Weights & Biases
An ML experiment tracking and model management platform that has expanded to support LLM development. W&B provides experiment logging, hyperparameter tracking, artifact versioning, and collaborative dashboards. Their Prompts and Weave products add LLM-specific tracing and evaluation.
Implements
Concepts this tool claims to implement:
- Benchmark primary
W&B Weave for LLM application tracing and evaluation. Track prompts, completions, and evaluation metrics. Compare runs across experiments.
- Fine-Tuning secondary
Experiment tracking for fine-tuning runs. Log training metrics, hyperparameters, and model checkpoints. Compare fine-tuning experiments.
- Training Data secondary
Dataset versioning and lineage tracking with W&B Artifacts. Track which data was used for which training runs.
Integration Surfaces
Details
- Vendor
- Weights & Biases Inc.
- License
- MIT (client) / Proprietary (cloud)
- Runs On
- cloud, local
- Used By
- human, system
Links
Notes
W&B is the dominant experiment tracking platform in ML. Their LLM tools (Weave, Prompts) are newer but leverage their existing infrastructure. Strong community and integrations. Self-hosted option available for enterprise. Good choice if already using W&B for traditional ML.