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Speechmatics vs Deepgram: catalog facts
Speechmatics	Deepgram
Best for: Developers adding speech recognition to voice agents or transcription products	Best for: Developers building transcription features or real-time voice agents
Free + paid options A free start is offered, with paid usage and enterprise plans through sales.	Free + paid options Free sign-up for trying the APIs, with paid usage and enterprise plans.
Web	Web, Self-hosted
Real-time and batch transcription in many languages Speaker diarization and identification All 4 strengths for Speechmatics Real-time and batch transcription in many languages Speaker diarization and identification Cloud, on-premises and on-device deployment options Integrations with LiveKit, Pipecat, Vapi and Zapier	Speech-to-text, text-to-speech and voice agents from one provider Real-time streaming as well as batch transcription All 4 strengths for Deepgram Speech-to-text, text-to-speech and voice agents from one provider Real-time streaming as well as batch transcription Self-hosted deployment option Browser playground for testing models
Built mainly for developers working with an API On-premises and enterprise options require contacting sales	Built for developers integrating an API, not a consumer app Usage beyond the free tier is paid
Hosted service	Self-hosted, Hosted service
Not open source	Not open source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Sources for Speechmatics speechmatics.com Catalog checked October 2, 2026	Official website Full listing and sources Sources for Deepgram deepgram.com Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.