Estimate request latency from prompt size, output size, throughput, queue time, and safety margin.
A production-minded latency planner for LLM apps. Estimate prompt processing, generation, queueing, network overhead, and retries to understand whether a request fits your SLA. Great for planning fast assistants and user-facing agents.
Got questions? We’ve got answers. Here are some of the most common inquiries about LLM Latency Budget Calculator.
LLM latency budget calculator
Bottleneck
Estimated throughput: 137.1 tok/s
Budget guidance
Real latency includes queue time, network hops, prompt prefill, generation speed, tool calls, and a margin for retries. Budget with headroom, not hope.
Production rule
Promise latency from the user's point of view. If your SLA is 3 seconds, keep p95 well below 3 seconds so retries, cold starts, and back-end spikes do not blow the budget.