Grok 4 es el modelo de razonamiento insignia de xAI, lanzado el 9 de julio de 2025 como sucesor de Grok 3. Combina de forma nativa el razonamiento paso a paso con una comprensi\u00f3n multimodal, aceptando entradas de texto e imagen y generando salidas de texto. El modelo incluye una ventana de contexto de 256 000 tokens y, en el momento de su lanzamiento, era el sistema m\u00e1s capaz de xAI, obteniendo excelentes resultados en benchmarks de razonamiento y uso de herramientas como Humanity's Last Exam y ARC-AGI, gracias al acceso en tiempo real a X y a la web.<\/p>\n
El acceso es completamente propietario: no existen pesos abiertos, y el modelo solo se ejecuta mediante la API de xAI, las aplicaciones Grok y la suscripci\u00f3n SuperGrok. El precio de la API es de 3 USD por cada mill\u00f3n de tokens de entrada y de 15 USD por cada mill\u00f3n de tokens de salida, lo que lo sit\u00faa en la misma categor\u00eda que los modelos punteros de OpenAI y Anthropic, y no en la categor\u00eda econ\u00f3mica.<\/p>\n
Veredicto:<\/strong> Grok 4 es un aut\u00e9ntico modelo de razonamiento de vanguardia, con s\u00f3lidos resultados en benchmarks y b\u00fasqueda en tiempo real, pero no es econ\u00f3mico y, desde entonces, ha sido complementado por variantes m\u00e1s r\u00e1pidas y menos costosas (Grok 4 Fast, 4.20 y 4.3). El\u00edjalo para tareas de razonamiento exigentes dentro del ecosistema de xAI; opte por una variante m\u00e1s reciente cuando la latencia o el precio sean m\u00e1s importantes que la capacidad m\u00e1xima.<\/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\/es\/wp-json\/wp\/v2\/ai_model\/1539","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/convly.ai\/es\/wp-json\/wp\/v2\/ai_model"}],"about":[{"href":"https:\/\/convly.ai\/es\/wp-json\/wp\/v2\/types\/ai_model"}],"wp:attachment":[{"href":"https:\/\/convly.ai\/es\/wp-json\/wp\/v2\/media?parent=1539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}