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Magistral Medium 1.2

Mistral AI · 2025-09-18

Magistral Medium 1.2 is Mistral AI's frontier-class multimodal reasoning model update released in September 2025. It accepts text and image input, always generates thinking traces, and has a published 128k-token context limit. Mistral lists May 22, 2026 as its deprecation date and Mistral Medium 3.5 as its replacement.

Benchmark scores

BenchmarkScore
AA-LCR51.3
AA-Omniscience Index-26.2
AIME 2024 (avg@8)87.1
AIME 2024-202583.5
AIME 202582.0
AIME 2025 (avg@8)80.0
Artificial Analysis Agentic Index1.9
Artificial Analysis Coding Index21.3
Artificial Analysis Intelligence Index17.9
Artificial Analysis Omniscience Accuracy20.9
Artificial Analysis Omniscience Hallucination Rate59.5
Artificial Analysis Openness Index27.8
Capability137.6
CorpFin v247.4
CorpFin v2 - Exact Pages52.0
CorpFin v2 - Max Fitting Context43.0
CorpFin v2 - Shared Max Context47.2
CritPt0.3
Design Arena Overall Code Categories1063
GDPval-AA v2413
GDPval-AA v2 (normalized)0.0
Global MMLU Lite81.6
GPQA Diamond62.6
GPQA Diamond (Vals protocol average)62.4
Humanity's Last Exam (Text-Only)9.6
IFBench (Artificial Analysis)43.0
IOI0.7
IOI - IOI 20240.5
IOI - IOI 20250.8
LegalBench54.8
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