Back to Models

GPT-OSS 120B

by openai

Reasoning

Description

GPT-OSS 120B is OpenAI's open-weight reasoning model for agentic, coding, and general chat workloads.

Providers

Pricing

Input$0.04 /1M tokens
Output$0.20 /1M tokens
Get Your API Key

Specifications

Context131K tokens
Parameters120B
Licenseapache-2.0
ReleasedMay 2025

Capabilities

ReasoningToolsJSON ModeStreaming

EU-Compliant API Access

Use GPT-OSS 120B with a simple API call. OpenAI-compatible endpoint, EU data residency guaranteed.

JavaScript
const response = await fetch("https://api.eurouter.ai/api/v1/chat/completions", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": `Bearer ${process.env.EUROUTER_API_KEY}`,
  },
  body: JSON.stringify({
    model: "gpt-oss-120b",
    messages: [
      { role: "user", content: "Hello!" }
    ],
  }),
});

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

More from openai

Explore more

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.

Get Your API Key
GDPR by default
EU data residency
Smart routing