Multi-Agent System Cost Calculator
Estimate the cost of orchestrating multiple agents.
With the default inputs, $0.0731 per run — 3 agents x 5 steps · ~$438.75/month. Enter your own numbers below to recompute instantly; the full step-by-step math is shown under the worked example.
Results update automatically as you type.
- Cost per agent
- $0.0244
- Agents
- 3
- Cost per run
- $0.0731
- Cost per month
- $438.75
Multi-agent systems run several agents per task, multiplying token cost. Estimate the cost per run for a crew of agents each taking several steps.
How this is calculated
Cost per run = agents × steps per agent × (input per step × input price + output per step × output price). A crew of agents multiplies a single agent's cost by the number of agents, so a 3-agent, 5-step system is roughly 15 LLM calls per task. Monthly = per-run × runs per day × 30.
Is this a good result? What to do next
Multi-agent quality gains come at a multiplied cost — roughly the number of agents times a single agent's cost. It's worth it when specialization measurably improves results; otherwise a single well-prompted agent is cheaper.
Typical planning ranges
- Cost
- ≈ agents × single-agent cost
- 3 agents × 5 steps
- ~15 calls / task
- Routine sub-agents
- use cheaper models
Ranges are typical planning figures to sanity-check your result, not authoritative benchmarks. Your numbers will vary with use case, volume, and vendor.
How to improve this number
- Use cheaper models for routine sub-agents.
- Cut the number of agents or steps per agent.
- Share/cache context instead of duplicating it per agent.
Common mistakes
- Adding agents without measuring the quality gain.
- Running every sub-agent on a premium model.
When to use a different approach
For a single agent, use the AI agent cost calculator. For carried-memory growth, use the agent memory cost calculator.
Worked example (defaults)
With the default inputs above, here is the result:
- Cost per agent
- $0.0244
- Agents
- 3
- Cost per run
- $0.0731
- Cost per month
- $438.75
Sources & references
Frequently asked questions
Are multi-agent systems worth the cost?+
Sometimes. Specialized agents can improve quality, but the cost is roughly the number of agents times a single agent's cost. Use cheaper models for routine sub-agents.
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