Blog
Blog
Research, analysis, and benchmarks from the Speko team.
April 2026
Voice AI Is Not As Global As You Think
We sent the same audio through four leading streaming STT providers from three continents. Three of the four market themselves as global. Only one actually is. Here are the numbers — and their own docs.
April 2026
We Tried to Break Four Voice Agents with a Cough. We Failed.
We fed the same 400 ms cough into four production voice-agent stacks — OpenAI Realtime default and tuned, cascaded Deepgram Nova-3, cascaded ElevenLabs Scribe v2. Here are the clips and the engineering that explains why nothing broke.