Text to Speech

Benchmarks and comparisons of TTS APIs and voice AI platforms, covering voice quality, latency, pricing, and realtime speech synthesis.

5 articles

We tested the leading realtime voice agent APIs head to head.

We ran 16 AI voice providers through the same scene from Pride & Prejudice. Now it's your turn to pick the winner, blind.

A practical blind comparison of xAI's Grok TTS and OpenAI's gpt-realtime-2 voice model across six real-world scenarios.

xAI's Grok TTS offers expressive speech tags, a realtime voice agent API, and pricing that undercuts ElevenLabs by 12x. Here's what it actually does.

I put ElevenLabs and Smallest.ai head-to-head across TTS voice quality, realtime voice agents, voice cloning, latency, and cost.