GPT-4o mini: advancing cost-efficient intelligence

Introducing our most cost-efficient small model

OpenAI is committed to making intelligence as broadly accessible as possible. Today, we're announcing GPT‑4o mini, our most cost-efficient small model. We expect GPT‑4o mini will significantly expand the range of applications built with AI by making intelligence much more affordable. GPT‑4o mini scores 82% on MMLU and currently outperforms GPT‑4¹ on chat preferences in LMSYS leaderboard⁠(opens in a new window). It is priced at 15 cents per million input tokens and 60 cents per million output tokens, an order of magnitude more affordable than previous frontier models and more than 60% cheaper than GPT‑3.5 Turbo.

GPT‑4o mini enables a broad range of tasks with its low cost and latency, such as applications that chain or parallelize multiple model calls (e.g., calling multiple APIs), pass a large volume of context to the model (e.g., full code base or conversation history), or interact with customers through fast, real-time text responses (e.g., customer support chatbots). 

Today, GPT‑4o mini supports text and vision in the API, with support for text, image, video and audio inputs and outputs coming in the future. The model has a context window of 128K tokens, supports up to 16K output tokens per request, and has knowledge up to October 2023. Thanks to the improved tokenizer shared with GPT‑4o, handling non-English text is now even more cost effective.

A small model with superior textual intelligence and multimodal reasoning

GPT‑4o mini surpasses GPT‑3.5 Turbo and other small models on academic benchmarks across both textual intelligence and multimodal reasoning, and supports the same range of languages as GPT‑4o. It also demonstrates strong performance in function calling, which can enable developers to build applications that fetch data or take actions with external systems, and improved long-context performance compared to GPT‑3.5 Turbo.

GPT‑4o mini has been evaluated across several key benchmarks².