SMRTR AIJun 25, 2025Hacker News

OpenAI Charges by the Minute, So Make the Minutes Shorter

SMRTR summary

A developer discovered that speeding up audio files before transcribing them with OpenAI's API can significantly reduce costs and processing time. By using ffmpeg to increase playback speed to 2x or 3x, transcription quality remains high while reducing audio tokens by up to 33%. This technique could save time and money for those frequently using AI transcription services.

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