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OpenRouter Text to Speech

OpenRouter TTS is a multimodal API abstraction layer that lets developers use different text-to-speech providers through a single interface. The documentation shows support for streaming audio responses, selectable voices, speech synthesis parameters, and multimodal message formatting compatible with OpenAI-style APIs. It is positioned as infrastructure for realtime voice apps, conversational agents, narration systems, and unified multimodal workflows where developers want provider flexibility without rewriting integrations for each model vendor.
New Multimodal Gen 3
Released: April 18, 2026

Overview

OpenRouter TTS is OpenRouter’s unified text-to-speech interface for accessing multiple speech-generation models through one API layer. It standardizes voice generation across providers, supporting streaming audio output, customizable voices, and multimodal workflows without provider-specific integration complexity.

About OpenRouter

OpenRouter is a unified API platform giving developers and enterprises access to 400+ large language models from 60+ providers — including OpenAI, Anthropic, Google, and Mistral — through a single OpenAI-compatible endpoint. Features automatic failover, cost optimization, real-time billing, edge infrastructure, and org-wide data policies. Serves 5M+ users across 250k+ apps. Founded 2023 by Alex Atallah and Louis Vichy. Backed by a16z, Menlo Ventures, and Sequoia Capital.

Industry: Artificial Intelligence
Company Size: 50
Location: New York, New York, US
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Tools using OpenRouter Text to Speech

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Last updated: May 15, 2026
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