East & Southeast Asia 🇯🇵 🇨🇳 🇻🇳 ➤ Cartesia's Sonic 3.6 leads Japanese and Vietnamese, while Inworld's Realtime TTS-2 ranks #1# in Mandarin. ➤ StepFun's StepAudio 2.5 TTS ranks #3# in Mandarin at 1,130 Elo, just 16 points behind Sonic 3.6. ➤ In Japanese, Inworld's Realtime TTS-2 ranks #2# at 1,123 Elo, ahead of ElevenLabs' v3 Conversational and Sonic 3.5. Japanese: Cartesia's Sonic 3.6 ranks #1# at 1,153 Elo, followed by Inworld's Realtime TTS-2 at 1,123 and ElevenLabs' v3 Conversational at 1,095. Sonic 3.5 and Eleven v3 round out the top 5 at 1,093 and 1,085. Mandarin: Inworld's Realtime TTS-2 ranks #1# at 1,185 Elo, followed by Sonic 3.6 at 1,146 and StepFun's StepAudio 2.5 TTS at 1,130. Alibaba's Qwen-Audio-3.0-TTS-Plus and MiniMax's Speech 2.8 Turbo round out the top 5. Vietnamese: Sonic 3.6 ranks #1# at 1,721 Elo, followed by ElevenLabs' v3 Conversational at 1,677 and Eleven v3 at 1,676. Sonic 3.5 ranks #4# at 1,650, followed by Realtime TTS-2 at 1,600.