AgentSimSimulate your agent before you ship it
AgentSim runs your agent definition against a batch of simulated scenarios and reports the success rate and failure modes - a pre-release safety gate that catches bad behavior before real users do.
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Key takeaways
- Scenario generation
- Success rate
- Failure modes
AgentSim — decision-support themes
Honest capability chips — not fabricated customer counts or uptime stats.
AgentSim — definition
AgentSim — Simulate your agent before you ship it Use it as decision-support: demo mode works without a live key; live runs require configuration. No fabricated metrics, and no claims for SSO/CSV/Slack unless that surface is actually shipped.
What this is NOT
- Not a law firm, GRC platform, or certification body.
- Not a guarantee that outputs will satisfy every regulator or auditor.
- Not a substitute for qualified human review on high-stakes decisions.
Controller / Processor — When packs mention privacy roles, we use GDPR Art.4 labels (decision-support only).
Where teams get stuck without AgentSim
Scenario generation
Without reliable scenario generation, work stays inconsistent and gaps show up after ship.
Success rate
Without reliable success rate, work stays inconsistent and gaps show up after ship.
Failure modes
Without reliable failure modes, work stays inconsistent and gaps show up after ship.
Pre-release gate
Without reliable pre-release gate, work stays inconsistent and gaps show up after ship.
Describe. Review. Ship with AgentSim
Simulate your agent before you ship it
Scenario generation
Scenario generation — deterministic and exportable. Decision-support, not a certificate.
Success rate
Success rate — deterministic and exportable. Decision-support, not a certificate.
Failure modes
Failure modes — deterministic and exportable. Decision-support, not a certificate.
Pre-release gate
Pre-release gate — deterministic and exportable. Decision-support, not a certificate.
Everything you need to ship faster
Scenario generation
Use AgentSim to scenario generation.
Success rate
Use AgentSim to success rate.
Failure modes
Use AgentSim to failure modes.
Pre-release gate
Use AgentSim to pre-release gate.
From idea to result in 3 steps
Input
Describe your goal in plain language.
Process
AgentSim structures the work and runs the workflow.
Ship
Copy, export, or upgrade for 40 runs/day · 300/mo.
Where teams use AgentSim
Simulate your agent before you ship it
Scenario generation
Use AgentSim to scenario generation.
Try it on this page
or generate below.
Saved history
What you get on the free tier
Try it on this page
Paste an agent definition in the Studio and read the scenario note — no account, no credit card.
Deterministic by default
Every check runs from a versioned rule set with severity levels and concrete remediation steps, not guesswork.
Pay only if you need more
Free tier covers casual use. Upgrade for higher volume, saved history and export when your workload grows.
Honest boundaries
AgentSim — Simulate your agent before you ship it Use it as decision-support: demo mode works without a live key; live runs require configuration. No fabricated metrics, and no claims for SSO/CSV/Slack unless that surface is actually shipped. Decision-support only — not a certificate, legal opinion, or conformity assessment.
Simple plans that scale
All paid plans include
- Scenario generation
- Success rate
- Failure modes
- Email support on paid plans — no hidden add-ons for core studio use
- Limited daily AI runs (3/day · 15/mo)
- Studio demo (no extra LLM fee)
- AI included: 40 runs/day · 300/month
- No separate AI subscription required
- Priority support · Yearly $290
Feature comparison
What each plan includes — quotas reflect the enforced fair-use limits.
| Dimension | Free | Pro | Enterprise |
|---|---|---|---|
| Usage | |||
| AI runs | 3/day · 15/mo | 40/day · 300/mo | 200/day · 3000/mo |
| Report export | Watermarked | Clean export | Clean export |
| Audit log | Not included | ✓ Included | ✓ Included |
| Product | |||
| Scenario generation | ✓ Included | ✓ Included | ✓ Included |
| Success rate | ✓ Included | ✓ Included | ✓ Included |
| Failure modes | ✓ Included | ✓ Included | ✓ Included |
| Pre-release gate | ✓ Included | ✓ Included | ✓ Included |
| BYOK (your LLM key) | Not included | Not included | ✓ |
| SSO | Not included | Not included | Roadmap |
| Support & compliance | |||
| Support | Community | Priority | Custom SLA |
Already paid? Unlock Pro with your license
Licenses are issued manually after your payment is confirmed: we generate one per paid order and send it to the purchase email, typically within a few hours. Enter it below to activate Pro on this device — no account needed. Nothing yet? Write to lixingliangsy@163.com and reference your order email.
Your questions, answered
What does AgentSim do?
It runs your agent definition against a batch of simulated scenarios and reports the success rate and failure modes — a pre-release safety gate that catches problems before users do.
What kind of scenarios does it generate?
Task-style scenarios drawn from your agent description: edge cases, ambiguous inputs, and multi-step goals where an agent is most likely to fail.
Is AgentSim a replacement for production testing?
No. It is a pre-release gate. Use it to catch failure modes early; real traffic still needs monitoring in production.
How is success rate measured?
Across the scenario batch: share of runs that reached the goal. Failure modes are grouped so you can see which step breaks most often.
Does it need my own model key?
Free and demo run without live calls; Pro uses the platform key. Enterprise can bring its own key (BYOK).
Which countries and regions can I use AgentSim in?
As a cloud web app it is reachable from any country with internet access; there is no region lock by default.
Is my agent definition private?
Your definition is used only to generate and run scenarios and is not sold. Details are on our Privacy page.
What languages does it support?
Interface and reports are in English; scenario input in other languages is supported where the underlying model understands them.
Quick answers
- Runs your agent against a batch of scenarios.
- Reports success rate and grouped failure modes.
- A pre-release gate, not a production monitor.
- Free and demo run without live AI calls.
How it compares
| Dimension | Manual | AgentSim |
|---|---|---|
| Setup | Write test cases by hand | Auto-generated scenarios |
| Coverage | Sample you imagine | Batch across edge cases |
| Signal | Pass/fail | Success rate + failure modes |
| Best for | Post-build QA | Pre-ship gate |
When not to use: For live production monitoring — pair it with a runtime monitor instead.
- agentsim howto 2026 — From the AgentSim blog.
- agentsim overview 2026 — From the AgentSim blog.
- Fleet launch notes — AgentSim ships in the LX AI Micro-SaaS fleet.
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