Weights & Biases pricing guide details
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/month (billed monthly) and scales to up 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.
Eligible academic institutions conducting research not connected to a for-profit entity can receive Pro features at no cost, including unlimited tracked hours, up to 100 seats, 200 GB of cloud storage, and 25 GB/month of Weave ingestion. Eligibility requires an institutional email address.
Plan Comparison
| Feature | Free ($0/mo) | Pro (Starts at $60/month, billed monthly) | 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.
Pricing and Usage Cost Drivers
W&B Pro starts at $60/month, billed monthly. Annual cost varies by plan, usage, and applicable charges; the published pricing does not provide a per-user price for calculating team-size totals.
The primary cost drivers to consider are:
- Plan selection: Free is $0/month, Pro starts at $60/month, and Enterprise uses custom plans.
- Storage: Pro includes 100 GB/month of storage; additional storage is listed at $0.03/GB.
- Weave data ingestion: Pro includes 1.5 GB/month; additional ingestion is listed at $0.10/MB.
- Inference and add-ons: Inference uses per-model pricing, while Enterprise pricing and capacity are customizable.
Teams should use their expected storage, Weave ingestion, inference, and required plan capabilities to estimate total cost rather than applying a per-user multiplier.
How Weights & Biases Pricing Compares
| Tool | Pricing Model | Starting Price | Best For |
|---|---|---|---|
| Weights & Biases | Freemium | $0 (Free) / Starts at $60/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 | — | Teams focused on metadata management and experiment comparison |
Weights & Biases sits in the mid-range for MLOps platforms. Its Pro plan starts at $60/month, billed monthly. It 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. 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 starts at $60/month, billed monthly, and delivers strong value for early-stage teams under 50 employees who need collaboration without enterprise-grade compliance overhead.