Built for executives: fast, game-style production line simulation that shows what each decision is worth, from one machine to the whole supply chain.
Fix either one and the line responds very differently.
Most simulation was built for assembly, where every item is tracked on its own. Point that at a filler running hundreds of units a minute and the model runs slower than the line. ReliaSim models rates and flow instead, so it keeps up.
We build playing fields that get the math right. The film shows what that means before capital is committed.
Apply for a free assessment →A full year of the Buffer-Options bottling line runs in 0.3 seconds, and 1,000 of those years take 32 seconds on a laptop.
ReliaStats® groups each machine’s stops by cause and fits a time-to-failure and time-to-repair curve to every one.
Try ReliaStats in the Sandbox →
ReliaSim builds your line from machines, converters and the buffers between them, and every run comes with eight analyses.
Open the Sandbox →
Run each option a thousand times from a fixed seed, so anyone can repeat the answer and see the spread one run hides.
See the method →The free Sandbox runs in your browser. Every number on screen comes from the ReliaSim engine.
A game · Beat the Bottleneck
Can you get more out of this line?
Every machine on this bottling line runs at the same speed, yet it delivers only 54% of what it could. Fix one problem or add buffers, and ReliaSim runs your line ten times. Then see what Lean, TPM and TOC would have done.
Play Beat the Bottleneck →
Eight curated models from the same real bottling line, across two tracks (Constraint-Level rollups vs LEDS-Level drill-downs) and four complexity steps. The engine ran each model once and saved the results. Read the model documentation → to see what each contains, and why all eight predict the same throughput but disagree about the cause.
Capper_Upper Plow Area dominates at 20%.ReliaSim exposes your production model through a Model Context Protocol (MCP) server. Claude and other MCP-compatible assistants can load, inspect, run, and question the model in plain language. You drive the conversation and the model does the math.
Node types, buffer positions, interrupt configs and constraint availability, in plain language.
Per-constraint availability, OEE, and multi-run stats instantly.
Utilization, inflow/outflow, empty/full percentages, and throughput distributions.
Topology visuals and detailed exports, all from one conversation.
Every response comes from your own validated production graph.
/mcp is a live JSON-RPC endpoint. Point Claude, Claude Code, or any MCP-compatible
client at it. Setup is in the
documentation.
Most sim tools hand you a blank canvas. ReliaSim hands you the method our own modeling team runs. Every project follows the same four steps. See how a project runs →
Drop in your line event CSV. The system checks for gaps, time resolution, and fault-code hygiene before you build anything, so bad data gets caught before it becomes a bad model.
You don't need to know which distribution fits which interrupt type, because the method does. A typical build takes 15 minutes.
Fix priority, line speed, buffer sizing, redundancy and resupply, set up as structured scenarios instead of blank-slate guesswork. See the five →
Every scenario run comes with the topology, the assumptions, and the sensitivity check a capital review needs.
ReliaSim is made by ChiAha in Maryville, Tennessee. Andrew Siprelle created discrete rate simulation in 1990, and the same team has been modeling production lines ever since. Meet the team →
The quickest way to see it is one question on your own line. You can also explore on your own or walk through a real model with us.
"It runs on my desktop. No integration, no IT project, no waiting. I just install it and start modeling."— Technology Director, Essity
"I've never seen anything like this."— VP of Food Production
Food & Beverage Pharma & Life Sciences Aerospace & Defense Energy & Chemical Packaging & CPG Paper & Pulp Semiconductor Academic Research
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