MistralDecember 9, 2025· 123B· Open source

Devstral 2

Name: Devstral 2
Price: 0.4 USD
Author: Mistral

Open-weight coding model, 72.2% SWE-bench Verified at 7x lower cost than Sonnet

Singularity Index

72.2

RANK 19 / 61

Reasoning

—

30%

Coding

25%

Agentic

—

25%

Multimodal

—

10%

General

—

10%

BENCHMARKS

Benchmark	Score	Rank
SWE-bench Real-world GitHub issue resolution	72.2%	#22 / 38

Input

$0.4

per 1M tokens

Output

per 1M tokens

Context

256K

tokens

Speed

72.1

tokens / sec