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How Ego uses Cartesia

As published on cartesia.ai, November 2024. Captured by usedby on Oct 8, 2026.

What happened

Ego builds an AI-native simulation engine for creating 3D characters, worlds and game scripts, and uses Cartesia's Sonic text-to-speech, voice cloning and voice changer to give its AI companions and NPCs real-time, emotionally expressive voices. This powers Thrall, a Valheim game mod where players direct an AI companion by voice.

Summary written by usedby from the source page, in English. The figures are those of Cartesia and Ego, not ours.

Ego’s launch of Thrall represents a breakthrough in NPC design—players can use natural voice commands to direct it in performing any task a human player would do, from gathering resources to engaging in combat.

From the page. cartesia.ai, captured Oct 8, 2026

Gaming has always been where communities form - from my generation’s World of Warcraft and Runescape to today’s Roblox and Minecraft. As games evolve into social platforms, AI characters need to feel genuinely human in both their responsiveness and emotional depth. Cartesia’s technology, with its ultra-low latency, natural voices, and precise emotional control, helps us create truly immersive worlds where AI characters feel alive and authentic.

Peggy Wang, Co-Founder and CTO, Ego, Ego. Source, captured Oct 8, 2026

What the story claims, and what we checked

We compared the story with its live page on Oct 8, 2026.

  • The passage quoted aboveCheckedCopied word for word from the page, near the name of Ego.
  • The numbers in our summaryCheckedEach one is printed on the page.
  • The publication dateCheckedRead from the page’s own metadata, never guessed.
  • Ego uses CartesiaCheckedConfirmed line. Latest check across sources: Oct 8, 2026.
  • The result itselfNot checkedWe quote it; we did not measure it.

Same company, same tool or same industry.

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