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Hume AI vs Rime
Hume AI is positioned as hume TTS and EVI API sunset: announced access end November 13, 2026 at 05:01 UTC. Retained for historical comparison and migration research. Rime is positioned as conversational TTS with separate models an
Hume AI is positioned as hume TTS and EVI API sunset: announced access end November 13, 2026 at 05:01 UTC. Retained for historical comparison and migration research. Rime is positioned as conversational TTS with separate models and enterprise deployment options. Start by deciding who owns the missing layers, then inspect the documented differences below.
7 jointly documented catalog fields. This measures evidence coverage, not equivalent quality or an overall winner.
TTS + EVI API sunset · Announced end: 13 Nov 2026, 05:01 UTC. Read notice & sources →
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 | Hume AI | Rime |
|---|---|---|
| Billing modelDifferent records | monthly-bundle | character-credit |
| Billing unitDifferent records | Monthly subscription + EVI minutes / TTS characters / supplemental LLM usage | 1,000 characters |
| Bring your telephonyDifferent records | Yes | Not applicable |
| Bring your modelDifferent records | Yes | Not applicable |
| Warm transferDifferent records | Unknown | Not applicable |
| WebhooksDifferent records | YesAPI / webhook | UnknownUnknown |
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.
Subscription includes TTS/EVI/Voice allowances; overage and managed external LLM usage add cost.
Mist and Coda are billed per characters. Approximate minutes are supplier illustrations, not normalized all-in phone rates.
Free plan exists; paid entry is not a complete phone-call bill.
API synthesis rates; Enterprise separately quoted.
Incompatible product allowances are not collapsed into one all-in minute price.
Do not convert by assumed speaking rate.
First-month Creator promotion is separate from regular price; Enterprise custom.
Reviewed field-specific candidate passages and product, API, pricing, privacy, deployment, metrics and integration documentation. Matched vocabulary examples are not company/commercial facts; HTTP routing is not call routing; Slack support is not a Slack product integration; OTel metrics do not establish distributed traces. Public sources do not resolve this exact commercial/control detail.
Plan-scoped EVI allowance; does not include every third-party carrier/model charge.
Reviewed field-specific candidate passages and product, API, pricing, privacy, deployment, metrics and integration documentation. Matched vocabulary examples are not company/commercial facts; HTTP routing is not call routing; Slack support is not a Slack product integration; OTel metrics do not establish distributed traces. Public sources do not resolve this exact commercial/control detail.
TTS characters, EVI minutes and supplemental model usage remain separate.
Reviewed field-specific candidate passages and product, API, pricing, privacy, deployment, metrics and integration documentation. Matched vocabulary examples are not company/commercial facts; HTTP routing is not call routing; Slack support is not a Slack product integration; OTel metrics do not establish distributed traces. Public sources do not resolve this exact commercial/control detail.
These are buyer stack costs, not verified pass-through charges invoiced by Rime.
Not yet researched against this buyer-critical field standard.
Not yet researched against this buyer-critical field standard.
TTS characters do not establish complete agent monthly cost or minute cost. Recognition, reasoning, hosting and telephony are separate.
TTS characters do not establish complete agent monthly cost or minute cost. Recognition, reasoning, hosting and telephony are separate.
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.
Hume AI
VoiceAgent.best recommends evaluating migration options rather than starting a new long-term TTS or EVI API deployment. This is our editorial judgment; replacement compatibility has not been established.
$3/month Starter; included EVI minutes and overage depend on plan · V3.3 evidence review · Starter subscription reference; EVI 40 minutes; external LLM/telephony extra
Excluded / confirm: Complete cost cannot be established from this reference. Selected external LLM, carrier, token/character consumption and overages prevent a complete cost ceiling from monthly minutes alone. · Hume-managed external LLM usage extra; BYO key/custom model paid outside Hume; Twilio separate
Subscription includes TTS/EVI/Voice allowances; overage and managed external LLM usage add cost.
Rime
The free allowance and catalog counts conflict on official pages.
Mist $0.03 / 1,000 characters; Coda $0.05 / 1,000 characters · V3.3 evidence review · Mist TTS; Coda separately priced; catalog and free-credit conflicts remain
Excluded / confirm: Complete cost cannot be established from this reference. TTS characters do not establish complete agent monthly cost or minute cost. Recognition, reasoning, hosting and telephony are separate. · Separate STT, LLM, application hosting and carrier/transport bills
Mist and Coda are billed per characters. Approximate minutes are supplier illustrations, not normalized all-in phone rates.
The evidence overlap.
Both records have documented values for Product type, Technical setup, Pricing model, Published numeric pricing, 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.
Review Hume API sunset & migration guidance →