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o3

o3 is OpenAI's advanced reasoning model that succeeds o1, delivering stronger chain-of-thought performance on mathematical, scientific, and coding problems with improved efficiency and full tool support.

File InputReasoningTool UseVision (Image)Implicit Caching
index.ts
import { streamText } from 'ai'
const result = streamText({
model: 'openai/o3',
prompt: 'Why is the sky blue?'
})

Providers

Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.

Provider
Context
Latency
Throughput
Input
Output
Cache
Web Search
Per Query
Capabilities
ZDR
No Training
Release Date
OpenAI
Legal:Terms
Privacy
200K
0.7s
136tps
$2.00/M$8.00/M
Read:$0.5/M
Write:
$10/K
+ input costs
04/16/2025