o3

by openai

Chat

Description

o3 is OpenAI's flagship reasoning model with exceptional performance on complex mathematical, scientific, and coding tasks. Features advanced chain-of-thought reasoning with configurable compute levels.

Providers

Azure OpenAI

View provider details and policies.

Pricing

Input$2.00 /1M tokens

Output$8.00 /1M tokens

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Specifications

Context200K tokens

Parameters—

License—

Released—

Capabilities

ToolsJSON ModeStreaming

EU-Compliant API Access

Use o3 with a simple API call. OpenAI-compatible endpoint, EU data residency guaranteed.

JavaScript

const response = await fetch("https://api.eurouter.ai/v1/chat/completions", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": `Bearer ${process.env.EUROUTER_API_KEY}`,
  },
  body: JSON.stringify({
    model: "o3",
    messages: [
      { role: "user", content: "Hello!" }
    ],
  }),
});

const data = await response.json();
console.log(data.choices[0].message.content);

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Azure OpenAI provider

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Browse all models

Explore the full EUrouter model catalog.

Models API

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Quickstart

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Integrate AI without GDPR risk.

You need AI that won't create compliance headaches. Your data stays in the EU, GDPR is enforced by default, and every request is routed for the best balance of cost, latency, and uptime — reducing risk while improving performance.

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GDPR by default

EU data residency

Smart routing