GPT-4.1 Nano

Name: GPT-4.1 Nano
Author: OpenAI

OpenAI · 2025-04-14

GPT-4.1 Nano is the smallest and fastest tier of OpenAI's GPT-4.1 family, built for the cheapest, lowest-latency tasks while keeping a long context window. It is aimed at high-volume classification, extraction, and lightweight workloads. Its only published snapshot, and the gpt-4.1-nano alias's default, is gpt-4.1-nano-2025-04-14.

Benchmark scores

Benchmark	Score
AA-LCR	17.0
AA-LCR v1.1	20.3
AA-Omniscience Index	-57.6
AidanBench	666
Aider Polyglot	8.9
AIME 2024 (avg@8)	28.8
AIME 2024-2025	26.5
AIME 2025 (Artificial Analysis avg@10)	24.0
AIME 2025 (avg@8)	24.2
ARC-AGI-1 Semi-Private	0.0
ARC-AGI-2	0.0
Arena Text — Business, Management & Financial Ops (No Style Control)	1266
Arena Text — Chinese (No Style Control)	1270
Arena Text — Creative Writing (No Style Control)	1260
Arena Text — English (No Style Control)	1303
Arena Text — Entertainment, Sports & Media (No Style Control)	1243
Arena Text — Exclude Ties (No Style Control)	1210
Arena Text — Exclude Ties (Style Controlled)	1267
Arena Text — Expert (No Style Control)	1272
Arena Text — German (No Style Control)	1288
Arena Text — Hard Prompts (No Style Control)	1286
Arena Text — Hard Prompts English (No Style Control)	1292
Arena Text — Instruction Following (No Style Control)	1266
Arena Text — Japanese (No Style Control)	1198
Arena Text — Legal & Government (No Style Control)	1300
Arena Text — Life, Physical & Social Science (No Style Control)	1297
Arena Text — Longer Query (No Style Control)	1282
Arena Text — Medicine & Healthcare (No Style Control)	1276
Arena Text — Multi-turn (No Style Control)	1277
Arena Text — Non-English (No Style Control)	1260