AI ranking change · 2026-07-15
Cartesia Sonic overtakes ElevenLabs as Claude's #1 pick
for text-to-speech api for voice agents
ElevenLabs→Cartesia Sonic
On 2026-07-15, Claude changed its #1 recommendation for best text-to-speech api for voice agents — dropping ElevenLabs from the top spot in favor of Cartesia Sonic. The previous #1 had held since 2026-07-14.
“Purpose-built for real-time agents — ~40-90ms time-to-first-byte over WebSockets, word-level timestamps for interruption handling, native integrations in Pipecat/LiveKit/Vapi, and per-character pricing that undercuts ElevenLabs at production scale; near-tie with ElevenLabs, ranked first because latency and streaming ergonomics matter more than peak fidelity in a live agent loop.”— Claude
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