Retell AI vs Windsurf: 2026 comparison
Production voice agent platform — LLM-native phone agents with low-latency streaming and per-minute pricing.
Retell AI vs Windsurf — specs
| Spec | Retell AI | Windsurf |
|---|---|---|
| Agent Rank | 72 / 100 (A) | 78 / 100 (A) |
| Autonomy | Autonomous | Semi-autonomous |
| Pricing | Pay per task · Free tier | Freemium · from $15 |
| Open source | No | No |
| Capabilities | Voice, Tool use, Memory | Code, Tool use, Memory, Browser |
| Integrations | 3 apps | 2 apps |
| Verified | Verified | Verified |
| Released | Mar 2025 | Apr 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
- 8
- Capabilities
- 8
- Integrations
- 4
- Pricing value
- 8
- Polish & maturity
- 9
- Verifiability
- 10
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
- +Cascade agent flows are the strongest "watch it work" UI in any IDE-native agent
- +Cheapest Pro tier in the category at $15/month
- +Codeium has a deep model team — completion quality consistently leads
- −Smaller ecosystem of extensions than Cursor
- −Pro Ultimate ($60) is opaque on which models are actually premium
- −Memory feature less mature than Cursor + Claude Code memories
Pricing
- +~$0.07/min
- +Production-ready API
- +Volume discounts
- +Dedicated infrastructure
- +Custom models
- +Limited Cascade flow runs
- +Standard models
- +Editor + chat
- +Unlimited Cascade flows
- +All Pro models
- +Background agents
- +Memories
- +Highest model priority
- +Premium models included
- +Higher concurrency
- +SSO + admin
- +Usage analytics
- +Shared memories
Which one should you pick?
Pick Retell AI if cost is the main constraint or if you want the highest autonomy and the verification loop is in place.
Try Retell AI →Pick Windsurf if its specific capabilities (Code, Tool use) match what you need.
Try Windsurf →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick Retell AI or Windsurf in 2026?+
Pick Retell AI if cost is the main constraint or if you want the highest autonomy and the verification loop is in place. Pick Windsurf if its specific capabilities (Code, Tool use) match what you need. Most working teams running both can use Retell AI for primary work and Windsurf for the workflows where its specific strengths matter.
What's the price difference between Retell AI and Windsurf?+
Retell AI starts at Pay per task · Free tier; Windsurf starts at Freemium · from $15. 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 Windsurf?+
Retell AI is the more autonomous of the two (Autonomous vs Semi-autonomous). Higher autonomy ships throughput faster but requires verification loops in place — see our autonomous-vs-copilot framing for when each tier wins.