LIVE INTELLIGENCE · part of the Xentir AI Index

GPT-3.5 Turbo (Nov 2023) vs Mixtral 8x7B (Instruct v0.1)

GPT-3.5 Turbo (Nov 2023) · OpenAI, released 2023-11-06
Mixtral 8x7B (Instruct v0.1) OPEN WEIGHTS · Mistral AI, released 2023-12-11

“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 3 of 9 tracked benchmarks for both models — GPT-3.5 Turbo (Nov 2023) leads on 2, Mixtral 8x7B (Instruct v0.1) leads on 1.

Benchmark	GPT-3.5 Turbo (Nov 2023)	Mixtral 8x7B (Instruct v0.1)	Leads
Epoch Capabilities Index (ECI)	118.2	118.1	GPT-3.5 Turbo (Nov 2023)
SWE-bench Verified	Not measured	Not measured	Not measured on both
GPQA Diamond	0.280	0.306	Mixtral 8x7B (Instruct v0.1)
MATH Level 5	0.159	0.093	GPT-3.5 Turbo (Nov 2023)
OTIS Mock AIME 2024-2025	Not measured	Not measured	Not measured on both
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-3.5 Turbo (Nov 2023) → · Mixtral 8x7B (Instruct v0.1) → · the full AI Model Rankings table