Is Sierra still around? (2026)
Yes. Sierra is live and reachable, price-verified as of Sep 8, 2026.
Held steady at $0/mo the whole tracked window (51 days).
Reachable 100% of 51 tracked days.
First-party daily snapshots. One reading per day, grows over time.
What Sierra is
What sets it apart Outcome-based pricing: customers are charged when an agent achieves a defined result (a resolved conversation, a saved cancellation), and unresolved conversations usually carry no charge, in contrast to seat- or conversation-based licensing
Best for Large enterprises in sectors like financial services, telecom, healthcare, travel, and retail that want AI customer-service agents to complete transactions end-to-end and prefer paying per resolved outcome over per seat · Pricing model No published pricing; enterprise sales only. Core model is outcome-based, billing on completed outcomes such as resolved conversations, saved cancellations, and upsells, with unresolved conversations typically not charged; some interaction types (e.g., routing or greeting) can use per-interaction consumption pricing. Deployments generally involve separate setup and integration fees. The DB "starting_price=$0/mo" and "free_tier=false" are consistent with there being no self-serve list price rather than a genuine free entry point.
Founded in 2023 by Bret Taylor and Clay Bavor, Sierra builds AI agents that enterprises deploy for customer service across voice, chat, email, and WhatsApp; the agents connect to backend systems such as CRM and order management so they can complete a task like processing a return or filing an insurance claim rather than only answering questions. Its distinguishing choice is pricing: customers are billed on outcomes, paying when an agent resolves a conversation or saves a cancellation, and in most cases owing nothing when a conversation goes unresolved. Sierra does not publish rates and sells through enterprise contracts that generally include setup and integration work, so it fits large organizations with the backend complexity and budget to justify a custom deployment.
Sources Sierra - Product overview (vendor) · Sierra - Outcome-based pricing for AI Agents (vendor blog) · TechCrunch - Bret Taylor's Sierra raises $350M at a $10B valuation · Featurebase - Sierra AI Pricing 2026
Use it, or see the field
Sierra is live and price-verified as of Sep 8, 2026. If it fits, go straight to it. If you are comparing, see the full ranked field in AI Customer Support - only tools our health checks report as alive.
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