Roblox brings real-time AI translation to in-game chat

Imagine shouting a quick tactical plan into game chat in English, while your Korean teammate reads it in fluent Korean and your German partner replies in German, all happening the moment you press send.

Roblox just rolled out a real-time AI chat translator supporting 16 languages. While most gaming companies spent the past year obsessing over generative content tools, Roblox is using large language models for something far more immediate: tearing down language barriers across its metaverse.

Translating 904 billion messages

For a platform as massive as Roblox, language friction has always been a massive bottleneck.

According to company figures, an average of 70 million daily active users connected on the platform across 180 countries in the year leading up to September 2023. Over that twelve-month stretch, players sent a staggering 904 billion messages to one another.

Now, any experience using Roblox's built-in TextChatService can translate conversations seamlessly across 16 supported languages on the fly.

Roblox CTO Daniel Sturman noted that the feature runs on a custom in-house large language model, designed specifically to translate between any pair of those 16 languages at typing speed.

Early testing has already paid off. Zhen Fang, head of international at Roblox, shared that initial trials showed noticeable jumps in player engagement, time spent, and overall session quality.

Sturman also teased what is next: the ultimate goal is full localization across every corner of the platform, including real-time AI voice translation.

Why it matters

We think this is one of the most practical and high-impact applications of LLMs in consumer tech right now. Instead of forcing experimental generative AI gimmicks onto creators, Roblox tackled its biggest structural problem: global network effects.

For everyday players, especially the millions of kids and teens who don't speak English, this fundamentally changes multiplayer dynamics. You no longer need a shared language to team up, trade items, or solve puzzles in 3D worlds. It works out of the box with zero effort from the user.

For creators, it instantly opens their games to an international audience without requiring dedicated localization budgets for community management.

That said, the real test will be content moderation and nuance. Gaming chats are notorious for slang, typos, and toxic bypasses. Making sure a fast-moving model does not misinterpret slang or let prohibited content slip through in translation will be tricky. Still, deploying instant AI translation to 70 million daily users is a masterclass in making AI genuinely useful today.