How Loka Built a Natural, Low-Latency Voice Agent with Amazon Nova 2 Sonic
Loka built a low-latency voice agent on Amazon Nova 2 Sonic that outscored rival speech-to-speech models on speech reasoning.
“Amazon Nova 2 Sonic achieved a speech reasoning score of 87.0.”
Loka used Amazon Nova 2 Sonic's native speech-to-speech architecture to build a faster, cheaper voice agent that avoids the latency of traditional STT-LLM-TTS pipelines. Nova 2 Sonic scored 87.0 on the Big Bench Audio speech reasoning benchmark, beating GPT Realtime (83.0) and Gemini 2.5 Flash Native Audio (71.0), signaling competitive momentum in real-time voice AI.