Using o3 Mini on Vercel AI Gateway

Implementation guide · o3 · OpenAI

Serverless

Vercel AI Gateway exposes o3 Mini through model ID openai/o3-mini. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-06-29. Next refresh: weekly.

Quick Start

1
Create an account at Vercel AI Gateway and generate an API key.
2
Use the Vercel AI Gateway SDK or REST API to call openai/o3-mini — see the documentation for request format.
3
You'll be billed $1.10/1M input, $4.40/1M output tokens. See full pricing.

API Portal Documentation Pricing Model Card

Code Examples

Install

pip install openai

API key

AI_GATEWAY_API_KEY

Model ID

openai/o3-mini

creator/model-name e.g. kwaipilot/kat-coder-pro-v2

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["AI_GATEWAY_API_KEY"],
    base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
    model="openai/o3-mini",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on Vercel AI Gateway

Type	Price (per 1M)
Input tokens	$1.10
Output tokens	$4.40

Capabilities

ReasoningJSON / Tool useStructured OutputsCode ExecutionPrompt Caching

About o3 Mini

OpenAI o3-mini - cost-optimized reasoning model. Compact variant of reasoning model family.

Full model details →

Model Specs

Released2025-01-31

Context200k

ArchitectureDecoder Only

Knowledge cutoff2025-04

Vercel