pressSeptember 2026
Tweezr on the IBM Z and LinuxONE Ecosystem Podcast
Ohad Kotler joins IBM's z/Action! series: agentic root-cause analysis, tested fixes, and why AI transformed software everywhere except the banking core.
System-Intelligence for financial core systems.
Know your core, evolve it without fear.
You can't replace 40 years of business logic -
and you shouldn't have to.
Trusted by
Working alongside the platforms banks already rely on.
The IBM Technology Partner mark is a trademark of International Business Machines Corporation, registered in many jurisdictions worldwide.
0%
Time saved
On system-analyst SDLC tasks - feature design, reverse-engineering, incident resolution
0 weeks
Time to Value
Pilot to first answer you can trust
0
Analyzed daily
Non-trivial code dependencies, and counting
Trusted by
Working alongside the platforms banks already rely on.
The IBM Technology Partner mark is a trademark of International Business Machines Corporation, registered in many jurisdictions worldwide.
Why Tweezr
Experts retire.
The blueprint doesn't.
Tweezr turns your legacy core into a deterministic, queryable map, so your team and your AI know exactly what breaks before you change a thing.No guessing, no archaeology, no surprises.
Best of Show · FinovateEurope 2025 & 2026Runs on-prem · your code never leaves
How we deliverEvery line mapped.
Every line mapped.
Every answer proven.
Three steps from raw code to grounded answers: map the estate, layer on business meaning, ask anything - every answer traced to the code behind it.
01Map
RAW · technical labels
We ingest your estate on-premise and build a deterministic map: every program, job, field, dependency, and business rule. No model required, and nothing leaves your perimeter.
SessionsBilling Engine - Dependency Tracev1
What does the Billing Engine depend on?
CBBILL01.cbl
1/3
·Thought for 4s10:27 AMDirect dependencies
Ask a follow-up question…
02Understand
SEMANTIC · business meaning
We layer business meaning over the map: rules, flows, and decision tables your engineers and your AI can read, traverse, and edit.
SessionsBilling Engine - Dependency Tracev1
What does the Billing Engine depend on?
CBBILL01.cbl
1/3
·Thought for 4s10:27 AMDirect dependencies
Ask a follow-up question…
03Answer
AGENTIC · grounded answers
Your AI answers grounded in that map, cited to the exact program, paragraph, and field, and re-runnable. No invented dependencies, no confidently-wrong refactors.
SessionsBilling Engine - Dependency Tracev1
What does the Billing Engine depend on?
CBBILL01.cbl
1/3
·Thought for 4s10:27 AMDirect dependencies
Ask a follow-up question…
Deterministic & cited
Every answer is re-runnable and audit-ready.
On-prem by default
Your code and data never leave the perimeter.
Decision models, not just maps
Business logic you can read, traverse, and edit.
Why not just Copilot or Claude Code?
Your coding agents -
great agents, finally grounded.
On a 40-year-old core, AI agents guess. Tweezr is the verified, system-level map they stand on - the ground truth Copilot and Claude Code consume.
One verified map - fed to every agent you already use
Claude Code
Anthropic
OpenAI Codex
ChatGPT
Antigravity
Google
GitHub Copilot
Microsoft
Amazon Q Developer
AWS
AI agents alone
Probabilistic. Plausible. Unanchored.
Confident, fluent - and wrong, with nothing underneath to catch it.
AI agents on Tweezr
The same agents - on solid ground.
The same agent, reading from one verified map - answers it can prove.
We don't guess.We determine.
The logical first step to any evolution roadmap
Three roads, every one starting blind - and the one capability underneath them all.
The roads you’re told to choose between
Stay as-is
Locked in. Delivery slows, risk compounds, and the know-how walks out the door.
Timeline
Falling behind
Risk
Knowledge erosion
Cost
Compounding
Wrap & Extend
New layers on top - complexity compounds over a core that never leaves.
Timeline
~12 months
Risk
Unmaintainable core
Cost
High
Rip & Replace
A clean slate, sold as a multi-year, big-bang gamble.
Timeline
2 - 8 years
Risk
"Big bang" failure
Cost
Very high
The capability underneath all three
One engine, any path
Tweezr isn't a third road - it's the ground beneath all of them. Decode the core first, then evolve it your way. Predictable, evidence-backed, low-risk.
Timeline
Weeks, not months
Risk
Minimal risk
Cost
Predictable
See ROI on your legacy systems in days, not months.
<30 minutes
to onboard a developer via natural language interface
Zero
customer data/PII exposure - nothing leaves the bank's landing zone
<45 min vs. weeks
for process archeology that used to take weeks
<10 minutes
to identify root cause of incidents
1 - 4 weeks
On-prem deployment
100%
of answers cited to the exact program, paragraph, and field
What clients say
Chosen by teams who can't afford to guess
Try Tweezr on your stack today
Minimal red-tape, going deeper only on your terms
01Playground
Tweezr cloud
Demo repoTweezr
Play with demo
Use our hosted environment with our sample code. Sign in and try the deterministic engine end-to-end with zero setup or data sharing.
What will I get?02Sandbox
Your code
Tweezr cloud
Your repoTweezr
Try online
Share your code into our environment. No infrastructure to stand up - see Tweezr work on your real systems and assess fit on your terms.
Does it actually work?03On-premise POC
Your environment
Your repoTweezr
Contact us
Deploy Tweezr on a single machine using your existing AI licenses, or run it inside your own cloud - your code never leaves your perimeter.
Will my team speed up?04On IBM Z
IBM Z / LinuxONE
Your mainframeTweezr
Run on IBM Z
Run Tweezr as a container on Linux on IBM Z or IBM LinuxONE - co-located with the core it maps, inside your own perimeter.
Can it run on my mainframe?Updates
View all newsLatest news
pressFebruary 2026
Tweezr Wins Best of Show at FinovateEurope 2026
Tweezr recognized for innovation in legacy system modernization at the premier fintech conference in London.
newsSeptember 2024
Tweezr Joins ABN AMRO Accelerator Program
Selected for the ABN AMRO-sponsored accelerator program, validating our approach to legacy system evolution.
Secure your system's future with the system-intelligence platform for safe legacy change.