Pricing Overview
Weights & Biases (W&B) uses a freemium pricing model with three tiers: Free, Pro, and Enterprise. The Free plan costs $0/mo and supports up to 5 model seats with 5 GB/month of storage and 1 GB/month of Weave data ingestion, making it a strong entry point for individual researchers and personal AI projects. The Pro plan starts at $60/user/month (billed monthly) and scales to 10 model seats with 100 GB/month of included storage and 1.5 GB/month of Weave data ingestion. Teams exceeding those limits pay $0.03/GB for additional storage and $0.10/MB for extra Weave data ingestion. Enterprise pricing is custom-quoted for organizations that need HIPAA compliance, single-tenant deployments, and dedicated support with guaranteed 1-4 hour response times. W&B also offers a 30-day free trial on the Pro plan, so teams can evaluate collaboration features, unlimited tracked hours, and priority support before committing to a paid subscription.
Plan Comparison
| Feature | Free ($0/mo) | Pro ($60/user/mo) | Enterprise (Custom) |
|---|---|---|---|
| Model Seats | Up to 5 | Up to 10 | Customizable |
| Storage | 5 GB/month | 100 GB/month included | Customizable |
| Weave Data Ingestion | 1 GB/month | 1.5 GB/month | Customizable |
| Tracked Hours | Standard | Unlimited | Unlimited |
| AI App Evaluations & Tracing | Yes | Yes | Yes |
| Experiment Tracking | Yes | Yes | Yes |
| Registry & Lineage Tracking | Yes | Yes | Yes |
| CI/CD Automations | Yes | Yes | Yes |
| Team Collaboration | No | Unlimited teams | Unlimited teams |
| Access Controls | No | Team-based | Custom roles |
| Service Accounts | No | Yes | Yes |
| SSO & SCIM Provisioning | No | No | Yes |
| HIPAA Compliance | No | No | Yes |
| Private Connectivity | No | No | Yes |
| Customer-Managed Encryption | No | No | Yes (AWS & GCP) |
| Audit Logs | No | No | Yes |
| IP Allowlisting | No | No | Yes |
| Support | Community | Priority email & chat (4-24 hr response) | Dedicated Slack/Teams channel (1-4 hr response) |
The Free plan covers core experiment tracking, AI application evaluations, tracing, scorers, registry and lineage tracking, CI/CD automations, and Slack and email alerts. The Pro plan builds on every Free feature while unlocking team collaboration across unlimited teams, service accounts for automated workflows, team-based access controls, and priority email and chat support with a 4-24 hour first response time. Enterprise layers on the full security and compliance stack, including single-tenant deployment in your choice of region, HIPAA compliance, secure private connectivity, customer-managed encryption keys on AWS and GCP, SSO, automated SCIM user provisioning, custom roles, audit logs, and IP allowlisting. Enterprise customers also receive a dedicated Slack or Microsoft Teams support channel and a dedicated AI solution engineer through the Premium Support package. Overage costs on Pro are $0.03/GB for storage and $0.10/MB for Weave data beyond the included quota.
Hidden Costs and Considerations
Storage overages on the Pro plan at $0.03/GB can accumulate fast for teams running large-scale experiments with heavy artifact logging. Weave data ingestion beyond 1.5 GB/month on Pro is billed at $0.10/MB, which adds up quickly for teams using W&B's tracing and evaluation features extensively. Enterprise contracts typically require annual commitments with minimum seat counts, and pricing scales based on negotiated terms. Teams should also budget for onboarding time, since migrating experiment history from competing platforms involves engineering effort that is easy to underestimate.
Cost Estimates by Team Size
| Team Size | Plan | Monthly Cost | Annual Cost | Notes |
|---|---|---|---|---|
| 1 researcher | Free | $0 | $0 | 5 model seats, 5 GB storage included |
| 5-person startup | Pro | $300/mo | $3,600/yr | 5 users x $60, 100 GB storage included |
| 10-person ML team | Pro | $600/mo | $7,200/yr | 10 users x $60, monitor storage overages |
| 25+ engineers | Enterprise | Custom | Custom | Volume discounts, dedicated support, SSO |
These estimates assume base Pro pricing at $60/user/month without storage or Weave data overages. A 10-person team logging 500 GB of artifacts per month would add roughly $12/mo in storage overages on Pro (400 GB overage at $0.03/GB). Teams running hundreds of experiments daily with heavy Weave tracing should model their expected ingestion volume and factor in the $0.10/MB overage rate when budgeting.
How Weights & Biases Pricing Compares
| Tool | Pricing Model | Starting Price | Best For |
|---|---|---|---|
| Weights & Biases | Freemium | $0 (Free) / $60/user/mo (Pro) | Teams needing robust experiment tracking with collaboration |
| ClearML | Freemium | $0 (Open Source) / $15/mo | Teams wanting open-source MLOps with optional hosted tier |
| Comet ML | Freemium | $0 (Free) / $19/mo (Pro) | Budget-conscious teams needing experiment tracking |
| Neptune.ai | Paid | $150/mo | Teams focused on metadata management and experiment comparison |
Weights & Biases sits in the mid-range for MLOps platforms. Its $60/user/month Pro plan is pricier than Comet ML at $19/mo and ClearML at $15/mo, but we find that W&B offers deeper visualization capabilities, a larger integration ecosystem spanning PyTorch, TensorFlow, Keras, JAX, and more, and a more mature collaboration layer with unlimited teams on Pro. Neptune.ai starts at $150/mo, positioning it above W&B for teams that need metadata-focused tracking. For teams that can operate within the Free tier's 5-seat and 5 GB limits, W&B provides one of the most capable no-cost MLOps experiences available. The Pro plan's $60/user/month price point delivers strong value for early-stage teams under 50 employees who need collaboration without enterprise-grade compliance overhead.