IBM is betting that some enterprises will never hand their source code to a public model, however capable it is. The company has made a self-hosted edition of Bob, its agentic software development platform, generally available.
Bob spans the whole development loop, from reading a code base and planning the work to making edits and confirming they hold up. Enterprises can now keep it on their own hardware, in private or sovereign clouds, or on networks cut off from the public internet entirely. That matters most to regulated sectors such as banking and government, and to teams maintaining long-lived systems on Java, IBM i and mainframe code.
IBM ships no model with the package. Buyers choose one from a supported list, then license and host it themselves, and the company has yet to publish a price, steering prospects to a demo request instead. The model a customer picks sets where the code and its context are handled.
Consider a bank. Core banking inference stays inside its own walls while a lighter workload can be sent to an approved external model. A developer still sees the same Bob either way; what changes is the architecture beneath, and that stays with the platform and security teams.
The release puts IBM alongside GitLab and GitHub, which fold agents into their own DevOps platforms, and Mistral, which pairs its agent with open-weight models. IBM’s pitch is aimed at the air-gapped, modernization-heavy customer that none of those rivals can easily reach.
