Retell AI vs Sweep: 2026 comparison
Production voice agent platform — LLM-native phone agents with low-latency streaming and per-minute pricing.
Retell AI vs Sweep — specs
| Spec | Retell AI | Sweep |
|---|---|---|
| Agent Rank | 72 / 100 (A) | 58 / 100 (B) |
| Autonomy | Autonomous | Autonomous |
| Pricing | Pay per task · Free tier | Freemium · from $30 |
| Open source | No | Yes |
| Capabilities | Voice, Tool use, Memory | Code, Tool use, Memory |
| Integrations | 3 apps | 1 apps |
| Verified | Verified | — |
| Released | Mar 2025 | Mar 2025 |
Agent Rank breakdown
- Autonomy fit
- 9
- Capabilities
- 6
- Integrations
- 4
- 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
- +Lowest per-minute pricing among production voice agent platforms
- +Strong streaming latency (~300ms) competitive with ElevenLabs
- +Per-minute pricing easier to forecast than per-seat
- −Less polished out-of-the-box than Synthflow for non-technical buyers
- −Documentation and tooling still maturing vs ElevenLabs
- −Voice quality varies by model selection
- +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
- +~$0.07/min
- +Production-ready API
- +Volume discounts
- +Dedicated infrastructure
- +Custom models
- +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 Retell AI if cost is the main constraint or if you want a vendor we've verified for accessibility and pricing accuracy.
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Frequently asked
Should I pick Retell AI or Sweep in 2026?+
Pick Retell AI 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 Retell AI for primary work and Sweep for the workflows where its specific strengths matter.
What's the price difference between Retell AI and Sweep?+
Retell AI starts at Pay per task · Free tier; Sweep starts at Freemium · from $30. Retell AI 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, Retell AI or Sweep?+
Both Retell AI and Sweep are Autonomous agents — neither has a meaningful autonomy advantage over the other. The decision should hinge on capabilities and pricing instead.