CoreWeave, Inc. CRWV has announced the acquisition of Weights & Biases, a leading AI developer platform, as part of its strategy to strengthen its leadership in high-performance AI cloud infrastructure. First announced in March 2025, the acquisition combines CoreWeave’s powerful compute capabilities with Weights & Biases’ suite of tools for model training, evaluation and monitoring—creating a unified, end-to-end platform for AI development. This integration is designed to accelerate AI innovation and enhance user productivity, while continuing to support flexible deployment across any infrastructure.
The acquisition of Weights & Biases added a customer base of more than 1,400 organizations. Management believes this combination will unlock greater value for the shared customers. At the same time, it continued to raise the bar on performance, becoming the first to deploy GB200 Grace Blackwell systems at scale on an AI cloud platform, powering top AI innovators like Mistral, IBM and Cohere.
Earlier this month, CoreWeave and Weights & Biases made their first joint product launch, showcasing the rapid integration and execution. Three major offerings were introduced, which aim to help AI teams develop, deploy and iterate faster by combining CoreWeave’s cloud infrastructure with Weights & Biases’ developer platform.
The launch comprises Mission Control Integration, which helps AI engineers quickly diagnose and resolve training issues by linking infrastructure events to training runs; Weights & Biases Inference, enabling access to top open-source models through a single interface; and Weave Online Evaluations, which monitors production AI agent performance in real-time across any cloud. Together, these products create a seamless platform to accelerate innovation, improve efficiency and empower developers to scale cutting-edge AI solutions with confidence.
For 2025, CoreWeave has guided revenues to be in the range of $4.9-$5.1 billion, fueled by surging AI-infrastructure demand.
However, the company faces intense competition in the AI cloud space with Nebius Group N.V. NBIS and Microsoft Corporation MSFT.
CoreWeave’s closest emerging competitor, Nebius, based in Amsterdam, is focusing on becoming a specialized AI infrastructure company. Unlike CoreWeave, Nebius has not pursued major acquisitions, but it has incubated a range of AI businesses. Its portfolio includes Toloka for data labeling and evaluation, TripleTen for tech education and Avride for autonomous driving technologies. In May 2025, Toloka secured $72 million in strategic funding led by Jeff Bezos’s venture fund, underscoring the strength and potential of Nebius’ in-house ventures. Nebius is betting on organic growth and vertical integration to build its position in the AI space.
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