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CoreWeave launches agentic AI tools to enhance real-world learning
The former Ethereum mining company rolls out secure sandbox environments designed to let AI agents learn from live production scenarios while cutting training costs.
CoreWeave, the AI infrastructure company that once made its living mining Ethereum, just unveiled a product that lets AI models learn on the job. The company’s new CoreWeave Sandboxes provide isolated execution environments purpose-built for reinforcement learning, AI agent tool use, and model evaluation at scale.
What CoreWeave Sandboxes actually do
At its core, the platform is a secure execution layer. It gives AI researchers and platform teams isolated environments where they can run reinforcement learning workloads, test agent interactions with real-world tools, and evaluate model performance without compromising the safety of production systems.
Customers have two deployment options. They can run Sandboxes on their own CoreWeave infrastructure, or they can opt for a serverless runtime through Weights & Biases, the ML experiment tracking platform CoreWeave acquired in 2025.
The Sandboxes also tie into CoreWeave’s Mission Control platform, which provides visibility and orchestration across AI workloads.
From crypto mining to AI infrastructure
CoreWeave’s origin story remains one of the more entertaining pivots in tech. The company was founded in 2017 as Atlantic Crypto, an Ethereum mining operation. When the 2018 crypto market downturn made mining economics look grim, the team realized they were sitting on a mountain of GPU hardware that could be repurposed for something with more durable demand.
That something turned out to be AI cloud computing. CoreWeave repositioned itself as a specialized GPU cloud provider, building infrastructure powered by NVIDIA technology specifically optimized for AI and high-performance computing workloads.
The company went public on the Nasdaq in March 2025 under the ticker CRWV, raising $1.5 billion. Since then, it has secured strategic partnerships and contracts with major AI players, though its stock has experienced volatility linked to AI infrastructure demand.
It’s worth noting that despite CoreWeave’s crypto origins, there’s no token or blockchain component to Sandboxes. This is a pure enterprise AI infrastructure play.