by nvidia
Llama 3.1 Nemotron Ultra 253B is Nvidia's flagship reasoning model, created by converting Meta's Llama 3.1 405B from dense to MoE architecture. Features 253B total parameters with ~17B active per token, Dynamic Thinking with toggleable reasoning, tool calling, and structured outputs.
Use Llama 3.1 Nemotron Ultra 253B with a simple API call. OpenAI-compatible endpoint, EU data residency guaranteed.
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: "llama-3.1-nemotron-ultra-253b",
messages: [
{ role: "user", content: "Hello!" }
],
}),
});
const data = await response.json();
console.log(data.choices[0].message.content);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.