{
  "id": 17070662,
  "title": "Mistral Large 4 (Le Chonk) is now Open Weight",
  "url": "https://urgent.news/2026/10/29/mistral-large-4-le-chonk-is-now-open-weight",
  "topic": "ai",
  "section": "AI",
  "published": "2026-10-29T14:13:21.000Z",
  "source": {
    "name": "Hacker News",
    "slug": "hacker-news",
    "url": "https://mistral.ai/news/mistral-large-4-oss/"
  },
  "original_language": "en",
  "account": "Mistral Large 4, a 1-trillion-parameter multimodal model, has been released as open-weight and trained on European infrastructure. This model demonstrates exceptional performance in coding and cybersecurity tasks. It offers three reasoning modes to balance cost and performance. Since its public preview, Mistral Large 4 has shown significant improvements in coding efficiency, leading benchmarks like FrontierCode and Terminal-Bench. It also excels in cybersecurity, scoring 51% on the Artificial Analysis Cyber Index, which measures its ability to discover vulnerabilities, reproduce them, and validate patches. The model's built-in guardrails ensure it handles defensive security tasks without refusing legitimate requests. Enterprises can customize Mistral Large 4 using Mistral Forge, tailoring it to their specific security data, policies, and threat environments.",
  "summary": null,
  "key_points": [
    "Mistral Large 4 is a 1-trillion-parameter multimodal model",
    "Open-weight and trained on European infrastructure",
    "Excels in coding, cybersecurity, and customizable for enterprises"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}