GPT-4.1 Nano

by OpenAI

Smallest GPT-4.1 variant

VisionToolsStructured output

Context window

1.0M

Max output

33K

Input price

$0.10 /1M

Output price

$0.40 /1M

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#366 of 505 LLMs

TierEfficient

Output speed116 tok/s

First token0.46s

Intelligence Index13.0

Coding Index11.2

Math Index24.0

MMLU-Pro

66%

GPQA Diamond

51%

Humanity's Last Exam

LiveCodeBench

33%

SciCode

26%

AIME 2025

24%

IFBench

32%

Long-context reasoning

17%

Terminal-Bench Hard

τ²-Bench Telecom

17%

See full leaderboard →Benchmarks via Artificial Analysis · View on AA

Available routes

The same GPT-4.1 Nano runs on 1 route through the Opper gateway. Each route has its own data-handling posture.

Provider	Region	Zero data retention	Training	Logging	Contract	Input	Output
OpenAI	US	Opt-in	No (opt-in)	Up to 30 days for abuse monitoring on stateless endpoints. Stateful endpoints (Conversations, ChatKit, Vector Stores) retain until deleted.	Enterprise	$0.10	$0.40

Human review: Abuse-flagged only

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