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Relay Agents vs Sintra AIwhich AI ops agent should you pick in 2026?
Human-in-the-loop workflow agents that connect 100+ apps with approvals.
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Relay Agents vs Sintra AI — specs
| Spec | Relay Agents | Sintra AI |
|---|---|---|
| Agent Rank | 73 / 100 (A) | 75 / 100 (A) |
| Autonomy | Semi-autonomous | Semi-autonomous |
| Pricing | Freemium · from $18 | Subscription · from $16 |
| Open source | No | No |
| Capabilities | Tool use, Memory | Tool use, Memory, Multi-agent |
| Integrations | 4 apps | 5 apps |
| Verified | Verified | Verified |
| Released | Mar 2025 | Mar 2026 |
Agent Rank breakdown
Relay Agents
Agent Rank
73/ 100
- Autonomy
- 8
- Capabilities
- 4
- Integrations
- 8
- Pricing
- 8
- Polish
- 6
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Sintra AI
Agent Rank
75/ 100
- Autonomy
- 8
- Capabilities
- 6
- Integrations
- 10
- Pricing
- 8
- Polish
- 6
- Verifiability
- 7
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Pros & cons
Relay Agents
Pros
- +Strongest human-in-the-loop pattern of any no-code agent
- +Connects 100+ apps with conditional logic and approval gates
- +Free tier is real — not a trial in disguise
Cons
- −AI features are lighter than purpose-built agent platforms
- −Per-seat pricing scales fast for larger teams
- −No native phone / voice support
Sintra AI
Pricing
Relay Agents
Free
Free
Personal use
- +200 runs/mo
- +All app integrations
Recommended
Pro
$18/mo
Solo professionals
- +2,000 runs/mo
- +Multi-step approvals
- +Conditional branching
Team
$38/seat/mo
Small teams
- +Shared workflows
- +Audit log
- +Role-based access
Sintra AI
Which one should you pick?
Relay Agents
Pick Relay Agents if its specific capabilities (Tool use, Memory) match what you need.
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Frequently asked
Should I pick Relay Agents or Sintra AI in 2026?+
Pick Relay Agents if its specific capabilities (Tool use, Memory) match what you need. Pick Sintra AI if cost is the main constraint. Most working teams running both can use Relay Agents for primary work and Sintra AI for the workflows where its specific strengths matter.
What's the price difference between Relay Agents and Sintra AI?+
Relay Agents starts at Freemium · from $18; Sintra AI starts at Subscription · from $16. Sintra 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, Relay Agents or Sintra AI?+
Both Relay Agents and Sintra AI are Semi-autonomous agents — neither has a meaningful autonomy advantage over the other. The decision should hinge on capabilities and pricing instead.
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7,000+ app integrations plus an AI agent layer — your existing automation stack, now with planning.
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See more alternatives: alternatives to Relay Agents · alternatives to Sintra AI
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