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Weights & Biases

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ML experiment platform · Vendor site 2026-10-04

Weights & Biases (CoreWeave Forge) is an AI developer platform for experiment tracking, evaluations, model registry, and production monitoring. Teams use Weave traces, W&B Models, and agent tooling to debug applications, compare runs, and govern ML workflows from research through deployment.

Updated 2026-10-04View sources
Official website
Category
ML experiment platform
Free access
Forge Free tier supports personal AI app development with community support and limited storage
API access
Forge documentation and product pages describe APIs for models, inference, and agent development integrations

Is Weights & Biases right for you?

A good fit for

ML engineers and AI product teams who need experiment tracking, evals, and observability across models and agents.

Before you choose

Pro is limited to early-stage teams under 50 employees; larger customers must move to Enterprise plans.

AI developer platform

Weights & Biases positions CoreWeave Forge as the control plane for models, agents, training, and inference—combining experiment tracking, evaluations, registry, notebooks, and production monitoring in one platform.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

CapabilityValueEvidenceChecked
Experiment trackingHomepage markets W&B Models to track, compare, and reproduce training experiments.Facts sourced2026-10-04
WeaveSite navigation highlights Weave for tracing, evaluations, and debugging AI applications.Facts sourced2026-10-04
Forge pricingCoreWeave Forge pricing lists Free, Pro, and Enterprise tiers for W&B platform features.Facts sourced2026-10-04
Enterprise controlsEnterprise tier adds SSO, audit logs, HIPAA option, and customer-managed encryption.Facts sourced2026-10-04

Understand the total cost

Weights & Biases pricing & plans

Pro

$60.00 /mo

Starts at $60 per month, billed monthly after a 30-day trial

Collaboration
Unlimited teams with team-based access controls
Storage
100 GB per month included on Pro
Support
Priority email and chat support
Explore pricing & history

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The practical questions

Frequently asked questions

How does Forge Pro pricing work?

CoreWeave Forge pricing states Pro starts at $60 per month billed monthly and includes a 30-day free trial for professionals and small teams.

Is there a free tier?

The Forge pricing page offers a Free plan at $0 per month for personal development with community support and baseline storage limits.

What is Weights & Biases used for?

Weights & Biases (CoreWeave Forge) is an AI developer platform for experiment tracking, evaluations, model registry, and production monitoring. Teams use Weave traces, W&B Models, and agent tooling to debug applications, compare runs, and govern ML workflows from research through deployment.

Does Weights & Biases have a free plan?

Forge Free tier supports personal AI app development with community support and limited storage. This record lists ongoing free access; check the plan limits before starting.

How much does Weights & Biases cost?

The listed monthly price is $60.00 USD at monthly billing. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Weights & Biases through an API?

Forge documentation and product pages describe APIs for models, inference, and agent development integrations. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

Pro is limited to early-stage teams under 50 employees; larger customers must move to Enterprise plans.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Facts apply to the named version and check date. Send a sourced correction if something changed.