Cartesia's Sonic 3.6 now leads the controlled-voice arena at 1,117 Elo, ahead of ElevenLabs v3, at $49 per million characters — with the full table showing quality and price diverging sharply across providers.

• articleSee the full results for GLM-5.3 at
• article➤ Leaderboard: ➤ Methodology: ➤ Stirrup, our open-source agent harness: Search A
• articleSee Artificial Analysis for further details and benchmarks:
• articleFor further analysis, see

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