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PolyAI vs Sierra
PolyAI is positioned as enterprise dialog-agent platform with a builder, developer tooling and system integrations. Sierra is positioned as enterprise customer-service agents spanning voice and other channels, priced around agreed
PolyAI is positioned as enterprise dialog-agent platform with a builder, developer tooling and system integrations. Sierra is positioned as enterprise customer-service agents spanning voice and other channels, priced around agreed outcomes. Start by deciding who owns the missing layers, then inspect the documented differences below.
4 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 | PolyAI | Sierra |
|---|---|---|
| Billing modelDifferent records | per-minute | outcome-based |
| Billing unitDifferent records | Voice agent minute | Contract-defined successful outcome |
| Bring your telephonyDifferent records | Yes | Unknown |
| Bring your modelDifferent records | Yes | Unknown |
| WebhooksDifferent records | YesUnknown | UnknownUnknown |
| Warm transferShared state | Unknown | Unknown |
Your requirements & next steps
Your requirements
Ready-made / AI receptionist · Strict evidence mode
No personal requirements yet. Add criteria in Advanced Filter to prioritize this comparison.
Sales-led per-minute contract rate, not a public numerical rate.
Payment for specifically agreed valuable outcomes, not uniform minutes.
Commercial rate, commitment and workload exceptions require quote; no fabricated all-in ceiling.
No complete public commercial schedule or definition of billable outcome; minutes cannot determine total.
Published unit; precise fee and minimum quote unresolved.
Outcome definition, exceptions and attribution need contract.
Commercial rate, commitment and workload exceptions require quote; no fabricated all-in ceiling.
No complete public commercial schedule or definition of billable outcome; minutes cannot determine total.
No included minute allowance published in reviewed page.
No supporting statement located in the bounded official corpus; confirm scope with vendor. Unknown is not No.
Sales-led per-minute service and build credits are documented; no public complete rate/commitment, recurring free entitlement or provider cost inclusions established.
No supporting statement located in the bounded official corpus; confirm scope with vendor. Unknown is not No.
Sales-led per-minute service and build credits are documented; no public complete rate/commitment, recurring free entitlement or provider cost inclusions established.
No supporting statement located in the bounded official corpus; confirm scope with vendor. Unknown is not No.
Not yet researched against this buyer-critical field standard.
Not yet researched against this buyer-critical field standard.
Commercial rate, commitment and workload exceptions require quote; no fabricated all-in ceiling.
No complete public commercial schedule or definition of billable outcome; minutes cannot determine total.
Commercial rate, commitment and workload exceptions require quote; no fabricated all-in ceiling.
No complete public commercial schedule or definition of billable outcome; minutes cannot determine total.
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.
PolyAI
The public pricing page gives a billing basis, not a numeric quote.
Custom quote / current rate unresolved · V3.3 evidence review · Contract-defined minute billing; no public numeric quote
Excluded / confirm: Complete cost cannot be established from this reference. Commercial rate, commitment and workload exceptions require quote; no fabricated all-in ceiling. · Provider, carrier and custom contract terms require separate verification
Sales-led per-minute contract rate, not a public numerical rate.
Sierra
Agree how an outcome is counted, disputed and audited before comparing costs.
Custom quote / current rate unresolved · V3.3 evidence review · Contract-defined successful outcome; no public numeric quote or uniform per-minute rate
Excluded / confirm: Complete cost cannot be established from this reference. No complete public commercial schedule or definition of billable outcome; minutes cannot determine total. · Provider, carrier and custom contract terms require separate verification
Payment for specifically agreed valuable outcomes, not uniform minutes.
The evidence overlap.
Both records have documented values for Pricing model, MCP tools, 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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