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AIMarkTechPost · 29d ago

Lowest-Latency Inference APIs for Voice and Realtime Agents: A Time to First Token TTFT-First Benchmark

A benchmark measured time to first token latency across voice agent stack layers including LLM, speech-to-text, text-to-speech, and speech-to-speech systems, with data verified August 30, 2026. Each latency figure was labeled as independently measured, vendor-published, or vendor-measured on its own product.

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