The Rust local inference server now transcribes and labels speakers on the CPU behind OpenAI-style routes. Its 0.9.0 and 0.9.1 downloads shipped without CUDA.
AssemblyAI announced Universal-3.6 Pro Realtime on 2026-09-29—streaming STT for voice agents, model id universal-3-6-pro. Drop-in versus 3.5 Pro (still available). $0.45/hr; billed by WebSocket session duration.
A practical map of speech recognition, language models, speech synthesis, direct speech-to-speech models, streaming, and the latency measurements that matter.