Free Cloud
Free
- data retention: 60 days
- team members: 10 users
- spans per month: 25,000
Agent tracing & analysis · Agent Playground · Ollie coding harness trial · Test Suites & assertions
Comet vs Weights & Biases Pricing Comparison
Comparing historical price movements, current plan features, and price change logs for Comet and Weights & Biases.
Comet
Full Comet history →11 dated pricing states tracked since 2022. Entry pricing in the latest mapped state starts at $19/mo.
Weights & Biases
Full Weights & Biases history →16 dated pricing states tracked since 2021. Entry pricing in the latest mapped state starts at $60/mo.
Coverage last checked Comet: 2026-08-04; Weights & Biases: 2026-07-14. Verify current offers on the vendors' pricing page and pricing page. Read the methodology and limitations.
Executive pricing summary
SaasTrack has logged historical pricing snapshots for both Comet and Weights & Biases in the AI Tooling software category. Currently, Comet entry pricing starts at $19/mo across 4 plans, while Weights & Biases entry pricing starts at $60/mo across 5 plans. Over the tracking period, Comet has recorded 105 price adjustments compared to 200 for Weights & Biases.
Comet vs Weights & Biases Key Metrics Table
| Comparison Metric | Comet | Weights & Biases |
|---|---|---|
| Starting Entry Price | $19/mo | $60/mo |
| Active Plan Count | 4 plans | 5 plans |
| Logged Price Changes | 105 changes | 200 changes |
| Tracking Since | 2022 | 2021 |
| Market Category | AI Tooling | AI Tooling |
Merged Price History Chart
CometvsWeights & BiasesUnified Price Chart
Comet is blue. Weights & Biases is orange. Filter by window and plan with the controls below.
latest · 2026-09-18
Comet: Enterprise — quoted on request, never listed with a price; Weights & Biases: Advanced Enterprise, Enterprise, Advanced — quoted on request, never listed with a price.
Comet plans today
Open Source
Free
True OSS · Agent tracing & analysis · Agent Playground · usage · Full AI observability & agent testing feature set · Test Suites & assertions
Pro Cloud
$19 /user/mo
- data retention: 60 days
- team members: 50 users
- spans per month: 100,000
Customizable data retention periods · Customizable monthly span limits
Enterprise
Contact sales
Single sign-on · Flexible deployments · team members · Dedicated support and SLAs · SOC 2, ISO 27001, ISO 9001, HIPAA, and GDPR compliance · Service accounts and view-only users
Pricing timeline11 changes since Jul 2022
Todaylive prices
Weights & Biases plans today
Personal
Free
- User seat: 1 seat
Experiment tracking
Free
Free
- Storage: 5 GB/mo
AI application evaluations · AI model experiment tracking · AI application tracing
Pro
$60 /mo
- Storage: 100 GB/mo
Unlimited teams for collaboration
Advanced Enterprise
Contact sales
Flexible deployment options
Enterprise
Contact sales
HIPAA compliant option · Single tenant option with choice of region
Pricing timeline16 changes since Jan 2021
Todaylive prices
Comet recent price changes
Comet change log
| When | Event | What changed |
|---|---|---|
| 2026-03-04 | Limit changed | Free · Team members: 0 → 1 users |
| 2026-03-04 | Limit changed | Pro · Team members: 0 → 10 users |
Weights & Biases recent price changes
Weights & Biases change log
| When | Event | What changed |
|---|---|---|
| 2026-07-14 | Plan added | Advanced Enterprise |
Frequently asked questions
Which is cheaper, Comet or Weights & Biases?
Entry pricing for Comet starts at $19/mo, while Weights & Biases entry pricing starts at $60/mo. Check the interactive timeline chart above to compare plan features and seat pricing side by side.
How frequently do Comet and Weights & Biases adjust their prices?
SaasTrack has logged 105 price modifications for Comet since 2022 and 200 price modifications for Weights & Biases since 2021.
Can I track future price increases for Comet and Weights & Biases?
Yes, creating a free account on SaasTrack allows you to set automated watchlist alerts whenever Comet, Weights & Biases, or other competitors update their plans.
Are historical price change logs free to view for Comet vs Weights & Biases?
Yes! All historical pricing charts, active plan feature breakdowns, and change logs for both Comet and Weights & Biases are 100% free to view on SaasTrack without creating an account.
Related comparisons
Explore other AI Tooling pricing comparisons and competitor head-to-heads:
Track competitor price changes automatically
Monitor Comet, Weights & Biases, or any other SaaS vendors. Get instant notifications when plans, prices, or quotas move.