--- title: Roblox makes three of its AI safety tools open source description: Roblox is open-sourcing three AI safety models—its PII Classifier, Roblox Sentinel, and voice safety classifier—through ROOST, the nonprofit it co-founded with... canonical: https://daily.dev/posts/roblox-makes-three-of-its-ai-safety-tools-open-source-cz5ms0ls6 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Roblox makes three of its AI safety tools open source | daily.dev og:description: Roblox is open-sourcing three AI safety models—its PII Classifier, Roblox Sentinel, and voice safety classifier—through ROOST, the nonprofit it co-founded with... og:url: https://daily.dev/posts/roblox-makes-three-of-its-ai-safety-tools-open-source-cz5ms0ls6 og:image: https://api.daily.dev/og/posts/cz5MS0LS6.png og:image:alt: Roblox makes three of its AI safety tools open source 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. # Roblox makes three of its AI safety tools open source **[GamesIndustry.biz](https://daily.dev/sources/gamesindustry)** · 2 min read · 0 upvotes · 0 comments ## Summary Roblox is open-sourcing three AI safety models—its PII Classifier, Roblox Sentinel, and voice safety classifier—through ROOST, the nonprofit it co-founded with Google, OpenAI, and Discord in 2025. The PII Classifier detects attempts to share personal information, Sentinel flags early signs of child endangerment, and the voice classifier moderates real-time voice chat across 30 languages and eight violation categories. Roblox is also releasing evaluation datasets to help other companies test their own moderation systems. The news comes as the US Senate Judiciary Subcommittee investigates Roblox over child safety concerns, requiring records by August 31, 2026. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What AI safety models has Roblox open sourced through ROOST? Roblox open sourced three AI safety models through the ROOST (Robust Open Online Safety Tools) nonprofit: a PII Classifier that detects attempts to share personally identifiable information including misspellings and coded language, Roblox Sentinel which detects early signs of potential child endangerment, and a voice safety classifier that moderates real-time voice chat in 30 languages across eight violation categories. _Teams building moderation pipelines can track open-source safety tooling releases like these on daily.dev._ ### What is ROOST and who founded it? ROOST (Robust Open Online Safety Tools) is an independent nonprofit that develops and maintains open-source infrastructure for online safety. It was co-founded in 2025 by Roblox, Google, OpenAI, and Discord to let companies share and improve safety and moderation technology collaboratively. _Anyone evaluating multi-company safety infrastructure initiatives can follow ROOST developments via daily.dev._ ## Similar posts on daily.dev - [Roblox launches real-time AI chat rephrasing to filter out banned language](https://daily.dev/posts/roblox-launches-real-time-ai-chat-rephrasing-to-filter-out-banned-language-3qc53qahm) · TechCrunch · 1 upvotes · 0 comments - [Roblox announces AI-driven upscaler called Roblox Reality](https://daily.dev/posts/roblox-announces-ai-driven-upscaler-called-roblox-reality-wwiwdz7av) · GamesIndustry.biz · 0 upvotes · 0 comments - [Report: Canada federal gov concerned about Roblox kids' safety](https://daily.dev/posts/report-canada-federal-gov-concerned-about-roblox-kids-safety-dlbcoz4qg) · Game Developer · 0 upvotes · 0 comments --- Tags: [#open-source](https://daily.dev/tags/open-source) [View this post on daily.dev](https://daily.dev/posts/roblox-makes-three-of-its-ai-safety-tools-open-source-cz5ms0ls6) ```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":"TechArticle","headline":"Roblox makes three of its AI safety tools open source","url":"https://daily.dev/posts/roblox-makes-three-of-its-ai-safety-tools-open-source-cz5ms0ls6","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/roblox-makes-three-of-its-ai-safety-tools-open-source-cz5ms0ls6"},"datePublished":"2026-08-21T10:37:25.148Z","dateModified":"2026-08-21T10:38:12.843Z","description":"Roblox is open-sourcing three AI safety models—its PII Classifier, Roblox Sentinel, and voice safety classifier—through ROOST, the nonprofit it co-founded with...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/eed9739b5458128c036b1bdd0bec5d8f?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/eed9739b5458128c036b1bdd0bec5d8f?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"GamesIndustry.biz","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"GamesIndustry.biz","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/be1a78592d5340248e5204f8007b82be","url":"https://daily.dev/sources/gamesindustry"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/roblox-makes-three-of-its-ai-safety-tools-open-source-cz5ms0ls6","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"open-source","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"GamesIndustry.biz","item":"https://daily.dev/sources/gamesindustry"},{"@type":"ListItem","position":3,"name":"Roblox makes three of its AI safety tools open source"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/roblox-makes-three-of-its-ai-safety-tools-open-source-cz5ms0ls6#faq","mainEntity":[{"@type":"Question","name":"What AI safety models has Roblox open sourced through ROOST?","acceptedAnswer":{"@type":"Answer","text":"Roblox open sourced three AI safety models through the ROOST (Robust Open Online Safety Tools) nonprofit: a PII Classifier that detects attempts to share personally identifiable information including misspellings and coded language, Roblox Sentinel which detects early signs of potential child endangerment, and a voice safety classifier that moderates real-time voice chat in 30 languages across eight violation categories. 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