Whisper vs AssemblyAI vs Deepgram: Best AI Speech-to-Text 2025
TL;DR: For 2025, Deepgram wins on speed and real-time use cases, AssemblyAI leads on accuracy and features (speaker diarization, sentiment analysis), and OpenAI Whisper is the best free option for self-hosted transcription. Your best choice depends on whether you prioritize cost, speed, or features. AI speech-to-text has matured rapidly. What once required expensive enterprise contracts…