Synapse Garden
OpenAI · MultimodalReleased 2025-04-16

o3-pro

openai/o3-pro id

The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently better answers.

ReasoningChatTool useWeb search
Type
Use o3-pro
# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$ 
$ const { text } = await generateText({
$   model: 'openai/o3-pro',
$   baseURL: 'https://synapse.garden/api/v1',
$   apiKey: process.env.MG_KEY,
$   prompt: 'Why is the sky blue?',
$ })
200K
CONTEXT WINDOW
100K
MAX OUTPUT
$22.00/M
INPUT · PER M
$88.00/M
OUTPUT · PER M
PRICING

List prices, every modality.

RatePer million tokens · USD
Input$22.00/M
Output$88.00/M
Honest list pricesHow we calculate prices
MORE FROM OPENAI

Other OpenAI models

See all 48
Model
Input
Output
Context
Type
FAQ · O3-PRO

Frequently asked

01 / 04

How do I call o3-pro from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘openai/o3-pro’ and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does o3-pro cost?

Input: $22.00/M per million tokens. Output: $88.00/M per million tokens. The free tier includes a million tokens every month at no cost.

03 / 04

What's the context window for o3-pro?

o3-pro supports a context window of 200K tokens, with a maximum output of 100K tokens.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try o3-pro in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.

Start freeQuickstart