Model

GPT-5 Nano

A lightweight language model released by OpenAI, positioned as a small-parameter model optimized for low cost and high efficiency. It is designed for applications where inference speed and pricing constraints are primary considerations.

Timeline (last 90 days)

Sep 23

GPT-6 Luna is one of the cheapest models in OpenAI's history, with only GPT-4.1 Nano and GPT-5 Nano priced lower.

Expired50%

Source Articles

Hands-on: Jev vs Three Cheap Models — the Cost Advantage Isn't That BigOct 19 Jev and System One Models: The New LLM Paradigm Called "Decision Models"Sep 22