# AssemblyAI releases TTS-1 for voice agents at $15 per million characters

> AssemblyAI’s first text-to-speech model is aimed at voice agents, with six languages and unlimited concurrency offered without a contract.

Oossa · 2026-10-29 · https://oossa.com/en/assemblyai-releases-tts-1-for-voice-agents-at-15-per-million-characters

AssemblyAI has released AssemblyAI-TTS-1, its first text-to-speech model, designed for voice agents. The API costs $15 per 1 million characters and supports six languages at launch. AssemblyAI says it offers unlimited concurrency without requiring a contract; the announcement does not name the supported languages or provide details about availability beyond the release.

## The facts

- Price: $15 per 1 million characters.
- Launch support: six languages and unlimited concurrency without a contract.

## Why it matters

Teams building voice agents can assess a stated per-character price and concurrency offer, but will need more details to determine whether the six-language lineup fits their needs.

## Sources & references

1. [AssemblyAI Ships AssemblyAI-TTS-1: A $15 per 1M Character Text-to-Speech API for Voice Agents](https://www.marktechpost.com/2026/10/29/assemblyai-tts-1-text-to-speech-api-voice-agents/) – MarkTechPost, 2026-10-29

Last updated: 2026-10-29