AI ranking change · 2026-07-10
Cartesia overtakes Cartesia Sonic as ChatGPT's #1 pick
for text-to-speech api for voice agents
Cartesia Sonic→Cartesia
On 2026-07-10, ChatGPT changed its #1 recommendation for best text-to-speech api for voice agents — dropping Cartesia Sonic from the top spot in favor of Cartesia. The previous #1 had held since 2026-07-10.
“Best overall balance of ultra-low latency, natural conversational prosody, reliable streaming, voice cloning, and fine-grained speed/emotion controls purpose-built for real-time agents”— ChatGPT
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