mistral Devstral Medium is developed by Mistral AI. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek V3.1 or Mistral Devstral Medium?

It depends on your use case. DeepSeek V3.1 and Mistral Devstral Medium each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does DeepSeek V3.1 cost compared to Mistral Devstral Medium?

DeepSeek V3.1 costs $0.2/M input tokens and Mistral Devstral Medium costs $0.4/M input tokens. DeepSeek V3.1 is $0.20/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare DeepSeek V3.1 and Mistral Devstral Medium on Rival?

This page shows a side-by-side comparison of DeepSeek V3.1 and Mistral Devstral Medium across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Aug 2025

DeepSeek V3.1vsMistral Devstral Medium

DeepSeek V3.1 is cheaper than Mistral Devstral Medium at $0.2/M vs $0.4/M input tokens.

DeepSeek V3.1 and Mistral Devstral Medium compared across 54 shared prompts
Spec	DeepSeek V3.1	Mistral Devstral Medium
Input price	$0.2/M tokens	$0.4/M tokens
Output price	$0.8/M tokens	$2/M tokens
Context window	164K tokens	—
Released	Aug 2025	Jul 2025
SWE-bench Verified	66.0%	61.6%

Our Verdict

DeepSeek V3.1

Mistral Devstral MediumRunner-up

Not enough votes to call it. On the specs, DeepSeek V3.1 has the edge: bigger model tier, newer, bigger context window, major provider backing.

Slight edge

What do DeepSeek V3.1 and Mistral Devstral Medium say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

DeepSeek V3.1

Input

$0.20

2.0× cheaper

Output

$0.80

2.5× cheaper

Mistral Devstral Medium

Input

$0.40

Output

$2.00

DeepSeek V3.1 is cheaper on both — 2.0× input, 2.5× output

Writing DNA

Style Comparison

Similarity

86%

DeepSeek V3.1 uses 2.4x more emoji

DeepSeek V3.1

Mistral Devstral Medium

53%Vocabulary50%

14wSentence Length17w

0.42Hedging0.56

4.0Bold4.5

3.6Lists5.3

0.02Emoji0.00

0.40Headings0.19

0.22Transitions0.32

Based on 23 + 21 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Updated Aug 2025

DeepSeek V3.1vsMistral Devstral Medium

DeepSeek V3.1 is cheaper than Mistral Devstral Medium at $0.2/M vs $0.4/M input tokens.

DeepSeek V3.1 and Mistral Devstral Medium compared across 54 shared prompts
Spec	DeepSeek V3.1	Mistral Devstral Medium
Input price	$0.2/M tokens	$0.4/M tokens
Output price	$0.8/M tokens	$2/M tokens
Context window	164K tokens	—
Released	Aug 2025	Jul 2025
SWE-bench Verified	66.0%	61.6%

Our Verdict

DeepSeek V3.1

Mistral Devstral MediumRunner-up

Not enough votes to call it. On the specs, DeepSeek V3.1 has the edge: bigger model tier, newer, bigger context window, major provider backing.

Slight edge

What do DeepSeek V3.1 and Mistral Devstral Medium say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

DeepSeek V3.1

Input

$0.20

2.0× cheaper

Output

$0.80

2.5× cheaper

Mistral Devstral Medium

Input

$0.40

Output

$2.00

DeepSeek V3.1 is cheaper on both — 2.0× input, 2.5× output

Writing DNA

Style Comparison

Similarity

86%

DeepSeek V3.1 uses 2.4x more emoji

DeepSeek V3.1

Mistral Devstral Medium

53%Vocabulary50%

14wSentence Length17w

0.42Hedging0.56

4.0Bold4.5

3.6Lists5.3

0.02Emoji0.00

0.40Headings0.19

0.22Transitions0.32

Based on 23 + 21 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Mistral Devstral Medium vs Ox AlphaNew provider

Mistral Devstral Medium vs MiniMax M3New provider

Mistral Devstral Medium vs GPT-5New provider

Mistral Devstral Medium vs Claude Opus 4New provider

Mistral Devstral Medium vs Qwen3.8 2.4T A95BNew provider

Mistral Devstral Medium vs Qwen3.8 27BNew provider

Mistral Devstral Medium vs Qwen3.8 MaxNew provider

Mistral Devstral Medium vs QwQ 32BNew provider