LIVE INTELLIGENCE · part of the Xentir AI Index

GPT-4.1 nano vs Grok-2 (Dec 2024)

Name: GPT-4.1 nano vs Grok-2 (Dec 2024) — benchmark results
Creator: Epoch AI
License: https://creativecommons.org/licenses/by/4.0/

GPT-4.1 nano · OpenAI, released 2025-04-14
Grok-2 (Dec 2024) · xAI, released 2024-12-12

“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 2026-09-09 · Methodology · Data Sources

GPT-4.1 nano leads on more of the 5 benchmarks where both are measured — GPT-4.1 nano on 3, Grok-2 (Dec 2024) on 2. The remaining 4 of 9 tracked benchmarks cannot be compared: 1 has a result for only one of the two models, 3 for neither. Nothing on this page is estimated to fill those in.

Head-to-head

Measured on 5 of 9 tracked benchmarks for both models — GPT-4.1 nano leads on 3, Grok-2 (Dec 2024) leads on 2.

Benchmark	GPT-4.1 nano	Grok-2 (Dec 2024)	Leads
Epoch Capabilities Index (ECI)	129.6	130.5	Grok-2 (Dec 2024)
SWE-bench Verified	Not measured	Not measured	Not measured on both
GPQA Diamond	0.489	0.538	Grok-2 (Dec 2024)
MATH Level 5	0.700	0.635	GPT-4.1 nano
OTIS Mock AIME 2024-2025	0.289	0.115	GPT-4.1 nano
FrontierMath	0.010	0.007	GPT-4.1 nano
FrontierMath Tier 4	Not measured	Not measured	Not measured on both
SimpleQA Verified	0.060	Not measured	Comparison unavailable — Grok-2 (Dec 2024) has no published result
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.

What remains uncertain

Grok-2 (Dec 2024) has no published result on SimpleQA Verified.
3 tracked benchmarks have no published result for either model.

A missing result means Xentir has not found one published by the source it cites, not that the model performs badly. See Data Sources.

Reference price

Per 1M tokens	GPT-4.1 nano	Grok-2 (Dec 2024)
Output	$0.40	—

List price as published by the vendor. Xentir does not verify negotiated or enterprise rates, and price is not a measure of capability — see Data Sources.

Full profiles

GPT-4.1 nano → · Grok-2 (Dec 2024) → · the full AI Model Rankings table