Weights & Biases

Weights & Biases Weave

Tracing, evals, and experiment tracking unified.

Pricing
freemium
Stack layer
observability
Agent type
general
Maturity
production

Weave extends W&B’s experiment-tracking lineage into agent traces and evals.

Strengths. One pane for training, eval, and runtime traces.

Weaknesses. Most useful if you already use W&B.

Use it when your team already lives in W&B for ML experimentation.

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The Agent Brief

Three things in agentic AI, every Tuesday.

What changed, what matters, what builders should do next. No hype. No paid placement.