o3

OpenAI’s Fastest Multimodal AI Model

What is o3?

‍ o3 is the internal name for GPT‑4o, OpenAI’s most advanced AI model. The “o” stands for omni, representing its ability to process and generate text, images, and audio in real time. o3 breaks new ground in AI usability with lower latency, more natural conversations, and unified multimodal intelligence in a single model.

It is available in the ChatGPT product (as of May 2024) and through OpenAI’s API, offering developers access to one of the most capable general-purpose AI systems to date.

Key Features of o3

Real-Time Audio Support

Engage in back-and-forth voice conversations with expressive, fast, and low-latency speech.

Top-Tier Language Intelligence

Delivers state-of-the-art performance on text, reasoning, math, coding, and translation.

Vision-Enabled Understanding

Interpret screenshots, photos, documents, charts, and visuals with high accuracy.

Fastest GPT Model Yet

Faster and more efficient than GPT‑4 Turbo, optimized for live apps and assistants.

Lower Inference Cost

Reduces API usage costs while delivering better performance across tasks.

Seamless Integration with GPT APIs

Works with OpenAI's Assistants API, function calling, tools, and JSON output.

Use Cases of o3

Build smart agents that speak, listen, and respond in real-time with human-like nuance.

Enable apps that understand documents, images, and spoken commands.

Answer questions about diagrams, photos, UIs, or physical objects from camera input.

Deploy fast, empathetic bots that interact over voice, text, or embedded UIs.

Create tutors who speak, show, explain, and interact fluidly with learners.

o3

vs

Peer Models (GPT-4o vs Others)

Feature	o3 (GPT-4o)	GPT-4 Turbo	Claude 3 Opus	Gemini 1.5 Pro
Multimodal Support	Text, Image, Audio	Text + Image	Text-Focused	Text + Image
Voice Interaction	Native + Real-Time	None	None	Limited
Latency & Speed	Fastest	Moderate	Moderate	Moderate
Image Understanding	Full Vision	Limited Vision	Yes	Yes
Open Weights	Closed	Closed	Closed	Closed
Best Use Case	Real-Time Assistants	Text AI Tools	Long-form QA	Data-Heavy Apps