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Gemini 3.1 Pro vs Magistral Small 1.2

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Gemini 3.1 ProMagistral Small 1.2
AttributeGemini 3.1 ProGoogle DeepMind · 3 in the newsMagistral Small 1.2Mistral AI
Scores
Intelligence (ECI)155
Coding6522
Math7421
Reasoning & Knowledge945
Agentic & Tools835
Specifications
DeveloperGoogle DeepMindMistral AI
FamilyGemini
ReleasedFeb 19, 2026Sep 18, 2025
Parameters
AvailabilityAPI accessOpen weights (unrestricted)
Context window
Price — $/M input
Price — $/M output
Inputs
Outputs
Benchmarks
AIME 2024/202596%80%
APEX34%
ARC-AGI98%
ARC-AGI-277%
FrontierMath37%
FrontierMath Tier 417%
GPQA Diamond94%66%
GSO (code optimization)23%
Humanity's Last Exam46%6%
METR task horizon6.4 h
SimpleBench80%
SimpleQA Verified77%
SWE-bench Verified76%
Terminal-Bench80%
WebDev Arena1461
WeirdML72%
LiveCodeBench72%
MMLU-Pro77%
SciCode35%
τ²-bench28%

Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.

Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.