Adept vs Retell AI: 2026 comparison
Browser-driving AI agent — completes multi-step workflows on real web apps the way a human would.
Adept vs Retell AI — specs
| Spec | Adept | Retell AI |
|---|---|---|
| Agent Rank | 67 / 100 (B) | 72 / 100 (A) |
| Autonomy | Autonomous | Autonomous |
| Pricing | Subscription · Free tier | Pay per task · Free tier |
| Open source | No | No |
| Capabilities | Browser, Tool use, Memory, Vision | Voice, Tool use, Memory |
| Integrations | 3 apps | 3 apps |
| Verified | — | Verified |
| Released | Apr 2025 | Mar 2025 |
Agent Rank breakdown
- Autonomy fit
- 9
- Capabilities
- 8
- Integrations
- 4
- Pricing value
- 9
- Polish & maturity
- 4
- Verifiability
- 6
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
- 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?
Pros & cons
- +Pioneering work on UI-driven browser agents — strong research lineage
- +Best for fully-autonomous, multi-step workflows that cross web apps
- +Foundation models tuned specifically for browser action prediction
- −Not generally available — enterprise pilots only as of mid-2026
- −Pricing not public
- −Reliability on long-tail UIs still a work in progress
- +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
Pricing
- +Browser-driving agent
- +Custom workflow training
- +Dedicated research-eng support
- +~$0.07/min
- +Production-ready API
- +Volume discounts
- +Dedicated infrastructure
- +Custom models
Which one should you pick?
Pick Retell AI if you want a vendor we've verified for accessibility and pricing accuracy.
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Frequently asked
Should I pick Adept or Retell AI in 2026?+
Pick Adept if its specific capabilities (Browser, Tool use) match what you need. Pick Retell AI if you want a vendor we've verified for accessibility and pricing accuracy. Most working teams running both can use Adept for primary work and Retell AI for the workflows where its specific strengths matter.
What's the price difference between Adept and Retell AI?+
Both Adept and Retell AI start in the same pricing range (Subscription · Free tier vs Pay per task · Free tier). Total cost of ownership depends on your team size and volume — see the TCO calculator for your specific math.
Which is more autonomous, Adept or Retell AI?+
Both Adept and Retell AI are Autonomous agents — neither has a meaningful autonomy advantage over the other. The decision should hinge on capabilities and pricing instead.