IBM LinuxONE and Linux on IBM Z
Tweezr on IBM LinuxONE and Linux on IBM Z.
Deterministic system intelligence for the mainframe estate, running on the same platform as the core it maps, inside your perimeter.
Support statement
Tweezr is available on and supported on IBM® LinuxONE and Linux® on IBM Z®.
The full Tweezr platform (ingestion, static analysis, the dependency graph, and local model inference) runs natively on the s390x architecture, deployed on Linux running on IBM Z and IBM LinuxONE, with no outbound calls to external services.
Find Tweezr in IBM's ISV solutions catalog for IBM ZThe whole platform, on the frame.
From ingestion to local inference, every stage runs on Linux on IBM Z or IBM LinuxONE. Nothing calls out.
Why the platform matters
Built for the platform your core already trusts.
In our experience, every cloud environment we deploy into is a fresh design. The mainframe is the one target that already looks familiar when we arrive, so Tweezr's architecture matches that posture rather than working around it.
Native s390x, not emulation
Tweezr runs as a native s390x build on Linux on IBM Z or IBM LinuxONE: not emulation, and not a client calling back to a cloud service. Source code never leaves your infrastructure.
Inference runs on the same frame
Model inference runs locally on IFLs alongside everything else. No metered endpoint, no external provider to select, and no per-token bill that grows with use.
No outbound calls
The system model is built from code and metadata, not production customer data, and nothing leaves the machine. That is what makes it safe to run next to a core.
On the platform
What Tweezr delivers on IBM Z.
The mainframe is not the problem. The opacity is. Tweezr closes that gap with a model of the system you can verify, not trust on faith.
A deterministic map of the estate
Tweezr parses COBOL, JCL, copybooks and surrounding artifacts into an explainable model of how the system actually behaves, not a probabilistic guess.
Blast-radius impact analysis
See every program, job and data structure a proposed change touches before a line of code moves.
Business-rule extraction
Recover the rules encoded in decades of production code, with a citation back to the exact source line.
Field-level data lineage
Trace a value end to end across programs, files and databases: evidence regulators and auditors can follow.
Batch window optimization
Combine SMF records with extracted process flows to see the nightly batch window as it really runs, and find what can be shortened, reordered or retired.
A grounded foundation for AI
Feed the coding agents your teams already use with cited, re-runnable truth instead of guesses about the core.
On the IBM Z and LinuxONE Ecosystem Podcast
The Expert Who Never Retires.
Tweezr CEO Ohad Kotler joins IBM's z/Action! series on why AI transformed software development everywhere except the banking core, and what changes when agents can do root-cause analysis against a deterministic blueprint on IBM Z.
Working alongside IBM
Run an IBM Z estate?
Tweezr is engaged with the IBM Z and IBM LinuxONE ecosystem to bring deterministic system intelligence to mainframe-first institutions. Our focus is the work these organizations actually need: understanding what the core does today, changing it safely, and giving modern AI tooling a foundation it can be trusted to build on.
IBM, IBM Z, IBM LinuxONE, and LinuxONE are trademarks or registered trademarks of International Business Machines Corporation in the United States and/or other countries. The IBM Technology Partner mark is a trademark of International Business Machines Corporation, registered in many jurisdictions worldwide. Linux is a registered trademark of Linus Torvalds. Other product and service names may be trademarks of IBM or other companies.