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Relay Agents vs Sardinewhich 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 Sardine — specs
| Spec | Relay Agents | Sardine |
|---|---|---|
| Agent Rank | 73 / 100 (A) | 67 / 100 (B) |
| Autonomy | Semi-autonomous | Autonomous |
| Pricing | Freemium · from $18 | Subscription |
| Open source | No | No |
| Capabilities | Tool use, Memory | Tool use, Memory, RAG, Multi-agent |
| Integrations | 4 apps | 4 apps |
| Verified | Verified | — |
| Released | Mar 2025 | Jan 2025 |
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?
Sardine
Agent Rank
67/ 100
- Autonomy
- 9
- Capabilities
- 8
- Integrations
- 6
- Pricing
- 4
- Polish
- 7
- Verifiability
- 6
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
Sardine
Pros
- +$145M total (a16z) — top of the agentic financial-crime category
- +Consolidates 11 fraud/KYC/AML vendors into one platform
- +Auto-reviews 40% of monthly applications — major cost reduction
Cons
- −Enterprise focus — not priced for SMB fintechs
- −Regulatory complexity requires legal review per deployment
- −Best ROI requires existing high-volume transaction flow
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
Sardine
Growth
Custom
Mid-market fintechs
- +Fraud + AML core agents
- +4 integrations
- +Standard SLA
Recommended
Enterprise
Custom
Large banks + fintechs
- +Full agent suite
- +Unlimited integrations
- +Custom rules engine
Sovereign
Custom
Regulated
- +EU/US data residency
- +On-prem option
- +Dedicated CS
Which one should you pick?
Relay Agents
Pick Relay Agents if cost is the main constraint or if you want a vendor we've verified for accessibility and pricing accuracy.
Try Relay Agents →Sardine
Pick Sardine if you want the highest autonomy and the verification loop is in place.
Try Sardine →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick Relay Agents or Sardine in 2026?+
Pick Relay Agents if cost is the main constraint or if you want a vendor we've verified for accessibility and pricing accuracy. Pick Sardine if you want the highest autonomy and the verification loop is in place. Most working teams running both can use Relay Agents for primary work and Sardine for the workflows where its specific strengths matter.
What's the price difference between Relay Agents and Sardine?+
Relay Agents starts at Freemium · from $18; Sardine starts at Subscription. Relay Agents 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 Sardine?+
Sardine 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.
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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 Sardine
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