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OpenAI Realtime API

Low-latency speech-to-speech API for genuinely conversational voice AI

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Looking for a tool like OpenAI Realtime API (Low-latency speech-to-speech API for genuinely conversational voice AI)? Below are 8 AI tools people use as an alternative to OpenAI Realtime API, ranked by leaderboard position. Each one is approved by our editors and worth comparing before you decide.

Cursor
Cursor

AI-first code editor, forked from VS Code

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GitHub Copilot
GitHub Copilot

The AI pair programmer most developers actually use

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Groq
Groq

Blazing-fast LLM inference on custom LPU chips

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Amazon Bedrock
Amazon Bedrock

One API for Claude, Llama, Titan, and more on AWS

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Azure OpenAI Service
Azure OpenAI Service

Enterprise access to OpenAI models via Microsoft Azure

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Cerebras
Cerebras

Wafer-scale AI chips built for blazing-fast inference

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Perplexity Sonar
Perplexity Sonar

Perplexity's API for adding live web search to AI apps

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Google AI Studio
Google AI Studio

Google's free playground for building with Gemini models

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