ChatTTS Review
OSSOptimized for natural dialogue-style speech for LLM assistants; the licensing combination (AGPLv3+ code, CC BY-NC 4.0 weights, research/education only) rules out most commercial SaaS use without a separate deal.
Among the 46 text-to-speech tools we track, ChatTTS has the 38th-widest language coverage.
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What we know about ChatTTS
This is our verified profile of ChatTTS, a text-to-speech apis platform - optimized for natural dialogue-style speech for LLM assistants; the licensing combination (AGPLv3+ code, CC BY-NC 4.0 weights, research/education only) rules out most commercial SaaS use without a separate deal. Every fact about ChatTTS below carries the source it came from and the day we checked it.
ChatTTS does not publish a public per-minute rate we have been able to verify, so the price figure here stays blank until we can confirm one. We would rather show nothing than a guessed number; if you have a current ChatTTS quote, it is the fastest way for us to close that gap.
On capabilities, ChatTTS covers streaming audio output, emotion / style controls, and self-host / on-prem option, and does not offer instant voice cloning. Each of those is verified against ChatTTS's own docs or dashboard, not marketing copy.
ChatTTS ranks the 38th-widest language coverage of the 46 text-to-speech tools we track, so where it lands for you depends on which of those matters more.
In total we track 10 verified facts for ChatTTS today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the ChatTTS fact sheet below.
Reviewed by vsref Editorialfacts verified Jul 20, 2026Methodology →
Fact sheet
Every row independently verifiedConsidering a switch? Best ChatTTS alternatives →
STT in this stack
Text-to-speech is half of a voice pipeline: the other half is the speech-to-text that listens. Compare transcription engines on accuracy, streaming latency, and per-minute price: Deepgram, AssemblyAI, GPT-4o Transcribe, or the full speech-to-text comparison →
Voice agents in this stack
The engine is one layer: a voice agent speaks through its text-to-speech engine, but orchestration, telephony, and turn-taking come from the agent platform. Compare the platforms builders pair ChatTTS with: Pipecat, OpenAI Realtime API, Twilio ConversationRelay, or the full voice-agent comparison →
Distribute it
Most ChatTTS voiceover ends up in short-form video, and publishing that video across TikTok, YouTube, and Instagram is a scheduling problem with real per-channel pricing. Compare the schedulers creators actually run: Buffer, Postiz, Mixpost, or the social media scheduling platforms compared →
Avatar video in this stack
A cloned or bring-your-own ChatTTS voice does not have to stay audio-only: AI avatar video platforms lip-sync it onto a talking avatar for finished video. Compare the platforms: HeyGen, Synthesia, Hedra, or the full avatar-video comparison →