Sierra vs Sweep: 2026 comparison
Branded customer-facing agents from the founders of Salesforce + Google.
Sierra vs Sweep — specs
| Spec | Sierra | Sweep |
|---|---|---|
| Agent Rank | 78 / 100 (A) | 58 / 100 (B) |
| Autonomy | Autonomous | Autonomous |
| Pricing | Subscription · Free tier | Freemium · from $30 |
| Open source | No | Yes |
| Capabilities | Voice, Tool use, Memory, RAG | Code, Tool use, Memory |
| Integrations | 3 apps | 1 apps |
| Verified | Verified | — |
| Released | Feb 2025 | Mar 2025 |
Agent Rank breakdown
- Autonomy fit
- 9
- Capabilities
- 8
- Integrations
- 6
- Pricing value
- 9
- Polish & maturity
- 5
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
- Autonomy fit
- 9
- Capabilities
- 6
- Integrations
- 2
- Pricing value
- 7
- Polish & maturity
- 5
- Verifiability
- 6
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Pros & cons
- +Best-in-class for branded customer-facing agents (voice + chat parity)
- +Concierge onboarding from one of the strongest teams in AI
- +Indistinguishable-from-human quality in tier-1 deployments
- −Enterprise-only pricing — typical contracts $150–500k/year
- −Deployment is white-glove, not SaaS — multi-week setup
- −Overkill for SMB or mid-market support volumes
- +Issue-to-PR turnaround in minutes for well-described bugs
- +GitHub-native — authenticates as a GitHub App, no extension needed
- +Great on TypeScript / Python / Go codebases with reasonable test coverage
- −Struggles when issues are vague or codebase is messy
- −No interactive mode — you describe, it ships
- −Less effective on closed languages or proprietary frameworks
Pricing
- +Voice + chat
- +Custom persona
- +White-glove implementation
- +SOC 2 II + HIPAA option
- +Up to 5 issue-to-PR runs/month
- +Public repos only
- +Unlimited runs
- +Private repos
- +Configurable rules
- +Self-hosted option
- +SAML SSO
- +Dedicated support
Which one should you pick?
Pick Sierra if cost is the main constraint or if you want a vendor we've verified for accessibility and pricing accuracy.
Try Sierra →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick Sierra or Sweep in 2026?+
Pick Sierra if cost is the main constraint or if you want a vendor we've verified for accessibility and pricing accuracy. Pick Sweep if auditability or self-hosting matters. Most working teams running both can use Sierra for primary work and Sweep for the workflows where its specific strengths matter.
What's the price difference between Sierra and Sweep?+
Sierra starts at Subscription · Free tier; Sweep starts at Freemium · from $30. Sierra is the cheaper entry option. For team deployments the TCO can differ — use the AI Agent Rank TCO calculator for your specific volume.
Which is more autonomous, Sierra or Sweep?+
Both Sierra and Sweep are Autonomous agents — neither has a meaningful autonomy advantage over the other. The decision should hinge on capabilities and pricing instead.