--- title: Tencent HY4 IS SOLID! Best Open-Weight Model? (FULLY FREE) description: Tencent has released HY/4, a 770-billion-parameter MoE model (49 billion active parameters) with a 1 million token context window, licensed under Apache 2.0.... canonical: https://daily.dev/posts/pnthexika twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Tencent HY4 IS SOLID! Best Open-Weight Model? (FULLY FREE) | daily.dev og:description: Tencent has released HY/4, a 770-billion-parameter MoE model (49 billion active parameters) with a 1 million token context window, licensed under Apache 2.0.... og:url: https://daily.dev/posts/pnthexika og:image: https://api.daily.dev/og/posts/pnthExika.png og:image:alt: Post cover image og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Tencent HY4 IS SOLID! Best Open-Weight Model? (FULLY FREE) **[nerdalytics](https://daily.dev/sources/jcwojcedqzpspqbvk73nc)** · [@nerdalytics](https://daily.dev/nerdalytics) · 3 upvotes · 0 comments ## Summary Tencent has released HY/4, a 770-billion-parameter MoE model (49 billion active parameters) with a 1 million token context window, licensed under Apache 2.0. It targets coding, agentic work, document analysis, and reasoning, ranking close behind Kimi K3 on benchmark leaderboards while being much smaller and cheaper ($0.83 per million input tokens, $2.50 per million output tokens). The model was compressed from roughly 1.5TB down to about 200GB with minimal benchmark score loss. Multiple side-by-side coding demos (Spider-Man game, Unity 3D game, Minecraft clone, ISS simulation) show it competing closely with GLM 5.3 Flash, Qwen, DeepSeek, and even approaching Opus 5 in web development output, though Kimi K3 is still preferred for visual design quality. The video is sponsored by Stream (getstream.io). ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#ai](https://daily.dev/tags/ai), [#open-source](https://daily.dev/tags/open-source), [#vibe-coding](https://daily.dev/tags/vibe-coding), [#mixture-of-experts](https://daily.dev/tags/mixture-of-experts) [View this post on daily.dev](https://daily.dev/posts/pnthexika) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/pnthexika","headline":"Tencent HY4 IS SOLID! Best Open-Weight Model? (FULLY FREE)","text":"Shared: Tencent HY4 IS SOLID! Best Open-Weight Model? (FULLY FREE)","url":"https://daily.dev/posts/pnthexika","datePublished":"2026-09-01T13:47:28.947Z","dateModified":"2026-09-01T13:48:21.442Z","author":{"@type":"Person","name":"nerdalytics","url":"https://daily.dev/nerdalytics","image":"https://avatars.githubusercontent.com/u/97166791?v=4","description":"Husband. Cat and dog dad. Nerd.","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":10830}},"image":"https://media.daily.dev/image/upload/s--CxzD6vbw--/f_auto/v1722860399/public/Placeholder%2005","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":3},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/U1nvyTXL8"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/sources/jcwojcedqzpspqbvk73nc","name":"nerdalytics"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"nerdalytics","item":"https://daily.dev/sources/jcwojcedqzpspqbvk73nc"},{"@type":"ListItem","position":3,"name":"Tencent HY4 IS SOLID! Best Open-Weight Model? (FULLY FREE)"}]} ```