Sierra
sierra.ai
AI customer experience platform (from Bret Taylor) for building branded conversational agents.
Quick Information
- Category:
- Business
- Pricing:
- Enterprise
- Platforms:
- Web, Voice, Email, SMS, WhatsApp
- Free Plan:
- No
- API Available:
- Yes
- Last Verified:
- September 2026
What Is Sierra?
Sierra is an AI customer experience platform from Bret Taylor (former Salesforce co-CEO) and Clay Bavor, building autonomous, action-taking AI agents for enterprise customer experience across chat, voice, email, SMS, and WhatsApp. Founded in 2023, Sierra has grown to $150 million ARR by early 2026, raised $950 million in its Series C at a $15.8 billion valuation, and now serves over 40% of the Fortune 50, with branded AI agents deployed for enterprises like WeightWatchers, Sonos, ADT, SiriusXM, and Casper.
Sierra publishes no pricing at all — no tiers, no self-serve plans, no published per-resolution rates — instead using a genuinely distinctive outcome-based model where enterprises pay only when an agent achieves a defined result (a resolution, a saved cancellation, an upsell), with no charge in most cases when a conversation goes unresolved. This outcome-based pricing philosophy is a real alignment of incentives between Sierra and its enterprise customers, distinct from typical per-seat or per-conversation billing that charges regardless of actual value delivered.
It's aimed at large enterprises wanting autonomous, branded AI customer experience agents with genuinely outcome-aligned pricing, with Sierra's massive recent growth ($150M ARR, $15.8B valuation, 40%+ of Fortune 50 as customers) reflecting real, substantial enterprise trust — the complete absence of published pricing means every engagement requires a custom sales conversation tailored to deployment complexity, volume, and integration scope. See our Business & Productivity tools directory for related tools like Salesforce Agentforce and Intercom Fin.
What Can You Use Sierra For?
Autonomous customer service agents
Deploys branded, autonomous AI agents for customer-facing roles across chat, voice, email, SMS, and WhatsApp.
Outcome-based support automation
Automates customer support with payment tied to defined outcomes rather than volume.
Enterprise CX transformation
Transforms customer experience operations for large enterprises like WeightWatchers, Sonos, and Casper.
Sierra Features
- Multi-channel autonomous agents — Deploys branded AI agents across chat, voice, email, SMS, and WhatsApp.
- Outcome-based pricing — Charges only when agents achieve a defined result, not for unresolved conversations.
- Enterprise-scale deployment — Powers billions of customer interactions for major enterprise brands.
Who Is Sierra For?
- Large enterprises — Uses autonomous, branded AI agents for customer experience at Fortune 50 scale.
- Organizations wanting outcome-aligned pricing — Uses Sierra’s pay-per-outcome model rather than per-seat or per-conversation billing.
Sierra Pros & Limitations
What We Like
- Genuinely outcome-aligned pricing model charges only for actual results, not unresolved conversations
- Massive real enterprise trust and growth — $150M ARR, $15.8B valuation, 40%+ of Fortune 50 as customers
- True multi-channel deployment (chat, voice, email, SMS, WhatsApp) under one platform
Limitations
- Zero published pricing — every engagement requires a custom sales conversation
- Positioned exclusively for large enterprise deployments, not accessible for smaller businesses
- Outcome-based billing requires careful contractual definition of what counts as a "resolution" or "outcome"
Sierra Pricing
| Plan | Price | Main Features |
|---|---|---|
| Outcome-based (custom) | Pay per achieved outcome | Autonomous multi-channel AI agents, no charge for unresolved conversations |
Pricing was last verified September 2026. Check the official website for the latest pricing.
AI Listing Jungle Ranking
- Global Rank:
- #343
- Overall Score:
- 58.5/100
- Monthly Users:
- –
- Rank Change:
- ▲ 23
This ranking reflects AI Listing Jungle's own independent scoring methodology and is not an endorsement by Sierra or its company. How Our Rankings Work
Frequently Asked Questions
How much does Sierra cost?
No published pricing — it uses an outcome-based model, paying only when agents achieve defined results.
Who founded Sierra?
Bret Taylor (former Salesforce co-CEO) and Clay Bavor, in 2023.
How large is Sierra?
$150M ARR by early 2026, a $15.8B valuation, and over 40% of the Fortune 50 as customers.
What channels does Sierra support?
Chat, voice, email, SMS, and WhatsApp.
Our Take
Sierra's outcome-based pricing model — charging only for achieved results rather than volume or seats — represents a genuinely well-aligned incentive structure between the company and its enterprise customers.
Its massive recent growth (a $15.8B valuation and 40%+ of the Fortune 50 as customers) reflects real, substantial enterprise trust rather than early-stage hype.
Sierra Alternatives
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