Async is a low-latency text-to-speech API platform targeting voice app and agent developers. It offers drop-in integrations with frameworks like Pipecat, LiveKit, and n8n, supports 15 languages, voice cloning without training, SSML-style controls (IPA phonemes, break tags, speech rate), and two model tiers: Flash for real-time/low-latency use cases and Pro for premium quality content generation. Pricing starts at $0.50/hour with 24/7 SLA.
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