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Hermes 4 405B

by nousresearch

Reasoning

Description

Hybrid-reasoning model trained on verified CoT traces for strong math, coding, and step-by-step reliability.

Providers

Pricing

Input$1.00 /1M tokens
Output$3.00 /1M tokens
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Specifications

Context128K tokens
Parameters405B
Licensellama3.1
Released

Capabilities

ReasoningToolsJSON ModeStreaming

EU-Compliant API Access

Use Hermes 4 405B 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: "hermes-4-405b",
    messages: [
      { role: "user", content: "Hello!" }
    ],
  }),
});

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

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