Devstral Small is Mistral AI's language model with a 256K context window and up to 64K output tokens, available from 3 providers, starting at $0.07 / 1M input and $0.28 / 1M output. Mistral AI's lightweight agentic coding model built with All Hands AI, specializing in tool-use, codebase exploration, and multi-file editing.
Specifications
Canonical IDmistral-devstral-small
TypeLanguage
StatusActive
CreatorMistral AIMistral AI
Providers
Context Window256K tokens
Max Output64K tokens
Input ModalitiesText
Output ModalitiesText
Release Date · 1 year ago
Knowledge Cutoff · 1 year ago
Benchmarks
Intelligence Index
9.3
#309
Math Index
29.3
#179
MMLU-Pro
0.6
#244
GPQA
0.4
#379
HLE
0.0
#440
LiveCodeBench
0.3
#232
AIME
0.0
#163
IFBench
0.3
#327
Time to First Token
0.00s
#168
SciCode
0.2
#320
MATH-500
0.6
#140
AIME 2025
0.3
#179
LCR
0.2
#282
TerminalBench Hard
0.1
#250
TAU2
0.3
#246
Output TPS
0.0
#427

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities4/13
Reasoning·
Adaptive Reasoning·
Function Calling
Parallel Function Calling·
Structured Outputs
Native JSON Schema
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill

Pricing by Provider

US Dollar ($)
Per 1M tokens
ProviderStandard
Input
$ / 1M
Output
$ / 1M
Fireworks AI logo
Fireworks AI
fireworks_ai/accounts/fireworks/models/devstral-small-2505
$0.9$0.9
Mistral AI logo
Mistral AI
mistral/devstral-small-2505
$0.1$0.3
Vercel AI Gateway logo
Vercel AI Gateway
vercel_ai_gateway/mistral/devstral-small
$0.07$0.28

Cost Calculator

US Dollar ($)
Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Devstral 2 Small 24B InstructAvailable
Devstral Small256K$0.070$0.280Current

Other Models

ModelTierReleasedContextInput / 1MOutput / 1M
Cydonia 24B V4.1131K$0.300$0.500
Mistral Small 4
Mistral Small 4 Non-Reasoning
Mistral Medium 3.5262K$1.50$7.50
Mistral Large 3 675B Instruct128K$0.500$1.50
Mistral Medium 3.1131K$0.400$2.00
Mistral Small 3.2 24B Instruct131K$0.075$0.200
Mistral Medium 3131K$0.400$2.00
Mistral Small 3.1
Mistral Small 3.2131K$0.060$0.180

Model IDs

accounts/fireworks/models/devstral-small-2505
devstral-small
devstral-small-2505
devstral-small-2507
devstral-small-latest
fireworks_ai/accounts/fireworks/models/devstral-small-2505
labs-devstral-small-2512
mistral-devstral-small
mistral/devstral-small
mistral/devstral-small-2505
mistral/devstral-small-2507
mistral/devstral-small-latest
mistral/labs-devstral-small-2512
mistralai/devstral-small
vercel_ai_gateway/mistral/devstral-small