{"slug": "ai-chat-moderation-in-roblox-by-meaning-not-a-word-list", "title": "AI chat moderation in Roblox — by meaning, not a word list", "summary": "Cortex, an AI moderation tool for Roblox, replaces word-list chat filters with a model that reads message meaning, catching obfuscated toxicity while avoiding false positives. The tool bills on output tokens only, with cached repeated messages, and costs a fraction of a Robux. It is available as a free open beta with an open-source kit on GitHub.", "body_md": "Word-list chat filters break the moment someone types `a s s a s s i n`\n\nwith spaces, or a slur spelled with a `0`\n\n, or a perfectly innocent word that happens to contain a banned substring. You end up in an endless arms race patching your blocklist.\n\nAn AI model reads the **meaning** of a message, so it catches obfuscated toxicity and stops false-flagging harmless phrases.\n\n``` js\nlocal Cortex = require(game.ServerStorage.Cortex)\nlocal ai = Cortex.new(\"YOUR_KEY\")\n\nlocal verdict = ai:ask(\n    \"You moderate a kids' game chat. Reply with exactly one word: SAFE or BLOCK.\",\n    message\n)\nif verdict == \"BLOCK\" then\n    -- don't send it\nend\n```\n\nThe reply is one word, so it's cheap: with [Cortex](https://cortex-rbx.github.io) you're billed on **output tokens only**, and repeated messages are served from cache for free — so moderating your whole chat costs a fraction of a Robux. You pay in Robux, no credit card, and the key stays server-side.\n\n`BLOCK`\n\nverdicts so you can tune the prompt.Free open beta and open-source kit: [https://github.com/cortex-rbx/roblox-ai-kit](https://github.com/cortex-rbx/roblox-ai-kit) · demo: [https://cortex-rbx.github.io](https://cortex-rbx.github.io)", "url": "https://wpnews.pro/news/ai-chat-moderation-in-roblox-by-meaning-not-a-word-list", "canonical_source": "https://dev.to/korvus228/ai-chat-moderation-in-roblox-by-meaning-not-a-word-list-5pk", "published_at": "2026-08-23 12:16:33+00:00", "updated_at": "2026-08-23 12:43:50.412680+00:00", "lang": "en", "topics": ["artificial-intelligence", "natural-language-processing", "ai-products", "ai-tools", "ai-ethics"], "entities": ["Cortex", "Roblox", "GitHub"], "alternates": {"html": "https://wpnews.pro/news/ai-chat-moderation-in-roblox-by-meaning-not-a-word-list", "markdown": "https://wpnews.pro/news/ai-chat-moderation-in-roblox-by-meaning-not-a-word-list.md", "text": "https://wpnews.pro/news/ai-chat-moderation-in-roblox-by-meaning-not-a-word-list.txt", "jsonld": "https://wpnews.pro/news/ai-chat-moderation-in-roblox-by-meaning-not-a-word-list.jsonld"}}