# Sistava vs Sierra

*AI Customer Support*

Sistava vs Sierra

Sierra builds enterprise-grade AI customer service agents using a multi-model "constellation" architecture for companies like SiriusXM, WeightWatchers, and Sonos. Unlike Sierra with 3-6 month implementations and $150K+ annual contracts, Sistava offers pre-built AI employees from a marketplace that handle support plus sales, marketing, and ops, with transparent pricing starting free.

> **Bottom line:** Sistava hires pre-built AI teams in minutes from a marketplace. Sierra runs reported 3-6 month custom implementations.

## Profile

- **Pricing:** Enterprise only. Outcome-based. Reported six-figure setup fees and annual contracts (per public reports).
- **Founded:** 2023, San Francisco (co-founded by ex-Salesforce CEO Bret Taylor)
- **Funding:** Reportedly $635M raised at a $10B valuation (Sep 2025, per public reports).
- **Focus:** Enterprise AI agents for customer service that take real actions

## Why Sistava

- Sistava hires pre-built AI teams in minutes from a marketplace. Sierra runs reported 3-6 month custom implementations.
- Sistava covers support, sales, marketing, and ops. Sierra is customer support only.
- Sistava has transparent pricing from Free to $399/mo. Sierra has opaque enterprise contracts (reportedly six figures per year).
- Sistava connects to thousands of apps plus custom MCP servers. Sierra has limited CRM and order management integrations.
- Sistava retains memory across conversations and channels (graph + episodic). Sierra relies on per-conversation context.

## Feature Comparison

| Feature | Sierra | Sistava |
|---|---|---|
|  | Reportedly 3-6 months | Minutes |
|  | Reportedly six figures per year | Free ($0/mo) |
|  | Customer support only | Support, sales, marketing, ops |
|  | ✗ | ✓ |
|  | Per-conversation context | Graph + episodic, persistent |
|  | CRM + order APIs | Thousands of native + MCP |
|  | ✗ | ✓ |
|  | ✗ | ✓ |
|  | Proprietary | ✓ |
|  | Brand safety monitoring | PII detection, approval gates |
|  | Omnichannel voice | ✓ |
|  | ✗ | ✓ |
|  | ✓ | ✗ |
|  | Multi-model constellation | OpenAI, Anthropic, Google, open-source |