LIVE INTELLIGENCE · part of the Xentir AI Index

DeepSeek-V3 (Mar 2025) vs GPT-4.1

DeepSeek-V3 (Mar 2025) OPEN WEIGHTS · DeepSeek, released 2025-03-24
GPT-4.1 · OpenAI, released 2025-04-14

“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 — DeepSeek-V3 (Mar 2025) leads on 1, GPT-4.1 leads on 3.

Benchmark	DeepSeek-V3 (Mar 2025)	GPT-4.1	Leads
Epoch Capabilities Index (ECI)	137.1	137.5	GPT-4.1
SWE-bench Verified	Not measured	0.485	Not measured on both
GPQA Diamond	0.676	0.669	DeepSeek-V3 (Mar 2025)
MATH Level 5	0.755	0.830	GPT-4.1
OTIS Mock AIME 2024-2025	0.378	0.383	GPT-4.1
FrontierMath	Not measured	0.055	Not measured on both
FrontierMath Tier 4	Not measured	0.000	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.

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DeepSeek-V3 (Mar 2025) → · GPT-4.1 → · the full AI Model Rankings table