LIVE INTELLIGENCE · part of the Xentir AI Index

GPT-4 Turbo (Apr 2024) vs Mistral Small 3.1

GPT-4 Turbo (Apr 2024) · OpenAI, released 2024-04-09
Mistral Small 3.1 OPEN WEIGHTS · Mistral AI, released 2025-03-17

“Epoch AI, 'AI Benchmarking Hub'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks' [online resource].” · epoch.ai/benchmarks · Licensed CC BY 4.0 · data last verified 2026-07-26 · Methodology · Data Sources

Head-to-head

Measured on 4 of 9 tracked benchmarks for both models — GPT-4 Turbo (Apr 2024) leads on 1, Mistral Small 3.1 leads on 3.

Benchmark	GPT-4 Turbo (Apr 2024)	Mistral Small 3.1	Leads
Epoch Capabilities Index (ECI)	127.6	127.7	Mistral Small 3.1
SWE-bench Verified	Not measured	Not measured	Not measured on both
GPQA Diamond	0.466	0.475	Mistral Small 3.1
MATH Level 5	0.467	0.468	Mistral Small 3.1
OTIS Mock AIME 2024-2025	0.067	0.058	GPT-4 Turbo (Apr 2024)
FrontierMath	Not measured	Not measured	Not measured on both
FrontierMath Tier 4	Not measured	Not measured	Not measured on both
SimpleQA Verified	Not measured	Not measured	Not measured on both
Chess Puzzles	Not measured	Not measured	Not measured on both

Benchmark results measure specific tasks and should not be treated as a universal measure of model quality. A model with no row here for a benchmark has not been measured on it — that is left blank, never estimated.

Full profiles

GPT-4 Turbo (Apr 2024) → · Mistral Small 3.1 → · the full AI Model Rankings table