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Comparison LabCompare 27 voice AI platforms and components across seven buying contexts, with sourced capabilities, current price captures and visible unknowns.Voice AI Price Index: prices, evidence and historyUnderstand the complete voice-agent cost stack: models, voice, transcription, telephony, subscriptions, capacity and add-ons.Know the cost before the first callEstimate monthly voice-agent costs, AI minutes, setup expenses and volume scenarios using your own transparent assumptions.AI voice agents for dentalAppointments, rescheduling and after-hours calls—with a person ready for clinical questions. Explore call flows, safe automation, integrations, tests and cost considerations.

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Speechify vs Speechmatics

Speechify is positioned as a developer TTS API under SpeechifyAI, distinct from the consumer reading subscription. Speechmatics is positioned as recognition APIs with cloud and private-deployment choices for transcription-heavy pr

The decision in context

Speechify is positioned as a developer TTS API under SpeechifyAI, distinct from the consumer reading subscription. 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.

Voice Engines and STT are different product categories. An underlying engine or framework is not a complete substitute for a deployed agent workflow.

8 jointly documented catalog fields. This measures evidence coverage, not equivalent quality or an overall winner.

Compare for the job

Test opening hours, booking conflicts and an unanswered transfer.

2 of 4 slots
SpeechifySpeechmatics
Decision signals / differences first

Start where the records differ.

5 of 8 priority fields differ

Values and evidence states are compared together. Shared facts follow the differences; Unknown never means No.

Selected platforms: buyer-critical differences before detailed dimensions
Decision pointSpeechifySpeechmatics
Billing modelDifferent records
character-creditVerified Yes · 2026-09-28
component-stackVerified Yes · 2026-09-28
Billing unitDifferent records
Monthly plan + character-based synthesis debited from USD usage balanceVerified Yes · 2026-09-28
Credits (1 credit = $1); product-specific per-hour rates, calculated to the secondVerified Yes · 2026-09-28
Bring your modelDifferent records
UnknownUnknown after research · 2026-09-28Current captured product corpus; not a universal unsupported claim
Not applicableNot applicable · 2026-09-28
Warm transferDifferent records
Not applicableNot applicable · 2026-09-28
UnknownUnknown after research · 2026-09-28Current captured product corpus; not a universal unsupported claim
HIPAA pathDifferent records
UnknownUnknown after research · 2026-09-28
YesVendor claim · 2026-09-28Speechmatics vendor statement; service/contract scope needs review
Bring your telephonyShared state
UnknownUnknown after research · 2026-09-28Current captured product corpus; not a universal unsupported claim
UnknownUnknown after research · 2026-09-28Current captured product corpus; not a universal unsupported claim
Your requirements & next steps
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Your requirements

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Ready-made / AI receptionist · Strict evidence mode

No personal requirements yet. Add criteria in Advanced Filter to prioritize this comparison.

Unknown ≠ No
Evidence, side by sideNo benchmark scores
SpeechifyVoice Engines
Pricing model
Speechify
character-creditVerified Yes · 2026-09-28

Paid monthly subscription includes USD usage balance consumed by character-priced synthesis. Agent quote separate.

Speechmatics
component-stackVerified Yes · 2026-09-28

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.

Headline / base price
Speechify
UnknownUnknown after research · 2026-09-28

Captured pricing summary does not provide complete per-character rate/balance table; full pricing evidence requested. Do not use consumer reader plans.

Speechmatics
UnknownUnknown after research · 2026-09-28

Price page exposes a Pro 0.129 figure without a clear unit in captured content; exact model rate and enterprise commitment require confirmation.

Billing unit
Speechify
Monthly plan + character-based synthesis debited from USD usage balanceVerified Yes · 2026-09-28

Enterprise agent pricing excluded from this ladder.

Speechmatics
Credits (1 credit = $1); product-specific per-hour rates, calculated to the secondVerified Yes · 2026-09-28

Billing currency versus usage unit kept distinct.

Platform fee
Speechify
Free $0; Starter $10; Pro $99; Scale $499 per monthVerified Yes · 2026-09-28

Included USD usage balance and per-character usage, not all-in agent minutes.

Speechmatics
Pro self-serve PAYG; Enterprise contract billingVerified Yes · 2026-09-28

No fixed subscription number inferred from credit billing.

Included usage
Speechify
UnknownUnknown after research · 2026-09-28

Captured pricing summary does not provide complete per-character rate/balance table; full pricing evidence requested. Do not use consumer reader plans.

Speechmatics
$100 initial credits; not a recurring monthly speech allowanceVerified Yes · 2026-09-28

Existing pre-August accounts have different transition grant.

Overage
Speechify
Requests can be refused after spend limits; enforcement trails billed usageVerified Yes · 2026-09-28

In-flight requests continue and small overshoot is possible; not a guaranteed complete monthly ceiling.

Speechmatics
PAYG usage after grants billed monthly in arrearsVerified Yes · 2026-09-28

No forced per-minute bundle conversion.

Pass-through costs
Speechify
External STT, LLM, orchestrator, carrier and hostingVerified Yes · 2026-09-28

Separate provider credentials and buyer deployment.

Speechmatics
External LLM, orchestrator, telephony and application hostingVerified Yes · 2026-09-28

Buyer-selected component costs sit outside speech API usage.

Free offer
Speechify
UnknownNot researched

Not yet researched against this buyer-critical field standard.

Speechmatics
UnknownNot researched

Not yet researched against this buyer-critical field standard.

Complete cost ceiling
Speechify
UnknownUnknown after research · 2026-09-28

Self-serve TTS balance does not determine telephony, recognition, LLM and hosting spend; enterprise agent quote unknown.

Speechmatics
UnknownUnknown after research · 2026-09-28

Speech component credits and contract-specific workloads do not determine full voice-agent cost; external LLM/hosting/telephony unknown.

What remains unresolved
Speechify
UnknownUnknown after research · 2026-09-28

Self-serve TTS balance does not determine telephony, recognition, LLM and hosting spend; enterprise agent quote unknown.

Speechmatics
UnknownUnknown after research · 2026-09-28

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.

Speechify

Consumer and API plans are different products.

Free $0; Starter $10; Pro $99; Scale $499 per month · V3.3 evidence review · Starter TTS API plan; credit/character schedule unresolved; Enterprise Agents separate quote

Excluded / confirm: Complete cost cannot be established from this reference. Self-serve TTS balance does not determine telephony, recognition, LLM and hosting spend; enterprise agent quote unknown. · External STT, LLM, orchestrator, carrier and hosting

character-creditVerified Yes · 2026-09-28

Paid monthly subscription includes USD usage balance consumed by character-priced synthesis. Agent quote separate.

Read the complete profile →

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

component-stackVerified Yes · 2026-09-28

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.

Read the complete profile →

The evidence overlap.

Both records have documented values for Product type, Technical setup, Pricing model, Published numeric pricing, Realtime / streaming audio, 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.

Build a buyer-operated pilot →

Editorial index gate: noindex-cross-category. Different product layers. This pair is useful for architecture inspection, not a like-for-like purchase ranking.