Best Speech-to-Text and AI Voice APIs in 2026: Hosted and Open Source Compared
A developer comparison of the best speech-to-text and AI voice APIs in 2026: Speechmatics Melia-1, AssemblyAI Universal-3.5 Pro, Deepgram Nova-3 and Flux, ElevenLabs Scribe v2, OpenAI and Google, plus open-source options like Whisper, Parakeet and Moonshine. Real pricing, verified code, and the billing details nobody puts on the pricing page.
DevToolLab Team·
