All Models

o3 (Fast)

o Reasoning Tool Calling Attachments Structured Output

Deliberate o-series reasoner for hard math, coding, and multi-step analysis

Providers 1
Released Apr 16, 2025
Input Modalities text, image, pdf
Output Modalities text
Tarsk Use coding

Available Providers (1)

Provider Model ID Input Cost Output Cost Context Max Output Docs
Vercel AI Gateway openai/o3-fast $3.50/MTok $14/MTok 200K 100K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output