Mistral AI · Released Feb 12, 2026
Mistral Medium 3.5
Mistral's refined medium-tier open weights model optimized for European data compliance, code generation, and multi-lingual agility.
OpenRating Index
51.2
0–100 composite
Reasoning Index
69.8
0–100 composite
Cost / Task
$0.46
benchmark run
Output speed
146 tok/s
blended tok/s
Time to first token
0.5s
median latency
Input price
$0.25
per 1M tokens
Output price
$0.75
per 1M tokens
Context window
128K
tokens
Strengths
European data residency & sovereignty deployment options
Clean instruction following and structured JSON generation
Fast 145 tok/s output throughput
How we rate Mistral Medium 3.5
OpenRating scores every model on the same axes. The OpenRating Index is a weighted composite of reasoning, knowledge, and agentic benchmarks, normalised to a 0–100 scale. Speed is blended output measured in tokens per second under standardised load, with time-to-first-token reported separately. Prices are list input and output prices per million tokens, and Task Cost measures end-to-end workload spending.
OpenRating Index
51.2
Reasoning Index
69.8
Token Pricing
Input per 1M tokens
$0.25
Output per 1M tokens
$0.75
Cost of 1M input + 1M output
$1
Task Cost Economics
Empirical cost breakdown for a standard OpenRating Index benchmark task ($0.46 total).
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