{"rewrite":{"id":"r_e9bb43080830e22bb8e2bc52","clusterId":"c_e7042a8199e53e1f424a2ad3","slug":"mozilla-adds-mistral-small-4-to-firefox-s-smart-window-beta","model":"deepseek-v4-1-flash","headline":"Mozilla Adds Mistral Small 4 to Firefox's Smart Window Beta","summary":"Mozilla has entered a partnership with France-based AI developer Mistral AI. Under the agreement, Mistral Small 4 can be selected as a model in Firefox's beta Smart Window, a test window alongside the normal and private windows that groups tabs, hosts chat, and answers questions. Mozilla cites multilingual performance and has added French as a supported language, with further European expansion planned in 2026.","whyItMatters":"Mozilla's stated reason for picking an open-weight, Apache-licensed European model is multilingual performance, which ties browser AI defaults to language coverage rather than raw model scale.","webCardHtml":"\u003cp\u003eSmart Window test availability has begun for users in the United States, Canada, and France. The window can analyze and group open tabs, hold a conversation with an AI, and take questions that turn into web searches.\u003c/p\u003e\u003cp\u003eMistral Small 4 is developed as an open model and distributed under the Apache License 2.0. Mozilla said it chose the model for its multilingual support in the beta. Firefox already ships a local-AI translation feature and a sidebar chat.\u003c/p\u003e","blueskyPost":"Mozilla and Mistral AI have signed a partnership. Mistral Small 4 is now selectable in Firefox's beta Smart Window, which is being tested in the US, Canada, and France. Mozilla cites multilingual support and has added French, with more Europe expansion planned in 2026.","twitterPost":"Mozilla partners with Mistral AI. Mistral Small 4 is now selectable in Firefox's beta Smart Window, tested in the US, Canada, and France. Mozilla cites multilingual support, adds French, and plans further Europe expansion in 2026.","threadsPost":null,"newsletterBlurb":"Mozilla has partnered with France-based Mistral AI, and Mistral Small 4 can now be chosen as a model inside Firefox's beta Smart Window. Mozilla said the deciding factor was multilingual performance in the beta, and it has added French to the supported languages. Smart Window testing covers the US, Canada, and France, with more European expansion planned in 2026.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20260917-firefox-ai-mozilla-mistral/\",\"title\":\"Mozilla Partners with AI Company Mistral AI to Expand Firefox's AI Features\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4708,"outputTokens":549,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1789612169,"createdAt":"2026-09-17T02:24:36.000Z","publishedAt":"2026-09-17T02:28:23.000Z","updatedAt":"2026-09-17T02:28:23.000Z"},"cluster":{"id":"c_e7042a8199e53e1f424a2ad3","canonicalTitle":"FirefoxのAI機能を拡充するべくMozillaがAI企業「Mistral AI」とパートナーシップを締結","representativeArticleId":"a_b0be53c119ab7e3bb85da072","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Firefox\",\"Smart Window\",\"Mistral Small 4\"],\"studios\":[\"Mozilla\",\"Mistral AI\"],\"people\":[],\"type\":\"business\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-09-17T01:42:00.000Z","lastSeenAt":"2026-09-17T01:42:00.000Z","updatedAt":"2026-09-17T02:28:21.000Z"},"attribution":[{"source":"GIGAZINE","url":"https://gigazine.net/news/20260917-firefox-ai-mozilla-mistral/","title":"FirefoxのAI機能を拡充するべくMozillaがAI企業「Mistral AI」とパートナーシップを締結"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Firefox","Smart Window","Mistral Small 4"],"studios":["Mozilla","Mistral AI"],"people":[],"type":"business","domain":"other","is_roundup":false},"keyFacts":null}