Microsoft's open-source multi-agent framework — orchestrate conversations between specialised agents.
Multi-agentTool useCodeMemory
LangGraph vs Relay Agentswhich AI ops agent should you pick in 2026?
LangChain's stateful multi-agent framework — graph-based orchestration with persistence and human-in-the-loop.
Multi-agentTool useMemory
Human-in-the-loop workflow agents that connect 100+ apps with approvals.
Tool useMemory
LangGraph vs Relay Agents — specs
| Spec | LangGraph | Relay Agents |
|---|---|---|
| Agent Rank | 68 / 100 (B) | 73 / 100 (A) |
| Autonomy | Autonomous | Semi-autonomous |
| Pricing | Free · OSS | Freemium · from $18 |
| Open source | Yes | No |
| Capabilities | Multi-agent, Tool use, Memory | Tool use, Memory |
| Integrations | 3 apps | 4 apps |
| Verified | Verified | Verified |
| Released | Jun 2024 | Mar 2025 |
Agent Rank breakdown
LangGraph
Agent Rank
68/ 100
- Autonomy fit
- 9
- Capabilities
- 6
- Integrations
- 2
- Pricing value
- 10
- Polish & maturity
- 7
- Verifiability
- 7
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Relay Agents
Agent Rank
73/ 100
- Autonomy fit
- 8
- Capabilities
- 4
- Integrations
- 8
- Pricing value
- 8
- Polish & maturity
- 6
- Verifiability
- 10
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Pros & cons
LangGraph
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
Pricing
LangGraph
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
Which one should you pick?
LangGraph
Pick LangGraph if cost is the main constraint or if you want the highest autonomy and the verification loop is in place.
Try LangGraph →Relay Agents
Pick Relay Agents if its specific capabilities (Tool use, Memory) match what you need.
Try Relay Agents →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick LangGraph or Relay Agents in 2026?+
Pick LangGraph if cost is the main constraint or if you want the highest autonomy and the verification loop is in place. Pick Relay Agents if its specific capabilities (Tool use, Memory) match what you need. Most working teams running both can use LangGraph for primary work and Relay Agents for the workflows where its specific strengths matter.
What's the price difference between LangGraph and Relay Agents?+
LangGraph starts at Free · OSS; Relay Agents starts at Freemium · from $18. LangGraph 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, LangGraph or Relay Agents?+
LangGraph 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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See more alternatives: alternatives to LangGraph · alternatives to Relay Agents
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