Problems / LLM serving, easy
All traffic goes through an AI gateway whose API key allows 1,500 requests a minute. Traffic is 40 a second.
Free to open. Runs in your browser, no sign-up.
Success ≥ 99%, time to first token p99 ≤ 2.5 s.
40 requests a second for 30 seconds: 100% request (reads).
What each component does in this design, and what calls it. The simulator mimics each one from these settings.
| Component | Its job here | Settings |
|---|---|---|
| AI gatewayAI gateway | Traffic enters here.Calls Load balancer.An AI gateway sits in front of model providers to add keys, quotas, logging and fallbacks. | 100000 slots · 1,500 calls/min |
| Load balancerLoad balancer | AI gateway forwards to it.Calls AI app.Layer 4 balancers route by IP and port; layer 7 balancers read HTTP and can route by path or header. | – |
| AI appApp service | Load balancer forwards to it.Calls Model.Little's law: throughput ≈ concurrency ÷ latency. 200 slots at 50 ms serve about 4,000 req/s. | 3 replicas × 500 slots · timeout 30 s |
| ModelLLM endpoint | AI app calls it.Latency has two parts: time to the first token, then a steady stream of tokens per second. | 400 streams |
Try it first. Open one hint at a time if you get stuck.
40 × 60 = 2,400 a minute.
The gateway rejects what’s over the limit.
Raise the gateway quota (or add keys).