OpenAI: GPT-5 Nano

Name: OpenAI: GPT-5 Nano
Price: 0.4 USD
Author: openai

OpenAI: GPT-5 Nano is openai's model. It is not yet scored on the meo first-party benchmark; aggregated third-party results and OpenRouter metadata are shown below.

Aggregated third-party benchmarks

Benchmark	Value	Source
AA Coding Index	20	artificial_analysis
AA Intelligence Index	27	artificial_analysis
AA Math Index	84	artificial_analysis
AIME 2025	83.7%	artificial_analysis
GPQA Diamond	67.6%	artificial_analysis
Humanity's Last Exam	8.2%	artificial_analysis
IFBench	67.6%	artificial_analysis
LCR (long-context reasoning)	41.7%	artificial_analysis
LiveCodeBench	78.9%	artificial_analysis
MMLU-Pro	78.0%	artificial_analysis
SciCode	36.6%	artificial_analysis
τ²-bench	36.5%	artificial_analysis
Terminal-Bench Hard	12.1%	artificial_analysis
Median output throughput (tokens/s)	179	artificial_analysis
Median time to first token (s)	88	artificial_analysis

Artificial Analysis (artificialanalysis.ai). Redistribution requires an AA commercial license.

Model details

Lab: openai
Released: 2025-08-07
Weights: —
Context: 400K
Max output: —
Knowledge cutoff: 2024-05-31
Price in: $0.05/M
Price out: $0.40/M
Modality: text+image+file->text

View on OpenRouter ↗

Sources: openrouter · artificial_analysis

FAQ

Is OpenAI: GPT-5 Nano open weights?

Open-weights status for OpenAI: GPT-5 Nano is not recorded.