OuteTTS Review

What we know about OuteTTS

OuteTTS sits in the text-to-speech apis category, where it is the llama.cpp-native option: runs via GGUF on CUDA/ROCm/Vulkan/Metal and even in the browser (Transformers.js). License splits by model: the 0.6B (Qwen3-based) is Apache-2.0, the 1B Llama-based flagship is CC-BY-NC-SA-4.0 (non-commercial). We keep this OuteTTS profile grounded in primary sources, each fact dated to when we last confirmed it.

OuteTTS 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 OuteTTS quote, it is the fastest way for us to close that gap.

On capabilities, OuteTTS covers instant voice cloning and self-host / on-prem option. Each of those is verified against OuteTTS's own docs or dashboard, not marketing copy.

Among the 46 text-to-speech tools in our matrix, OuteTTS leads with the 18th-widest language coverage; the fact sheet below has the raw numbers behind that placement.

In total we track 9 verified facts for OuteTTS 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 OuteTTS fact sheet below.

Reviewed by vsref Editorial·facts verified Jul 20, 2026·Methodology →