LineSight vs PSImetals: Mill-Scale Production Management or Service-Center Planning?

What PSImetals does well

PSImetals covers the whole production side of a metals producer. PSI describes the PSImetals Service Platform as integrating supply chain management, advanced planning and scheduling, and manufacturing execution, with modules for planning, production, quality and logistics, plus energy and decarbonization services. For a mill, one system that carries an order from planning through the lines to shipment is the point.

The VAMA project shows the reach. Valin ArcelorMittal Automotive Steel, a producer of automotive steel with 2 million tons a year of capacity, went live on PSImetals 5.20 in December 2022. The scope covered surface treatment, cold rolling and the plant's service center, and included sales and operations planning, order scheduling, line scheduling, production management, order dressing, quality execution and logistics, connected to Level 2 and Level 4 systems. PSImetals then took on a new continuous galvanizing line and the re-coiling and packaging lines.

PSI is also moving on AI in public. For Hannover Messe in April 2026 it announced a cloud-enabled, service-oriented version for metals that focuses on generative AI, with a Model Context Protocol interface to the PSI Factory Model and a chatbot that combines direct access to production data with the system documentation.

Where PSImetals stops short for an independent service center

PSI's metals-industry page does not mention service centers or slitting, and its named customers are producers. The VAMA go-live is the clearest published case of service-center processes inside PSImetals, and that service center sits inside a steel plant, fed by the same planning system as the lines upstream.

Scale is the other question. PSI does not publish implementation times or prices. A platform spanning planning, MES, quality and logistics connects to a great deal of what a mill runs, and our inference from that scope is that a rollout is a much larger project than putting planning software on a service center's ERP. PSI may have faster paths for a single module; ask.

Overlap matters too. An independent service center usually already has a metals ERP holding inventory, tags, genealogy, certs and invoicing. Much of PSImetals' breadth would cover ground that ERP already holds, and the part a service center most needs, which orders to cut from which coil tomorrow, is a small slice of the platform.

How LineSight works differently

LineSight does one part of that stack, for a different customer. It sits on top of the service center's ERP and does not replace it. It reads open orders and live coil inventory, builds slitting and cut-to-length plans for flat-rolled coil and saw cut plans for bar, tube and pipe, and shows what is cut from which coil and why. A person approves every plan before it reaches the ERP or the floor. Work orders, PDF plans and ERP updates then go out in one click, and the ERP stays the system of record.

The constraints are the ones a service center lives with: gauge, width, grade, PIW, ID/OD, knife setups, multi-pass, min and max mults, coil weights, skidding, toll processing and must-ship orders. Planner overrides are kept, and later plans respect them.

The difference shows most in time to value. LineSight's onboarding is free and on-site, and most customers are fully live in under a month. What it needs from the service center is a technical contact for the integration, some real data to configure against and a few hours of the planner's time. LineSight claims no MES, quality management or shop-floor tracking; if you need those, PSImetals publishes them.

Fit by type of operation

An integrated producer with cold rolling and its own service center

PSImetals. Planning the service center in the same system as the lines upstream is what it is for, and VAMA is a published example of exactly that shape.

An independent service center with three slitters and a metals ERP

LineSight. The problem is choosing coils and patterns for a daily order book, on top of an ERP that already keeps the records. If that ERP is PS Data, INVEX or Enmark, LineSight is already live with it.

A service center owned by a mill group

It depends on where the order book lives. If the group runs PSImetals and the service center's orders flow through it, extending PSImetals keeps one system. If the service center runs its own ERP and customers, LineSight plans on top of that. We know of no published case of the two running side by side.

Pricing and time to value

Can you use both?

Not in the same operation, since both would build the cutting plans. A group could run PSImetals at its mills and LineSight at separate service centers that keep their own ERPs and order books. We know of no published example, so treat that as a possibility rather than a pattern.

The bottom line

PSImetals is mill-scale production management with real depth, a long list of producer customers and a public AI roadmap. LineSight is a planning layer for service centers that keeps the ERP in place and puts every plan in front of a person. LineSight's published result is from one service center, Elite Steel: scrap down 2.9 points and about $850K in added annualized revenue. A pilot on your own orders is the better test. If you are a producer choosing between enterprise suites, see PSImetals vs DELMIA Quintiq.