AI TOOL PROFILE

Inworld: Voice AI Platform for Realtime Applications

Inworld helps software companies develop voice-first agents and companions. It is designed for teams requiring low-latency audio streaming and compliance standards like HIPAA and GDPR.

Pricing

Inworld uses usage-based pricing. The TTS-1.5 Mini tier is $5 per million characters, and the Max tier is $10 per million characters; LLM and Realtime API costs are based on the underlying model usage.

At a glance

Best for
Software Companies, AI Developers, App Developers
Key use cases
Realtime Voice Companions, Educational Tools, Health Applications, Interactive Media Agents
Visit InworldInworld software interface screenshot

How AI is used

Inworld is a developer-focused voice AI platform designed to support the creation of realtime, interactive voice experiences. It provides a suite of tools including a Text-to-Speech engine with sub-200ms latency, Speech-to-Text capabilities, and a router that allows developers to access over 220 different LLM models.

The platform is intended for software developers creating voice-first companions, educational tools, or health applications. It supports full-duplex audio streaming to help interactions feel more natural.

For business buyers, the platform includes security features such as SOC 2 Type II certification and zero-data retention options. This may be a fit for industries with strict data privacy requirements.

Buyers should confirm their specific latency needs and review the usage-based pricing to ensure the model costs align with their project budget.

Key Features

  • Text-to-Speech (TTS)

    Provides voice synthesis with sub-200ms latency and options for voice cloning.

  • LLM Router

    An API that routes requests across 220+ LLM models from providers such as OpenAI, Anthropic, and Google.

  • Speech-to-Text (STT)

    Offers semantic speech recognition and bidirectional streaming over WebSocket for live audio transcription.

  • Realtime API

    Supports full-duplex audio streaming and intelligent turn-taking to manage conversational flow.

  • Function Calling

    Allows assistants to call registered tools mid-session without interrupting the audio stream.

  • Compliance Standards

    Includes SOC 2 Type II certification and is designed for HIPAA and GDPR compliance.

Use Cases

  • Realtime Voice Companions

    Building AI companions designed for relationship-building and emotional connection.

  • Educational Tools

    Creating voice-first learning applications that provide interactive tutoring.

  • Health Applications

    Developing voice agents for health-related services using HIPAA compliance.

  • Interactive Media Agents

    Developing agents for entertainment and interactive media that require low-latency responses.

FAQ

How is Inworld billed?

Inworld uses a usage-based credit system where TTS is billed per million characters and LLM usage is billed at the provider's cost with no markup.

Is Inworld suitable for healthcare applications?

Yes, the platform is designed for health applications and supports HIPAA compliance.

Which LLM models does Inworld support?

The LLM Router provides access to over 220 models from providers including OpenAI, Anthropic, Google, Mistral, and xAI.

Source category: Software Development

Source subcategory: Voice AI

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