IBM Launches watsonx Code Assistant, Delivers Generative AI-powered Code Generation Capabilities Built for Enterprise Application Modernization

07.08.2025 - 18:04:23

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in the range of 20-45%.

"Red Hat has already shown what domain-specific AI can do for IT automation at the community level," said Ashesh Badani, Senior Vice President and Chief Product Officer, Red Hat. "The release of watsonx Code Assistant for Red Hat Ansible Lightspeed has the potential to close skills gaps, create greater organizational efficiencies and free enterprise IT to deliver even more business value."

The Hybrid Cloud Platforms team within the IBM CIO Office uses Red Hat Ansible Automation Platform to support a wide range of tasks within their IT environment whether it's patching, resolving vulnerabilities, or running regular health checks of their systems. Bob Epstein, Leader of IBM CIO Hybrid Cloud Platforms, expects that the number of developers able to produce Ansible Playbooks with the full release version could increase as much as 10x as watsonx Code Assistant for Red Hat Ansible Lightspeed empowers other team members such as Site Reliability Engineers who can use natural language to generate Ansible-specific automation tasks.

"I like to look at our modernization journey in these stages: In the past we were crawling, doing a lot of things manually. Then, when we started automating, we were walking. Once we implemented Red Hat Ansible Automation Platform, we were running. And as we look ahead, with watsonx Code Assistant for Red Hat Ansible Lightspeed, I think we will be able to fly," said Robert Barron, Architect, Hybrid Cloud Platforms, IBM CIO Office.

For more information on IBM watsonx Code Assistant for Red Hat Ansible Lightspeed, please visit our website https://www.ibm.com/products/watsonx-code-assistant-ansible-lightspeed

Mainframe Application Modernization – IBM watsonx Code Assistant for Z

IBM watsonx Code Assistant for Z helps enable faster translation of COBOL to Java on IBM Z and enhances developer productivity on the platform. It is being designed to assist businesses in leveraging generative AI and automated tooling to accelerate their mainframe application modernization – while allowing clients to take advantage of the performance, security and resiliency capabilities of IBM Z.

Today, the product follows the application modernization lifecycle, starting with an application discovery capability, which maps out a technical understanding of the application and its dependencies. Then, an automated refactoring capability leverages the information captured in application discovery to identify selected elements to decompose the monolithic application into modular COBOL business services. Finally, watsonx Code Assistant for Z leverages generative AI to transform individual COBOL business services into object-oriented Java code. The next step in the lifecycle is validation testing. Anticipated in a future release, the product will support automated test case generation to validate the new COBOL or Java services.

TCS and IBM hold a long-term partnership that fosters a collaborative ecosystem to develop joint successes for their customers and stakeholders. Leveraging this partnership and the deep contextual knowledge, TCS has grown a purpose-led, dedicated, full-service practice for in-place application modernization.

"There is a significant need for the developer productivity gains that generative AI can bring to transform applications on the mainframe," said Keshav Varma, ISU Head, Technology, Software and Services Business Unit, TCS. "While watsonx Code Assistant for Z has only just become available, we have several clients that have already requested that we create proofs of concept for them. With decades of enterprise experience from both our companies, we look forward to building on our deep partnership with IBM using watsonx."

IBM Consulting Brings Expertise to Help Clients with IT Automation and Modernization

Early IBM Consulting engagements for both watsonx Code Assistant for Red Hat Ansible Lightspeed and watsonx Code Assistant for Z aim to provide clients with the ability to deliver continuous automation, Ansible Playbook productivity, quality improvements, and transformation of IT operations – in addition to helping them identify the right application areas to modernize with Z.

For those looking for more personalized use cases with watsonx Code Assistant, IBM Consulting and IBM Client Engineering can work side-by-side with clients to identify specific pain points and solve critical business and technical challenges from the users' perspective. IBM Consulting brings deep industry expertise in application modernization, IT automation and generative AI via dedicated Red Hat and watsonx practices that work closely with IBM Research, IBM Technology and Red Hat.

Statements regarding IBM's future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only.

About IBM

IBM is a leading provider of global hybrid cloud and AI, and consulting expertise. We help clients in more than 175 countries capitalize on insights from their data, streamline business processes, reduce costs and gain the competitive edge in their industries. More than 4,000 government and corporate entities in critical infrastructure areas such as financial services, telecommunications and healthcare rely on IBM's hybrid cloud platform and Red Hat OpenShift to affect their digital transformations quickly, efficiently and securely. IBM's breakthrough innovations in AI, quantum computing, industry-specific cloud products and consulting deliver open and flexible options to our clients. All of this is backed by IBM's long-standing commitment to trust, transparency, responsibility, inclusivity and service.

Media contact:
Rebecca Neufeld
rebecca.neufeld@ibm.com

1 IBM watsonx Code Assistant for Z includes an on-prem and as a service component. When the components are purchased together, watsonx Code
Assistant for Z includes the referenced generative AI capabilities.

2 IDC Market Note, IBM's watsonx Offers Generative AI for EnterpriseDevelopment and DevOps, IDC #US51203823, September 8, 2023