Weights & Biases

Introducing W&B Serverless SFT: Fine-tune LLMs with no infra headaches

AI agent observability

• Evaluations
• Agents
• Inference
• Safety and scoring

Build models

• Computer Vision
• NLP
• MLOps
• LLM

About Weights & Biases

• Integrations
• W&B releases
• Events
• Podcast

Recent Publications

• Track, guard, and remediate AI usage with W&B Weave and CrowdStrike Falcon AIDR
  Learn how Weave and CrowdStrike Falcon AI Detection and Response can help ensure internal AI systems are handling sensitive data appropriately
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• Tabular ML didn't die. It was just waiting for agents
  Learn how our tabular data agent, took #1 on the MLE-bench tabular slice with two golds, three above-median, four-for-four valid submissions.
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• Introducing CoreWeave ARIA: AI Research and Iteration Agent
  Your experiments are already tracked. Now let the agent read them, analyze them, and help you turn every experiment into continuous improvement.
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• We'll be at the AI Engineer World's Fair - Come Say Hi
  Join Weights & Biases by CoreWeave at AI Engineer World’s Fair in SF. Visit booth UG 24 for demos, swag, speaker sessions, and new Weave agent tracing features.
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• How to structure effective Agent Skills and evaluate whether they actually work
  Improve your Vibe Coding Skills using Agent Skills and evaluate them with Skills Bench and W&B Weave
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• ART-Optimized Megatron (AOM): 12x higher training throughput
  How we massively improved training throughput on our open source ART training library
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• Building a production-grade MLOps pipeline for VLA models
  This report covers the development of a compact vision-language-action model built around Gemma 3 270M.
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• Getting started with embodied chain-of-thought (ECoT)
  Learn how to get started with Embodied Chain-of-Thought, a robotics reasoning approach that helps vision-language-action models plan, explain, and execute grounded actions.
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• Governance workflows for AI agents: an evidence-backed review gate on W&B Weave
  A technical walkthrough of an open-source AI governance toolkit that turns scattered evals, red-team runs, and approvals into one reproducible review gate, with every finding traced in W&B Weave.
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• Tutorial: Benchmarking Claude Opus 4.8 honesty with BeHonest and W&B Weave
  How honest is Claude Opus 4.8 compared to 4.7? We ran both models through the BeHonest benchmark and logged every result into W&B Weave.
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• New in W&B Weave: Observability and continuous improvement for production agents
  We're shipping a new set of capabilities that make Weave the best tool to raise and maintain agent quality in production. Here's what you need to know.
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• Build a Robotics Data Flywheel on CoreWeave using NVIDIA Cosmos 3
  A foundation is large-scale synthetic data and compute, a requirement that is no longer an issue when teaming up with CoreWeave and NVIDIA.
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• Product newsletter: Updates and new features for May 2026
  From a brand new CoreWeave Sandboxes offering to updates in Models and to our iOS app, here's what we released in May.
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• Running agents in production with Google’s Gemini Managed Agents
  In this article, we will use the Gemini Managed Agents API to build a small bug-finder agent.
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• Building a text-to-SQL agent
  In the second edition of our AI Builders series, learn how to build a text-to-SQL agent.
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• Introducing the W&B MCP Server: An agent-native interface for your experiments and traces
  Our MCP server is generally available now. Built as primitives so the agent can do the rest.
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• Product newsletter: Updates and new features for April 2026
  From universally available automations to brand new Weave dashboards, here are the big features we released in April.
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• Training a Gemma-3 powered VLA model
  This report covers the development of a compact vision-language-action model built around Gemma 3 270M.
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• From sequence to structure: Tracking protein fold prediction with W&B
  Learn how to track protein fold prediction using ESMFold and Weights & Biases. Explore a complete biotech pipeline, from 3D structure visualization and pLDDT tracking to Bayesian sweeps and model versioning.
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• Building an AI agent for interior design
  In the inaugural edition of our AI Builders series, learn how to build an AI agent for home decor.
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• Tutorial: Building a production-ready fraud triage Copilot
  Build, evaluate, guard, and monitor an LLM fraud analyst end-to-end with W&B Weave.
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