Devstral 2 is a large language model from Mistral AI, released on December 9, 2025. It accepts text input.

When was Devstral 2 released?

Mistral AI released Devstral 2 on December 9, 2025.

How much does Devstral 2 cost?

Devstral 2 costs $0.40 per 1M input tokens and $2 per 1M output tokens through the Mistral AI API. Prices are from Mistral AI's official pricing as of October 5, 2026.

What is Devstral 2's context window?

Devstral 2 has a 256K-token context window.

How does Devstral 2 score on benchmarks?

Devstral 2 has 4 cited benchmark scores, including LMArena WebDev (LMArena) 1196.1 Elo, SWE-bench Multilingual 61.3% and SWE-bench Verified 72.2%. Each score links to its source.

Devstral 2

Mistral AI·Operational·Released 2025-12-09text

Context256k

Max output-

Input / 1M$0.4 ↗

Output / 1M$2 ↗

Cached in-

Benchmarks4

Benchmarks

Cited public sources · rank is exact-benchmark, apples-to-apples

LMArena WebDev (LMArena)

#91/941196.1 ↗

SWE-bench Multilingual

#10/1561.3% ↗

SWE-bench Verified

#36/5972.2% ↗

Terminal Bench 2

#1/332.6% ↗

Compare

vs Gemini 4 Argon vs GPT-6.1 Sol vs Claude Sonnet 5.5 vs Muse Spark 1.3 vs GPT-6 Sol vs GPT-6 Luna vs Claude Opus 5.5 vs GPT-6 Astra

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Devstral 2 FAQ

What is Devstral 2?: Devstral 2 is a large language model from Mistral AI, released on December 9, 2025. It accepts text input.
When was Devstral 2 released?: Mistral AI released Devstral 2 on December 9, 2025.
How much does Devstral 2 cost?: Devstral 2 costs $0.40 per 1M input tokens and $2 per 1M output tokens through the Mistral AI API. Prices are from Mistral AI's official pricing as of October 5, 2026.
What is Devstral 2's context window?: Devstral 2 has a 256K-token context window.
How does Devstral 2 score on benchmarks?: Devstral 2 has 4 cited benchmark scores, including LMArena WebDev (LMArena) 1196.1 Elo, SWE-bench Multilingual 61.3% and SWE-bench Verified 72.2%. Each score links to its source.

Access Devstral 2 and every other model through one endpoint with automatic failover: Respan gateway.