Mistral: Mistral Medium 3.1

mistralai/mistral-medium-3.1 · Mistral AINot yet established

Declared family: Mistral
Evidence confidence: Unknown
Declared tokenizer tag: Mistral
Entered catalogue: 13 August 2025
Last tested: Not yet measured
Measurement: Awaiting measurement

Evidence stack

Signals of different kinds, weighed together

Signal	Result	Reference
Tokenizer signature	Not measured	–
API surface	Identical contract to 2 other entries	api_187a6124
Context and output	131,072 context · – max output	declared
Reasoning contract	None declared	declared
Serving providers observed	None recorded yet	–

Declared record

What the catalogue claims about this model

Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost. It balances...

Modalities: text+image+file->text
Declared tokenizer: Mistral
Prompt price: $0.40 / M tokens
Completion price: $2.00 / M tokens

Supported parameters

frequency_penaltymax_tokenspresence_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_p

defaults: {"temperature":0.3}

Catalogue entry

History

Every observation, kept as taken

13 August 2025Enters the OpenRouter catalogue declared as Mistral.

Cite this page as the evidence record for Mistral: Mistral Medium 3.1: the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings. The raw data behind every figure is on the data page.