Microsoft is considering integrating a fine-tuned version of DeepSeek V4 into Copilot Cowork, its enterprise AI assistant, as a lower-cost model option, according to The Decoder. The move signals that Microsoft is actively looking beyond its own and OpenAI's models to keep costs down for business customers.
Alongside the potential DeepSeek addition, Microsoft is also overhauling how it charges for Copilot Cowork—shifting from a flat monthly subscription to usage-based billing. Charles Lamanna, the head of Copilot, told The Decoder that flat-rate pricing is simply not sustainable, a candid admission that the economics of serving heavy AI users under a single fixed fee don't pencil out.
Axios also reported on Microsoft's interest in DeepSeek for enterprise AI, underscoring that the consideration is real and not just exploratory noise.
The shift to consumption-based pricing is already a broader trend across the AI industry, as providers grapple with the wildly uneven usage patterns of enterprise customers—some barely touch the product, others hammer it daily. Flat fees work fine for the light users but become money-losers when power users run thousands of queries a month.
For businesses already paying for Microsoft 365 Copilot licenses, this pricing change is worth watching closely: costs that once felt predictable could start fluctuating based on how much employees actually use the tool. The potential addition of DeepSeek—a Chinese-developed model that has made waves for its efficiency—adds a geopolitical wrinkle that enterprise procurement and compliance teams will need to weigh.