OpenAI Whisper / Realtime API

Master OpenAI's voice APIs: Whisper for transcription, gpt-4o Realtime for low-latency voice conversation, and the patterns for production voice AI.

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6

Lessons

💻

Code Examples

✅

Production-Ready

100%

Free

Lessons in This API

Work through these 6 lessons in order, or jump to whichever topic you need most.

Whisper API Fundamentals

Beginner

Whisper Large v3 Performance

Intermediate

Realtime API

Advanced

Realtime API Tool Use

Advanced

Voice Cost and Latency

Intermediate

Voice in Production

Advanced