Deepgram
Low-latency streaming transcription and voice agent infrastructure.
Full Deepgram record →Head to head
Deepgram vs AssemblyAI
Deepgram (Deepgram) and AssemblyAI (AssemblyAI) both sit in Audio. AssemblyAI is the cheaper entry point at Free tier of $50 in credits; pay-as-you-go pre-recorded starting at $0.15/hr (Universal-2) or $0.21/hr (Universal-3.5 Pro). Deepgram shipped more tracked changes in the last 30 days (6 vs 3). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Deepgram Deepgram | AssemblyAI AssemblyAI |
|---|---|---|
| Segment | Audio | Audio |
| Version | Nova-3 | Universal-3.5 Pro |
| Entry cost | Free tier · from $4,000/unit | Free tier of $50 in credits; pay-as-you-go pre-recorded starting at $0.15/hr (Universal-2) or $0.21/hr (Universal-3.5 Pro) |
| Pricing tiers | Free free · Growth $4000 | Free Tier free |
| Model stack | Aura-1 · Aura-2 · Flux · Flux English · Flux Multilingual · Flux TTS · Nova-3 · Nova-3 Monolingual · Nova-3 Multilingual · Whisper · Whisper Cloud · Whisper Large | Claude · Claude 4.6 Sonnet · Claude 4.8 Opus · Gemini 2.5 Pro · Gemini 3.5 Flash · GPT-5.5 · Qwen3 Next 80B A3B · u3-rt-pro · Universal-2 · universal-3-pro · Universal-3.5 Pro · Universal-3.5 Pro Realtime · Universal-Streaming English · Universal-Streaming Multilingual |
| Context window | n/a | n/a |
| Public API | ||
| Routes models | ||
| Changes / 30d | 6 | 3 |
| Origin | Global | Global |
| Capabilities | Real-time streaming, Keyterm prompting, Multilingual, Voice agent API, Text to speech, Speech-to-Text, Text-to-Speech, Voice Agent API | Speaker diarization, Summarisation, Topic detection, PII redaction, LeMUR framework, Pre-recorded STT, Real-time STT, Voice Agent API |
AssemblyAI
Transcription plus summarisation, topic detection and speaker labels for developers.
Full AssemblyAI record →