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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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Cognigy vs Fish Audio

Cognigy is positioned as enterprise agent workflows and Voice Gateway for existing contact-center environments. Fish Audio is positioned as a developer speech API and creative voice workspace; paid TTS usage is metered in UTF-8 by

The decision in context

Cognigy is positioned as enterprise agent workflows and Voice Gateway for existing contact-center environments. Fish Audio is positioned as a developer speech API and creative voice workspace; paid TTS usage is metered in UTF-8 bytes. Start by deciding who owns the missing layers, then inspect the documented differences below.

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

10 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
CognigyFish Audio
Decision signals / differences first

Start where the records differ.

6 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 pointCognigyFish Audio
Billing modelDifferent records
custom-sales-ledVerified Yes · 2026-09-28
component-stackVerified Yes · 2026-09-28
Billing unitDifferent records
UnknownUnknown after research · 2026-09-28
TTS: million UTF-8 bytes; ASR: audio hours; Agents: conversation minutesVerified Yes · 2026-09-28
Bring your telephonyDifferent records
YesConditional · 2026-09-28Voice Gateway
YesVerified Yes · 2026-09-28
Warm transferDifferent records
UnknownUnknown after research · 2026-09-28
YesConditional · 2026-09-28Phone transport and carrier-dependent transfer
HIPAA pathDifferent records
YesVendor claim · 2026-09-28Cognigy.AI supplier statement
UnknownUnknown after research · 2026-09-28
WebhooksDifferent records
YesConditional · 2026-09-28Unknown
YesVerified Yes · 2026-09-28API / webhook
Your requirements & next steps
Carried from your shortlist

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
CognigyEnterprise Platforms
Fish AudioVoice Engines
Pricing model
Cognigy
custom-sales-ledVerified Yes · 2026-09-28

Sales-led enterprise component deployment; no public complete rate table in captured product documentation.

Fish Audio
component-stackVerified Yes · 2026-09-28

TTS uses UTF-8 bytes, ASR audio hours, Agents minutes plus carrier/model/add-ons. Multiple products must not share a fabricated normalized unit.

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

Exact licensed components, speech/model/carrier pass-through and enterprise minimum require a quote.

Fish Audio
TTS $15/M UTF-8 bytes; ASR $0.36/audio hour; Agents $0.06/min + applicable surchargesVerified Yes · 2026-09-28

Free TTS model and Agents promotional basic LLM scope are separate.

Billing unit
Cognigy
UnknownUnknown after research · 2026-09-28

Exact licensed components, speech/model/carrier pass-through and enterprise minimum require a quote.

Fish Audio
TTS: million UTF-8 bytes; ASR: audio hours; Agents: conversation minutesVerified Yes · 2026-09-28

Each product keeps its own billing unit.

Platform fee
Cognigy
UnknownUnknown after research · 2026-09-28

Exact licensed components, speech/model/carrier pass-through and enterprise minimum require a quote.

Fish Audio
No API subscription fees or monthly minimumsVerified Yes · 2026-09-28

API access; managed numbers have separate rental and enterprise agreement may differ.

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

Enterprise product and trial documentation reviewed; no complete current commercial schedule/eligibility or bundled provider costs established. Trial Knowledge AI does not inherit contracted SLA.

Fish Audio
One-time $5 Agents trial balance; preview calls freeVerified Yes · 2026-09-28

Real sessions consume balance including relevant carrier/model charges; no monthly included minutes.

Overage
Cognigy
UnknownUnknown after research · 2026-09-28

Enterprise product and trial documentation reviewed; no complete current commercial schedule/eligibility or bundled provider costs established. Trial Knowledge AI does not inherit contracted SLA.

Fish Audio
Metered charges debit prepaid API credit after trial balanceVerified Yes · 2026-09-28

Destination, transfer and selected model affect cost; no complete ceiling.

Pass-through costs
Cognigy
Carrier and speech-provider subscription costs may applyConditional · 2026-09-28

Barge-in can increase speech subscription costs; contract determines payment route.

Fish Audio
Phone destination surcharge, $1.20/month managed number, cold $0.015/min or warm $0.025/min post-transfer, non-basic LLM tokens; BYO carrier separateVerified Yes · 2026-09-28

Rates have explicit event/destination scope, not a single maximum.

Free offer
Cognigy
UnknownNot researched

Not yet researched against this buyer-critical field standard.

Fish Audio
UnknownNot researched

Not yet researched against this buyer-critical field standard.

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

Exact licensed components, speech/model/carrier pass-through and enterprise minimum require a quote.

Fish Audio
UnknownUnknown after research · 2026-09-28

Call mix, destination, transfer time, selected model/token usage and separate speech products prevent a universal complete monthly/minute ceiling.

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

Exact licensed components, speech/model/carrier pass-through and enterprise minimum require a quote.

Fish Audio
UnknownUnknown after research · 2026-09-28

Call mix, destination, transfer time, selected model/token usage and separate speech products prevent a universal complete monthly/minute ceiling.

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.

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What to verify together.

Cognigy

No public unit price was established; request itemized platform, speech, carrier and support costs.

Custom quote / current rate unresolved · V3.3 evidence review · Enterprise contract; complete public numeric schedule unavailable

Excluded / confirm: Complete cost cannot be established from this reference. Exact licensed components, speech/model/carrier pass-through and enterprise minimum require a quote. · Carrier and speech-provider subscription costs may apply

custom-sales-ledVerified Yes · 2026-09-28

Sales-led enterprise component deployment; no public complete rate table in captured product documentation.

Read the complete profile →

Fish Audio

UTF-8 bytes and characters are not interchangeable for multilingual scripts.

TTS $15/M UTF-8 bytes; ASR $0.36/audio hour; Agents $0.06/min + applicable surcharges · V3.3 evidence review · TTS API reference; Voice Agents beta has separate minute-based billing

Excluded / confirm: Complete cost cannot be established from this reference. Call mix, destination, transfer time, selected model/token usage and separate speech products prevent a universal complete monthly/minute ceiling. · Phone destination surcharge, $1.20/month managed number, cold $0.015/min or warm $0.025/min post-transfer, non-basic LLM tokens; BYO carrier separate

component-stackVerified Yes · 2026-09-28

TTS uses UTF-8 bytes, ASR audio hours, Agents minutes plus carrier/model/add-ons. Multiple products must not share a fabricated normalized unit.

Read the complete profile →

The evidence overlap.

Both records have documented values for Product type, Technical setup, Pricing model, Bring your model, Knowledge base / RAG, Function / tool calling, Interruption controls, Official product documentation, 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.