{"id":51,"date":"2025-09-23T08:27:11","date_gmt":"2025-09-23T06:27:11","guid":{"rendered":"https:\/\/edu.ge.ch\/site\/ia\/?p=51"},"modified":"2026-01-20T10:25:55","modified_gmt":"2026-01-20T09:25:55","slug":"le-paradoxe-des-gros-modeles-de-langages","status":"publish","type":"post","link":"https:\/\/edu.ge.ch\/site\/ia\/2025\/09\/23\/le-paradoxe-des-gros-modeles-de-langages\/","title":{"rendered":"Le paradoxe des gros mod\u00e8les de langages"},"content":{"rendered":"<div id=\"pl-51\"  class=\"panel-layout\"><div id=\"pg-51-0\"  class=\"panel-grid panel-no-style\"><div id=\"pgc-51-0-0\"  class=\"panel-grid-cell\"><div id=\"panel-51-0-0-0\" class=\"so-panel widget widget_sow-editor panel-first-child panel-last-child\" data-index=\"0\"><div\n\t\t\t\n\t\t\tclass=\"so-widget-sow-editor so-widget-sow-editor-base\">\n<div class=\"siteorigin-widget-tinymce textwidget\">\n\t<p>Il y a quelques semaines, Algorithmic Simplicity a publi\u00e9 une vid\u00e9o s\u2019int\u00e9ressant \u00e0 un \u00e9trange paradoxe : plus un mod\u00e8le est gros, moins il devrait \u00eatre capable de g\u00e9n\u00e9raliser, et ce n'est pourtant pas ce qu'on constate.<\/p>\n<p>D'abord, pourquoi un mod\u00e8le gros devrait-il \u00eatre moins bon ? C'est peut \u00eatre \u00e7a qui vous paraitra paradoxal. Eh bien, si un mod\u00e8le poss\u00e8de beaucoup de param\u00e8tres, il peut \"apprendre par c\u0153ur\" ses donn\u00e9es d'entra\u00eenement sans trouver de liens entre elles. C'est un peu comme si un \u00e9l\u00e8ve avait un cerveau assez gros pour tout m\u00e9moriser, sans faire de liens entre ses connaissances. Un tel mod\u00e8le serait excellent lors de l'entra\u00eenement mais incapable de g\u00e9n\u00e9raliser quand on lui donne de nouvelles donn\u00e9es. C'est ce qu'on appelle l'<em>overfitting<\/em>.<\/p>\n<p><\/p><\/div><\/div><\/div><\/div><\/div><\/div><p><p class=\"read-more-container\"><a title=\"Le paradoxe des gros mod\u00e8les de langages\" class=\"read-more content-read-more\" href=\"https:\/\/edu.ge.ch\/site\/ia\/2025\/09\/23\/le-paradoxe-des-gros-modeles-de-langages\/#more-51\" aria-label=\"En savoir plus sur Le paradoxe des gros mod\u00e8les de langages\">Lire la suite<\/a><\/p><\/p>","protected":false},"excerpt":{"rendered":"<p>Il y a quelques semaines, Algorithmic Simplicity a publi\u00e9 une vid\u00e9o s\u2019int\u00e9ressant \u00e0 un \u00e9trange paradoxe : plus un mod\u00e8le est gros, moins il devrait \u00eatre capable de g\u00e9n\u00e9raliser, et ce n&rsquo;est pourtant pas ce qu&rsquo;on constate.D&rsquo;abord, pourquoi un mod\u00e8le gros devrait-il \u00eatre moins bon ? C&rsquo;est peut \u00eatre \u00e7a qui vous paraitra paradoxal. Eh &#8230; <a title=\"Le paradoxe des gros mod\u00e8les de langages\" class=\"read-more\" href=\"https:\/\/edu.ge.ch\/site\/ia\/2025\/09\/23\/le-paradoxe-des-gros-modeles-de-langages\/\" aria-label=\"En savoir plus sur Le paradoxe des gros mod\u00e8les de langages\">Lire la suite<\/a><\/p>\n","protected":false},"author":24,"featured_media":52,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-51","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le paradoxe des gros mod\u00e8les de langages - IA et enseignement, un site du SEM<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/edu.ge.ch\/site\/ia\/2025\/09\/23\/le-paradoxe-des-gros-modeles-de-langages\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le paradoxe des gros mod\u00e8les de langages - IA et enseignement, un site du SEM\" \/>\n<meta property=\"og:description\" content=\"Il y a quelques semaines, Algorithmic Simplicity a publi\u00e9 une vid\u00e9o s\u2019int\u00e9ressant \u00e0 un \u00e9trange paradoxe : plus un mod\u00e8le est gros, moins il devrait \u00eatre capable de g\u00e9n\u00e9raliser, et ce n&#039;est pourtant pas ce qu&#039;on constate.D&#039;abord, pourquoi un mod\u00e8le gros devrait-il \u00eatre moins bon ? C&#039;est peut \u00eatre \u00e7a qui vous paraitra paradoxal. Eh ... Lire la suite\" \/>\n<meta property=\"og:url\" content=\"https:\/\/edu.ge.ch\/site\/ia\/2025\/09\/23\/le-paradoxe-des-gros-modeles-de-langages\/\" \/>\n<meta property=\"og:site_name\" content=\"IA et enseignement, un site du SEM\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-23T06:27:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-20T09:25:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/edu.ge.ch\/site\/ia\/wp-content\/uploads\/sites\/280\/2025\/09\/4-cerveaux.png\" \/>\n\t<meta property=\"og:image:width\" content=\"708\" \/>\n\t<meta property=\"og:image:height\" content=\"344\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Eric Vanoncini\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Eric Vanoncini\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/2025\\\/09\\\/23\\\/le-paradoxe-des-gros-modeles-de-langages\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/2025\\\/09\\\/23\\\/le-paradoxe-des-gros-modeles-de-langages\\\/\"},\"author\":{\"name\":\"Eric Vanoncini\",\"@id\":\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/#\\\/schema\\\/person\\\/8e90fec62a1c57c276d543499ab250e4\"},\"headline\":\"Le paradoxe des gros mod\u00e8les de langages\",\"datePublished\":\"2025-09-23T06:27:11+00:00\",\"dateModified\":\"2026-01-20T09:25:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/2025\\\/09\\\/23\\\/le-paradoxe-des-gros-modeles-de-langages\\\/\"},\"wordCount\":465,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/2025\\\/09\\\/23\\\/le-paradoxe-des-gros-modeles-de-langages\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/wp-content\\\/uploads\\\/sites\\\/280\\\/2025\\\/09\\\/4-cerveaux.png\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/2025\\\/09\\\/23\\\/le-paradoxe-des-gros-modeles-de-langages\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/2025\\\/09\\\/23\\\/le-paradoxe-des-gros-modeles-de-langages\\\/\",\"url\":\"https:\\\/\\\/edu.ge.ch\\\/site\\\/ia\\\/2025\\\/09\\\/23\\\/le-paradoxe-des-gros-modeles-de-langages\\\/\",\"name\":\"Le paradoxe des gros mod\u00e8les de langages - 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