Grok 4 est le mod\u00e8le phare de raisonnement de xAI, lanc\u00e9 le 9 juillet 2025 en tant que successeur de Grok 3. Il associe un raisonnement natif \u00ab cha\u00eene de pens\u00e9e \u00bb \u00e0 une compr\u00e9hension multimodale, acceptant \u00e0 la fois des entr\u00e9es textuelles et visuelles tout en produisant uniquement du texte. Le mod\u00e8le int\u00e8gre une fen\u00eatre de contexte de 256 000 jetons et \u00e9tait, au moment de son lancement, le syst\u00e8me le plus performant de xAI, obtenant d\u2019excellents r\u00e9sultats sur des benchmarks de raisonnement et d\u2019utilisation d\u2019outils tels qu\u2019Humanity\u2019s Last Exam et ARC-AGI, gr\u00e2ce notamment \u00e0 un acc\u00e8s en temps r\u00e9el \u00e0 X et au web.<\/p>\n
L\u2019acc\u00e8s est enti\u00e8rement propri\u00e9taire : il n\u2019existe pas de poids ouverts, et le mod\u00e8le fonctionne exclusivement via l\u2019API xAI, les applications Grok et l\u2019abonnement SuperGrok. Le tarif de l\u2019API s\u2019\u00e9l\u00e8ve \u00e0 3 $ par million de jetons d\u2019entr\u00e9e et \u00e0 15 $ par million de jetons de sortie, pla\u00e7ant Grok 4 dans la m\u00eame cat\u00e9gorie que les mod\u00e8les de pointe d\u2019OpenAI et d\u2019Anthropic, plut\u00f4t que dans la gamme \u00e9conomique.<\/p>\n
Verdict :<\/strong> Grok 4 est un v\u00e9ritable mod\u00e8le de raisonnement de classe fronti\u00e8re, dot\u00e9 de performances solides sur les benchmarks et d\u2019une recherche en direct, mais il n\u2019est pas bon march\u00e9 et a depuis \u00e9t\u00e9 rejoint par des variantes plus rapides et moins co\u00fbteuses (Grok 4 Fast, 4.20, 4.3). Optez pour Grok 4 lorsque vous avez besoin d\u2019un raisonnement exigeant au sein de l\u2019\u00e9cosyst\u00e8me xAI ; privil\u00e9giez une variante plus r\u00e9cente lorsque la latence ou le co\u00fbt comptent davantage que la puissance maximale.<\/p>","protected":false},"excerpt":{"rendered":" Grok 4 is xAI’s flagship reasoning model, launched on 9 July 2025 as the successor to Grok 3. It pairs […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"cm_developer":"xAI","cm_model_type":"Large language model (reasoning)","cm_modality":"Text + image input, text output","cm_parameters":"Undisclosed","cm_context_window":"256,000 tokens","cm_max_output":"Undisclosed","cm_license":"Proprietary","cm_open_weights":"no","cm_release_date":"July 9, 2025","cm_input_price":"3","cm_output_price":"15","cm_api_providers":"xAI API, OpenRouter, Vercel AI Gateway","cm_vram_fp16":"","cm_vram_q4":"","cm_min_gpu":"","cm_benchmarks":"","cm_official_url":"https:\/\/x.ai\/news\/grok-4"},"class_list":["post-1539","ai_model","type-ai_model","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/convly.ai\/fr\/wp-json\/wp\/v2\/ai_model\/1539","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/convly.ai\/fr\/wp-json\/wp\/v2\/ai_model"}],"about":[{"href":"https:\/\/convly.ai\/fr\/wp-json\/wp\/v2\/types\/ai_model"}],"wp:attachment":[{"href":"https:\/\/convly.ai\/fr\/wp-json\/wp\/v2\/media?parent=1539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}