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Deepgram vs Speechmatics
Deepgram is positioned as speech recognition models with separate speech generation and managed voice-agent APIs. Speechmatics is positioned as recognition APIs with cloud and private-deployment choices for transcription-heavy pro
Deepgram is positioned as speech recognition models with separate speech generation and managed voice-agent APIs. Speechmatics is positioned as recognition APIs with cloud and private-deployment choices for transcription-heavy products. Start by deciding who owns the missing layers, then inspect the documented differences below.
10 jointly documented catalog fields. This measures evidence coverage, not equivalent quality or an overall winner.
Test opening hours, booking conflicts and an unanswered transfer.
Start where the records differ.
Values and evidence states are compared together. Shared facts follow the differences; Unknown never means No.
| Decision point | Deepgram | Speechmatics |
|---|---|---|
| Billing unitDifferent records | STT audio minute; TTS thousand characters; agent WebSocket connection minute | Credits (1 credit = $1); product-specific per-hour rates, calculated to the second |
| Bring your telephonyDifferent records | Yes | Unknown |
| Bring your modelDifferent records | Yes | Not applicable |
| Billing modelShared state | component-stack | component-stack |
| Warm transferShared state | Unknown | Unknown |
| HIPAA pathShared state | Yes | Yes |
Your requirements & next steps
Your requirements
Ready-made / AI receptionist · Strict evidence mode
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STT audio minutes, TTS characters and Voice Agent connection minutes are distinct.
Credit billing: one credit equals $1; usage measured by product hours/seconds. This does not mean a character-priced TTS rate or flat agent minute rate.
External provider and telephony bills excluded where applicable. Do not infer a complete monthly ceiling.
Price page exposes a Pro 0.129 figure without a clear unit in captured content; exact model rate and enterprise commitment require confirmation.
Billable open connection time is not just spoken audio.
Billing currency versus usage unit kept distinct.
Growth is annual prepaid commitment, not invented monthly subscription.
No fixed subscription number inferred from credit billing.
No fixed included agent minutes inferred from credit dollars.
Existing pre-August accounts have different transition grant.
Initial credits, Growth commitments and tier rates are documented; no recurring free plan or universal rounding/contract terms inferred.
No forced per-minute bundle conversion.
Agent pricing covers selected tier and components; full workload determines bill.
Buyer-selected component costs sit outside speech API usage.
Not yet researched against this buyer-critical field standard.
Not yet researched against this buyer-critical field standard.
Carrier, hosting, model tier and BYO usage prevent a universal full monthly or per-minute ceiling.
Speech component credits and contract-specific workloads do not determine full voice-agent cost; external LLM/hosting/telephony unknown.
Carrier, hosting, model tier and BYO usage prevent a universal full monthly or per-minute ceiling.
Speech component credits and contract-specific workloads do not determine full voice-agent cost; external LLM/hosting/telephony unknown.
Anyone with this link can view the encoded decision criteria.
Vendor documentation establishes a claim. Public model benchmarks are separate context, not measurements of these platforms.
Open saved comparison ↗What to verify together.
Deepgram
The current Nova-3 streaming rate is promotional.
Voice Agent Standard $0.075/min; BYO TTS $0.065/min; BYO LLM + TTS $0.050/min; Advanced $0.163/min (PAYG) · V3.3 evidence review · Voice Agent Standard PAYG WebSocket connection minutes; other tiers/BYO variants differ
Excluded / confirm: Complete cost cannot be established from this reference. Carrier, hosting, model tier and BYO usage prevent a universal full monthly or per-minute ceiling. · BYO model/TTS charges, carrier and customer transport hosting
STT audio minutes, TTS characters and Voice Agent connection minutes are distinct.
Speechmatics
The lowest advertised batch price is not a real-time price.
Pro self-serve PAYG; Enterprise contract billing · V3.3 evidence review · STT exact-second metering billed in audio hours; no verified current complete rate schedule
Excluded / confirm: Complete cost cannot be established from this reference. Speech component credits and contract-specific workloads do not determine full voice-agent cost; external LLM/hosting/telephony unknown. · External LLM, orchestrator, telephony and application hosting
Credit billing: one credit equals $1; usage measured by product hours/seconds. This does not mean a character-priced TTS rate or flat agent minute rate.
The evidence overlap.
Both records have documented values for Product type, Technical setup, Pricing model, Published numeric pricing, Free trial, Realtime / streaming audio, Transcripts, Published included concurrency at least, Checked within 30 days, Retained price snapshot. Matching availability does not measure behavior under your call conditions.
Run the same booking, tool failure and unsuccessful human-transfer cases. Record both outcomes and billable units before signing a deployment agreement.
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