What is the difference between Mistral Devstral Small 1.1 and GPT OSS 20B?

Mistral Devstral Small 1.1 is developed by Mistral AI while GPT OSS 20B is developed by OpenAI. in 25 community votes on Rival, GPT OSS 20B wins 60% of head-to-head matchups. These results are based on blind head-to-head voting across 54 challenges.

Which is better, Mistral Devstral Small 1.1 or GPT OSS 20B?

Based on 25 community votes on Rival, GPT OSS 20B wins 60% of head-to-head matchups against Mistral Devstral Small 1.1. GPT OSS 20B is strongest in Web Design, Reasoning. However, Mistral Devstral Small 1.1 leads in Image Generation.

How much does Mistral Devstral Small 1.1 cost compared to GPT OSS 20B?

Mistral Devstral Small 1.1 costs $0.1/M input tokens and GPT OSS 20B costs $0.02/M input tokens. GPT OSS 20B is $0.08/M cheaper per input. GPT OSS 20B also wins more often in community votes, making it the better value.

How are Mistral Devstral Small 1.1 vs GPT OSS 20B votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 25 votes have been collected for this pair across 54 challenges. All vote data is part of Rival's open dataset.

Updated Aug 2025

Mistral Devstral Small 1.1vsGPT OSS 20B

GPT OSS 20B wins 60% of 25 blind community votes against Mistral Devstral Small 1.1 on Rival.

Mistral Devstral Small 1.1 and GPT OSS 20B compared across 54 shared prompts
Spec	Mistral Devstral Small 1.1	GPT OSS 20B
Win rate	40%	60%
Input price	$0.1/M tokens	$0.02/M tokens
Output price	$0.3/M tokens	$0.1/M tokens
Context window	—	131K tokens
Weights	Open	Open
Free API (OpenRouter)	No	No
Released	Jul 2025	Aug 2025