Cartesia Releases Sonic-3.6, Topping Speech Leaderboards

Cartesia has launched Sonic-3.6, a TTS model covering 44 languages with improved naturalness, topping both Artificial Analysis speech leaderboards with an Elo of 1123 and generating nearly 3x faster than Eleven v3.

2026-08-18 ~ 2026-08-18 · 4 related posts

• Cartesia's Sonic 3.6 tops both speech arena leaderboards, nearly 3x faster than Eleven v3 — ArtificialAnlys · 2026-08-18
• Cartesia Sonic 3.6 tops Artificial Analysis speech Elo leaderboard at 1123 — ArtificialAnlys · 2026-08-18
• Cartesia releases Sonic-3.6, claiming top spot on TTS leaderboards — HazyResearch · 2026-08-18
• Cartesia releases Sonic-3.6 with improved naturalness across 44 languages — iamaliveix · 2026-08-18