Mistral AI logo

Mistral Medium 3.1


Mistral Medium 3.1 is Mistral AI logoMistral AI's language model with a 131K context window, available from 2 providers, starting at $0.400 / 1M input and $2.00 / 1M output. An updated release of Mistral Medium 3 with refined enterprise-grade language capabilities, maintaining strong reasoning and cost efficiency for production deployments.
Spec
Canonical IDmistral-medium-3-1
TypeLanguage
StatusActive
CreatorMistral AIMistral AI
Providers
Context Window131K tokens
Input ModalitiesImageText
Output ModalitiesText
Release Date · 8 months ago
Intelligence Index
21.3
#121
Coding Index
18.3
#111
Math Index
38.3
#101
MMLU-Pro
0.7
#161
GPQA
0.6
#161
HLE
0.0
#232
LiveCodeBench
0.4
#110
IFBench
0.4
#129
Time to First Token
0.45s
#173
SciCode
0.3
#106
AIME 2025
0.4
#101
LCR
0.2
#152
TerminalBench Hard
0.1
#107
TAU2
0.4
#104
Output TPS
72.3
#114

Capabilities

Input2/5
Text
Image
Audio·
Video·
PDF·
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities3/13
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

ProviderStandard
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Mistral AI logo
Mistral AI
mistral-medium-3-1-2508
$0.400$2.00N/A
OpenRouter logo
OpenRouter
mistralai/mistral-medium-3.1
$0.400$2.00$0.040

Cost Calculator

Preset:
Compares every provider & tier in USD

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Mistral Small (25.03)32K$1.00$3.00Available
Mistral Small 4Available
OpenChat 3.5 106 7B8K$0.200$0.200Available
OpenChat 3.5 7B8KAvailable
Mistral Small 3.2 24B Instruct128K$0.075$0.200Available
Mistral Small 3.2131K$0.060$0.180Available
Mistral Medium 3.1131K$0.400$2.00Current
Mistral Small 3.1Available
Mistral Small 3.1 24B BaseAvailable
Mistral 3 Large 675B Instruct128KAvailable
Mistral Large 3 675B Instruct128K$0.500$1.50Available

Model IDs