What is LMNT?

LMNT is a text‑to‑speech API that delivers fast, lifelike audio with low latency (150‑200 ms) suitable for conversational applications, virtual agents, and interactive games. It supports unlimited studio‑quality voice cloning from a brief 5‑second recording and offers 24 language options, including the ability to switch languages mid‑sentence.

The service provides real‑time streaming without concurrency or rate limits, allowing continuous speech generation for live interactions. Developers can integrate LMNT via a straightforward REST API, with example code available in the official documentation, and can test functionality in an online playground.

LMNT pricing Freemium

Free $0

Indie $10/mo

Commercial $49/mo

Commercial license $199/mo

Verify on the official pricing page.

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LMNT's key features

Fast AI speech API
Unlimited studio-quality voice cloning
24 languages mid-sentence switching
150-200ms low-latency streaming
No concurrency or rate limits
Volume-based affordable pricing
Real-time speech-to-speech via LiveKit

LMNT use cases

Create lifelike voice responses for virtual customer support agents using LMNT's low‑latency TTS and 5‑second voice cloning to mimic agent voices instantly
Integrate LMNT into multiplayer games for real‑time character dialogue across 24 languages, delivering instant voice chat without lag
Deploy LMNT in multilingual e‑learning platforms to generate instant, natural‑sounding pronunciation guides and instant feedback for learners worldwide