by alibaba
Qwen3-Reranker-4B is a 4B-parameter multilingual cross-encoder reranker from the Qwen3 series. It scores query-document relevance for retrieval-augmented generation and search, with instruction-aware ranking across 100+ languages and a 32K context window.
Use Qwen3 Reranker 4B with a simple API call. OpenAI-compatible endpoint, EU data residency guaranteed.
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: "qwen3-reranker-4b",
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.