In 2025, various speech-to-text API alternatives to Deepgram, such as AssemblyAI, Google Cloud Speech-to-Text, AWS Transcribe, OpenAI Whisper, and Speechmatics, are evaluated based on their accuracy, pricing, and features. These alternatives offer different strengths like AssemblyAI's advanced features including sentiment analysis and PII detection, Google Cloud's extensive language support and GCP integration, AWS Transcribe's focus on call center applications and medical transcription, OpenAI Whisper's open-source flexibility, and Speechmatics' deployment options for sensitive data. Deepgram is a versatile API that provides transcription services with features like speaker identification and supports over 30 languages, but users might seek alternatives due to specific requirements in accuracy, pricing structures, feature sets, compliance needs, or integration challenges. Each provider's unique capabilities cater to different use cases, making it essential to consider factors like real-time processing, language support, compliance certifications, and integration ease when choosing the most suitable API.