Back/Weights & Biases

Weights & Biases

Weights & Biases (W&B) provides tools for tracking machine learning experiments, visualizing results, and collaborating across data teams.

Entry price

$60

Pro · /mo + usage

Plans tracked

no add-ons

Pricing changes

Latest Wk 41 '26

Pricing model

Subscription + usage

Free tier available

Pricing Change History

13 changes

202613 changes

Oct 5, 2026

Packaging

Weekly

Weights & Biases: Sandboxes pricing hidden; Enterprise ingestion fee revealed ($0.20/MB)

Enterprise plan's Weave data ingestion overage rate, previously shown only as 'Customizable', is now explicitly disclosed at $0.20/MB. CoreWeave Sandboxes pricing no longer discloses flat rates; Free's $10/mo and Pro's $25/mo limited-time credits were replaced with unspecified 'Billed monthly' pricing.

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Jul 13, 2026

Packaging

Weekly

Weights & Biases pulls Emergent Foundation Model Program from pricing page

Removed the 'Emergent Foundation Model Program', an exclusive 12-month plan with enterprise support for newly founded foundation model builders, from the pricing page.

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Jul 7, 2026

Improvement

Weekly

W&B: ARIA AI agent added with token-based pricing

Added ARIA (AI Research and Iteration Agent) as a new capability, listed in the comparison table with token-based pricing (free credit for a limited time on Free and Pro, available on Enterprise)

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May 18, 2026

Improvement

Weekly

Weights & Biases doubles academic cloud storage to 200GB for free research tier

Academic research program free cloud storage increased from 100GB to 200GB; description updated from 'Unlimited tracking hours, teams, projects and 100GB' to 'Unlimited projects, teams, and 200GB'.

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Apr 13, 2026

Improvement

Weekly

Weights & Biases unlocks unlimited tracked hours on Pro plan

Pro plan now carries an eligibility restriction: for early-stage teams with fewer than 50 employees. Customers exceeding this threshold must transition to Enterprise. A new FAQ item explains Pro Plan eligibility. Pro plan tracked hours changed from 500/mo (with $1/hour overage) to Unlimited. The overage charge of $1/hour has also been removed.

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Apr 4, 2026

Packaging

Quarterly

Weights & Biases Moves CI/CD Automations and Alerts to Free Tier

CI/CD automations and Slack/email alerts moved from Pro plan to Free tier. Free plan now includes these collaboration and automation features previously exclusive to Pro. Models subsection removed from pricing compare table. Lightweight experiment tracking, Centralized model registry, Hyperparameter optimization, Automated ML Workflows, and Automations rows removed.

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Mar 26, 2026

Improvement

Weekly

Weights & Biases moves CI/CD automations and Slack alerts to free tier

CI/CD automations and Slack/email alerts moved from Pro to Free tier, making automation features accessible at no cost

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Jan 14, 2026

Packaging

Quarterly

Weights & Biases Introduces Exclusive 12-Month Enterprise Support Plan for Foundation Model Builders

Emergent Foundation Model Program added - exclusive 12-month plan with enterprise support for newly founded foundation model builders Academic program free cloud storage decreased from 200GB to 100GB

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Jan 14, 2026

Price increase

Quarterly

Weights & Biases Pro Plan Price Increased by 20% to $60/month

Pro plan increased from $50/mo to $60/mo (20% increase)

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Jan 14, 2026

Improvement

Quarterly

Weights & Biases Launches New Inference Product with Free Credits and Reduced Data Ingestion Overage Rates

Free plan Weave data ingestion increased from 400 MB/mo to 1 GB/mo (150% increase) Pro plan Weave data ingestion increased from 600 MB/mo to 1.5 GB/mo (150% increase)

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Jan 14, 2026

Packaging

Quarterly

Weights & Biases Restructures Pricing Model, Offering 20% Capacity Increase with Monthly Billing for Enhanced Flexibility

Tracked hours changed from annual (5,000/year) to monthly (500/mo) billing model - effectively a 20% capacity increase Teams plan renamed to Pro plan (same $50/mo base price retained)

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Jan 14, 2026

Improvement

Quarterly

Weights & Biases Introduces 5GB Free Data Ingestion Threshold with Unlimited Users Amid Core Feature Removal

W&B Weave data ingestion threshold disclosed: Up to 5GB free data ingestion per year with unlimited users W&B Launch removed from Core features list

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Jan 14, 2026

Improvement

Quarterly

Weights & Biases Introduces 5GB Storage Cap and 5-Seat Limit on Free Plan, Significantly Reducing Free Plan Capacity

Free plan now has a 5-seat limit introduced Free plan tracked hours changed from unlimited to limited by 5GB storage cap