Built using W&B Weave, ARIA enters preview, turning experiment data into continuous model and agent improvement

CoreWeave, Inc. (NASDAQ:CRWV), The Essential Cloud for AI™, today announced the launch of CoreWeave ARIA (AI Research & Iteration Agent), an AI research agent built directly into Weights & Biases (W&B) by CoreWeave that reads experiment data, uncovers hidden insights, and drives continuous model and agent improvement. ARIA was built using W&B Weave, CoreWeave's agent development platform. W&B Weave's agent development capabilities also enter general availability today.

ARIA accelerates the AI research loop by closing the gap between analysis and action, turning the data teams already generate into a compounding engine for better models and more reliable agents. It analyzes thousands of runs and tens of thousands of metrics in minutes.

"ARIA has become a valuable part of my daily workflow," said Praneeth Gangavarapu, PhD Candidate, at Scripps Research. "It helps me quickly generate reports, create sweep configurations from natural language, and automate tasks that would otherwise require a lot of manual setup. What excites me most is the potential to connect workflows end-to-end, from launching experiments and configuring automations to generating insights and reports automatically. Even today, the agent saves time on repetitive work and makes interacting with Weights & Biases much more intuitive."

Other than compute and data challenges, research teams also face the pressure to bring high quality models and agents to market faster. However, they spend significant time manually configuring dashboards, writing one-off analysis notebooks, and extracting insights from thousands of experiments. As frontier labs and enterprise AI teams race to ship more capable models on tighter timelines, that manual middle layer has become the critical constraint. ARIA removes it.

ARIA is grounded in CoreWeave's deep operational history, with years of powering AI training at a scale that encompasses some of the largest and most complex models ever developed. CoreWeave's visibility into how frontier teams train, iterate, and optimize through nearly one billion runs and trillions of metrics tracked in Weights & Biases is what made ARIA possible and continues to fuel its development.

The next frontier in AI development is moving beyond faster compute and now depends on faster iteration. Tools that can autonomously analyze, surface insights, and drive continuous improvement aren't a nice-to-have, they're becoming table stakes for any team serious about staying competitive. ARIA is designed to address this direction.

"Researchers are making rapid progress in model development, but their management tools have not kept pace," said Chen Goldberg, Executive Vice President of Product and Engineering at CoreWeave. "ARIA is how we close that gap. It’s an always-on research collaborator that turns the experiment data teams are already generating into continuous, compounding improvement. This is what the self-improving agent loop looks like in practice, and it's a meaningful step on the path to superintelligence."

From Results to Next Steps, Automatically

ARIA is a coding agent that collaborates with researchers from the moment they launch a W&B project. It reads runs, understands project structure, and builds live visualizations to back up its analysis. The result: a dynamic visualization researchers need for analysis on the fly – making it easier to take action and back up research findings. ARIA delivers the following core capabilities:

Built for continuous improvement: ARIA powers the full research cycle, forming hypotheses, launching experiments, evaluating results, and recommending next steps. Models and agents keep improving as a result, so researchers spend their time on the problems only they can solve.
Live dashboards: When ARIA surfaces an insight, it doesn't reply with a wall of text. It creates W&B workspaces, panels, and reports to back up its findings — such as heat maps for two-dimensional parameter sweeps, parallel coordinates plots for hyperparameter interactions, and bar charts for comparing discrete configurations. These are live W&B dashboards that update as new runs come in, are visible to the full team, and are as configurable as anything built by hand.
Full experiment context, already loaded: ARIA enters every conversation with the project already loaded. It can reach across projects and into teammates' experiments, surfacing patterns across hundreds of thousands of logged metrics that would be impossible to spot manually.
Available on the go: ARIA is available in the W&B mobile app. Researchers can monitor runs, investigate results, and interact with it from anywhere.

"The bottleneck in AI development has shifted. Compute is more accessible than ever, but the ability to extract actionable insight from experiment data at speed remains a persistent challenge," said Nick Patience, Vice President & Practice Lead, AI Platforms, Futurum. "Tools that can autonomously analyze, surface insights and drive continuous improvement are becoming an increasingly important part of how competitive AI teams operate. ARIA reflects where the industry is heading."

ARIA expands on CoreWeave's unified agentic AI capabilities, which connect training, inference, and observability through W&B Weave, by adding a research agent that surfaces patterns across large-scale experiment data in real time and turns analysis into continuous improvement.

ARIA enters public preview today, with a roadmap focused on deeper autonomous research capabilities. Open any project in Weights & Biases, click the agent icon in the sidebar, and get started. Read the announcement blog here.

Built on Proven AI Infrastructure

CoreWeave consistently delivers industry-leading performance, demonstrated by record-breaking MLPerf benchmark results in inference and training, its position as the only AI cloud to earn the top Platinum ranking in both SemiAnalysis ClusterMAX™ 1.0 and 2.0, and its #1 ranking for inference speed and price-performance for Moonshot AI’s Kimi K2.6 and Kimi K2.7 Code in independent inference benchmarking conducted by Artificial Analysis.

About CoreWeave

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to move at the pace of innovation, building and scaling AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave serves as a force multiplier by combining superior infrastructure performance with deep technical expertise to accelerate breakthroughs. Established in 2017, CoreWeave completed its public listing on Nasdaq (CRWV) in March 2025. Learn more at www.coreweave.com.

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