> ## Content Index > Fetch the complete content index at: https://news.lispresso.ai/llms.txt > Use this file to discover other available public pages before exploring further. # Mistral opens its trillion-parameter model - URL: https://news.lispresso.ai/mistral-opens-its-trillion-parameter-model/ - Published: 2026-10-31T20:25:21.000Z - Updated: 2026-10-31T20:25:21.000Z - Author: Edward Yen **Saturday, 31 October 2026 ยท 3-minute read** Hi, and welcome to the first Lispresso. Here's what mattered in AI this week: - Mistral releases a trillion-parameter model anyone can download - OpenAI backs one robots.txt signal for AI training - Reddit moves toward logged-in only - OpenAI updates the rulebook for its models ## [Mistral opens its trillion-parameter model](https://mistral.ai/news/mistral-large-4-oss/?ref=news.lispresso.ai) - Mistral has released the weights of Mistral Large 4, nicknamed "Le Chonk", so anyone can download and run it. - It is a 1-trillion-parameter multimodal model trained in Europe, which Mistral calls the best open-weight model for coding. - Teams that can't send code or security data to a closed API now have a frontier-scale model they can host themselves, but even in compressed form it is about 578 GB and vLLM runs it on four or more data-centre GPUs, so plan on serious hardware or a hosted version. Read more: [Le Chonk: Built for Coders, Trusted by Defenders.](https://mistral.ai/news/mistral-large-4-oss/?ref=news.lispresso.ai) (Mistral AI); [Day 0 support for Mistral Large 4 on vLLM](https://vllm.ai/blog/2026-10-29-mistral-large-4?ref=news.lispresso.ai) (vLLM project) ## [OpenAI backs a shared signal for AI training](https://openai.com/index/helping-websites-express-ai-training-preferences?ref=news.lispresso.ai) - OpenAI says it will honour a shared robots.txt signal that lets website owners state their preferences on AI training. - The signal is shared, so one line in robots.txt speaks to every participating provider. - If more providers sign on, opting out of AI training gets much simpler; until then, keep your per-crawler rules, because the signal only covers providers that take part. Read more: [Making it easier for websites to express AI training preferences](https://openai.com/index/helping-websites-express-ai-training-preferences?ref=news.lispresso.ai) (OpenAI) ## [Reddit moves toward logged-in only](https://www.engadget.com/2301687/reddit-will-move-to-logged-in-only-as-ai-eats-search-traffic/?ref=news.lispresso.ai) - Reddit says it will require people to log in to use the site, as AI answers eat into the traffic it gets from search. - It is starting with tests outside the US. - When search sends fewer visitors, sites have less reason to stay open to anonymous readers, and Reddit is now testing what happens when it stops. Read more: [Reddit will force users to log in as AI is killing search traffic](https://www.engadget.com/2301687/reddit-will-move-to-logged-in-only-as-ai-eats-search-traffic/?ref=news.lispresso.ai) (Engadget) ## [OpenAI updates the rulebook for its models](https://openai.com/index/updated-model-spec?ref=news.lispresso.ai) - OpenAI has published an updated Model Spec, its public document on how its models should behave. - The new version is built around five core values, including sound judgment, human agency and faithfulness to human intent. - If you build on OpenAI's models, the Spec is the clearest statement of the defaults you'll be working with, so read it before you write prompts that fight them. Read more: [An updated Model Spec for more capable and beneficial AI](https://openai.com/index/updated-model-spec?ref=news.lispresso.ai) (OpenAI) ## Other news you might like - [Senators are looking into 'serious privacy risks' with Meta's AI glasses](https://www.engadget.com/2301968/senators-looking-into-serious-privacy-risks-with-meta-ai-glasses/?ref=news.lispresso.ai) (Engadget) - [Waymo and Toyota will soon start testing their robotaxis in Japan](https://www.engadget.com/2301972/waymo-toyota-soon-start-testing-bz4x-robotaxis-japan/?ref=news.lispresso.ai) (Engadget) - [The Wikimedia Foundation weighs in on the NYT's case against OpenAI](https://www.engadget.com/2302374/the-wikimedia-foundation-weighs-in-on-the-nyts-case-against-openai/?ref=news.lispresso.ai) (Engadget) --- That's it for today. Which of these four would you have skipped? Hit reply and tell us. See you next time, Lispresso *How we make Lispresso: we read public feeds from the publishers we credit, write each story in our own words and link to the original. AI tools help with drafting, and a person approves every issue before it goes out. Spot a mistake? Reply and we'll correct it in the next issue and in the archive.*