OpenAI Launches B2B Marketplace with 32 Partners to Mirror Hyperscaler Distribution

OpenAI launched its B2B marketplace at DevDay on 29 Sep 2026 with 32 partners, aiming to position itself as the primary distribution platform for the AI ecosystem, similar to how AWS and Azure serve enterprise software. The move allows eligible enterprise customers to use part of their existing OpenAI commitment to purchase third-party products, consolidating AI sprawl and simplifying budgeting.

Strategic Positioning

The marketplace is designed to make OpenAI the infrastructure layer for AI apps, leveraging its existing enterprise relationships. By allowing customers to spend committed funds on partner products, OpenAI seeks to capture the distribution power that hyperscalers enjoyed during the SaaS era. This strategy is particularly relevant as open-weight models gain traction in token volume, though closed models still command higher spend and request counts.

Key Partners and Use Cases

Baseten is a notable partner, enabling OpenAI enterprise customers to use existing commitments for open models served by Baseten within Codex or via the Responses API. This allows organizations to optimize agentic workflows by routing tasks to the best-fit model, whether open or closed. Agentic coding remains the most widely adopted AI use case, making this flexibility critical for enterprises scaling code generation workflows.

Market Context and Risks

While the marketplace offers consolidation benefits, it faces challenges in replicating the seamless purchasing experience of cloud marketplaces from the 2010s. A potential risk is a power-law distribution where most reallocated spend goes to open-weight models via partners like Baseten, leaving OpenAI outside the token flow despite retaining the customer relationship. Conversely, if successful, OpenAI could enforce usage of its models by tying listing eligibility to model usage, reinforcing its market dominance.