Every firm in the tier can swap its AI model. Not one can leave its cloud.
Model-agnostic is not vendor-independent. A loop you run on someone else's cloud is a services contract with an API, not a software asset you own.
The most useful frame this week came from outside the sector. In a memo posted in mid-June that drew tens of millions of views, Microsoft chief executive Satya Nadella argued that the durable advantage in the AI era is not the model a firm can access. It is the learning loop it owns on top of the model, the thing that compounds a company's own judgment and survives when the underlying model is swapped out. Pick the right model, he suggested, and you are answering the wrong question.
Every firm in the Indian IT tier has adopted the first half of that test. They are all model-agnostic. Each runs a gateway that lets a client swap one general-purpose model for another without rebuilding the workflow on top. TCS, Infosys, HCLTech and Wipro have all shipped some version of it. That is the easy half, and it is now table stakes rather than an advantage.
Not one of them has passed the hard half. Every firm in the tier rents the ground it runs on: IBM's watsonx, Amazon's Bedrock, Google's Vertex, Microsoft's own Azure, frontier models reached through a partner. Being able to swap the model is not the same as being able to leave the vendor. A loop you run on someone else's cloud is not a software asset you own. It is a services contract with an API in front of it, and the market understands the difference even when the sales decks blur it.
This is why none of these firms earns a software multiple no matter how large its AI line, and why the old order has scrambled. TCS, the sector's bellwether for fourteen years, lost its valuation premium late in 2025, and HCLTech now trades above it, not on a bolder AI story but on a mix that bleeds slower under automation. The market is ranking these firms by how exposed they are, not by how much they can swap. The one thing it would actually re-rate is an outcome the client owns and keeps, and that is the half none of them has shipped.