OpenAI

OpenAI: o3-pro

stable

o3-pro is available through Everstack's OpenAI-compatible gateway with routing, fallback, retries, and observability.

o3-proo-seriesreleased Jun 10, 2025
ProviderQuick start
Context
200K
tokens
Max output
100K
tokens
Input
$20.00
per 1M
Output
$80.00
per 1M

Activity

Daily period usage
Aggregated managed Everstack traffic. Buckets below 5 tenants or 100 requests are withheld.

Providers

ProviderContextInput /MOutput /M
OpenAI
OpenAI
200K$20.00$80.00

Pricing

ItemPriceUnit
Input$20.00per 1M tokens
Output$80.00per 1M tokens

Performance

Reliability

Compare

Compare usage and performance
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Capabilities

Capabilities
Modalities
Input
Output
Details
Model ID
o3-pro
Family
o-series
Status
stable
Knowledge
-
Released
Jun 10, 2025
Gateway Config
API
2024-01-01
Auth
OPENAI_API_KEY
Discovery
static
Provider type
static

Quick Start

index.ts
import Everstack from "@everstack/node";const client = new Everstack({  apiKey: process.env.EVERSTACK_API_KEY!,  baseUrl: "https://{instance}.{region}.everstack.ai",});const completion = await client.chat.completions.create({  model: "@openai/o3-pro",  messages: [{ role: "user", content: "Explain vector cache routing." }],});console.log(completion.choices[0]?.message?.content);

Endpoint

Base URL
https://api.openai.com/v1
Chat completions
https://api.openai.com/v1/chat/completions
Model
o3-pro
Auth env
OPENAI_API_KEY

o3-pro FAQ

How much does the o3-pro API cost?

Through OpenAI, o3-pro costs $20.00 per 1M input tokens and $80.00 per 1M output tokens.

What is the context window of o3-pro?

o3-pro accepts up to 200K tokens of context and returns up to 100K output tokens on OpenAI.

What can o3-pro do?

o3-pro supports chat, function calling, image input and reasoning. It accepts text and image input.

How do I call o3-pro through Everstack?

Point any OpenAI-compatible SDK at your Everstack gateway and set the model to @openai/o3-pro. Everstack adds retries, provider fallback, caching, per-tenant budgets and OpenTelemetry traces for every request.