LMNT

What is LMNT?

LMNT is an AI text-to-speech platform for developers building conversational applications, agents, games, and other products that need generated voice. It provides an API, a browser playground, and voice cloning intended to produce studio-quality speech from a short recording.

The service supports 31 languages and can switch languages within a sentence. The homepage states streaming latency of 150-200 milliseconds, positioning the product for interactive voice experiences where the response must begin quickly. Developers can start from the API documentation or experiment in the free playground before integrating speech into an application.

How to Use LMNT

1. Open the playground to test available voices and generated speech.
2. Create an account and obtain API credentials for an application.
3. Select an existing voice or provide a five-second recording for voice cloning.
4. Send text through the API and choose regular or low-latency streaming output.
5. Connect the audio stream to a conversational app, agent, game, or other interface.

Core Features

• Text-to-speech API: Generates spoken audio for software products.
• Voice cloning: Creates a studio-quality voice clone from a five-second recording.
• Multilingual speech: Supports 31 languages and mid-sentence language switching.
• Low-latency streaming: The site reports 150-200 millisecond latency for interactive output.
• Developer playground: Lets users test speech and voices before integration.
• Production scaling: The website states there are no concurrency or rate limits and that volume pricing improves with usage.

Use Cases

• Conversational agents: Voice assistants can speak responses with low streaming delay.
• Games: Developers can generate character or narrative speech.
• Educational apps: Learning experiences can present material through generated voices.
• Voice-enabled products: Applications can add multilingual speech through the API.

Pricing

LMNT provides a free playground. The website describes volume-based pricing and custom enterprise plans but does not list exact prices on the homepage.

Frequently Asked Questions

How much audio is needed to clone a voice?

The homepage states that voice cloning requires a five-second recording.

How many languages does LMNT support?

The product lists 31 languages and supports switching languages within a sentence.

Is LMNT intended for realtime applications?

Yes. Its low-latency streaming is presented for conversational applications, agents, and games.