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LiveKit vs Speechmatics
LiveKit is positioned as realtime agent infrastructure for teams that own the application and model stack. Speechmatics is positioned as recognition APIs with cloud and private-deployment choices for transcription-heavy products.
LiveKit is positioned as realtime agent infrastructure for teams that own the application and model stack. 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.
Developer Frameworks and STT are different product categories. An underlying engine or framework is not a complete substitute for a deployed agent workflow.
9 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 | LiveKit | Speechmatics |
|---|---|---|
| Billing unitDifferent records | Plan/month + agent minutes + telephony minutes + inference tokens/characters/audio + observability entries | 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 |
| Warm transferDifferent records | Yes | Unknown |
| HIPAA pathDifferent records | Yes | Yes |
| Billing modelShared state | component-stack | component-stack |
Your requirements & next steps
Your requirements
Ready-made / AI receptionist · Strict evidence mode
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Plan plus session, telephony, inference, observability and other usage; example calculator minute total is not fixed price.
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.
Agent session component only; not complete call cost.
Price page exposes a Pro 0.129 figure without a clear unit in captured content; exact model rate and enterprise commitment require confirmation.
No universal conversion of model inference to minute rate.
Billing currency versus usage unit kept distinct.
Usage overages and model inference additional.
No fixed subscription number inferred from credit billing.
Separate allowance buckets; no implied complete free call quantity.
Existing pre-August accounts have different transition grant.
Build allowances are hard caps; paid usage beyond allowances is incremental, not a complete price/minute.
No forced per-minute bundle conversion.
Usage mix and selected providers required.
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.
The calculator example $0.0479/min is assumption-specific; no maximum complete bill from minutes alone.
Speech component credits and contract-specific workloads do not determine full voice-agent cost; external LLM/hosting/telephony unknown.
The calculator example $0.0479/min is assumption-specific; no maximum complete bill from minutes alone.
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.
LiveKit
Agent-session pricing excludes a complete inference and telephony stack.
Paid Cloud agent sessions $0.01/min beyond allowance · V3.3 evidence review · Cloud Ship starting subscription; session overage, inference, transport and artifacts extra
Excluded / confirm: Complete cost cannot be established from this reference. The calculator example $0.0479/min is assumption-specific; no maximum complete bill from minutes alone. · Inference, phone number/transport, recording and observability, outbound carrier, bandwidth and optional private links
Plan plus session, telephony, inference, observability and other usage; example calculator minute total is not fixed price.
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, 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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