Mistral Medium 3.1

Claims and evidence

• Released 12 August 2025 ● Primary source[1]August 12 (2025) [2]page header date
• Deprecated 22 May 2026 ● Primary source[3]Deprecated & retired models table, Mistral Medium 3.1 [2]Deprecation date
• Retired 31 August 2026 ● Primary source[3]Deprecated & retired models table, Mistral Medium 3.1

• Status RetiredThe retirement date of 2026-08-31 in the models overview has passed; the docs model page still shows a Deprecated badge. ● Primary source[3]Deprecated & retired models table, Mistral Medium 3.1
• Replaced by Mistral Medium 3.5 ● Primary source[3]Deprecated & retired models table, Alternative column [2]Replacement

• Successor of Mistral Medium 3 EditorialEditorial link along the Mistral Medium line: the docs describe Mistral Medium 3.1 as the frontier-class multimodal model released in August 2025 with improved tone and performance, without naming a predecessor; Mistral Medium 3 (May 2025) was the previous Medium release. ● Primary source[2] [1]August 12 (2025)

• Change · Other Mistral says the update improves tone and performance.Compared with Mistral Medium 3 ● Primary source[2]

• Input text, image ● Primary source[2]Modalities
• Output text ● Primary source[2]Modalities
• Feature Function calling ● Primary source[2]Features: Function Calling
• Context window 128k tokens ● Primary source[2]Context
• Parameters Not disclosedNot disclosed by Mistral AI. No claim madeNo source
• Access API ● Primary source[2]Features: API endpoints [1]August 12 (2025)

Lineage

Variants

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