If you're looking for a voice-to-text service that's got a strong focus on both privacy and accuracy, AssemblyAI is worth a serious look. It's got a variety of AI models for speech-to-text transcription, speaker identification, sentiment analysis and other tasks, all trained on 12.5 million hours of multilingual audio data. AssemblyAI's service is protected by security and privacy measures like GDPR, PCI-DSS and SOC 2 Type 1/Type 2, and its integration tools let you customize how you use it. It's got a free tier for prototyping, too, so it's a good fit for companies building their own AI products that need to handle sensitive voice data.
Another good option is Rev AI, which offers high accuracy but also some flexibility with asynchronous, streaming and human transcription options. It supports multiple languages and has security certifications like SOC II, HIPAA, GDPR and PCI. It's pay-as-you-go pricing means it's good for a variety of tasks, including media and entertainment, education and call centers. Rev AI protects user data and offers detailed documentation and SDKs for developers.
If you're looking for a private transcription service that's easy to use, Speechnotes offers fast and accurate dictation and transcription. It uses AI engines from Google and Microsoft and has a strong privacy focus with encrypted communications, automated deletion of recordings and no humans handling recordings. It's relatively inexpensive and can be used through API and webhooks, so it's good for personal and professional use.
Last, TalkTastic is a voice dictation tool for macOS apps that offers high accuracy and strong privacy controls. It uses on-device AI and multimodal language models, which means you can have fine-grained control over listening and data snapshotting. That means it's a good option for boosting productivity with voice dictation on Mac while keeping your data private.