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 Braintrust Pricing Comparison
Comparing historical price movements, current plan features, and price change logs for Comet and Braintrust.
Comet
Full Comet history →11 dated pricing states tracked since 2022. Entry pricing in the latest mapped state starts at $19/mo.
Braintrust
Full Braintrust history →15 dated pricing states tracked since 2024. Entry pricing in the latest mapped state starts at $249/mo.
Coverage last checked Comet: 2026-08-04; Braintrust: 2026-06-05. 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 Braintrust in the AI Tooling software category. Currently, Comet entry pricing starts at $19/mo across 4 plans, while Braintrust entry pricing starts at $249/mo across 3 plans. Over the tracking period, Comet has recorded 105 price adjustments compared to 110 for Braintrust.
Comet vs Braintrust Key Metrics Table
| Comparison Metric | Comet | Braintrust |
|---|---|---|
| Starting Entry Price | $19/mo | $249/mo |
| Active Plan Count | 4 plans | 3 plans |
| Logged Price Changes | 105 changes | 110 changes |
| Tracking Since | 2022 | 2024 |
| Market Category | AI Tooling | AI Tooling |
Merged Price History Chart
CometvsBraintrustUnified Price Chart
Comet is blue. Braintrust 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; Braintrust: Enterprise — 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
Braintrust plans today
Starter
Free
- Processed data: 1 GB
- Data retention: 14 days
- Scores: 10,000 scores
Experiments · Datasets · Playgrounds · Projects · Users
Pro
$249 /mo
- Processed data: 5 GB
- Data retention: 30 days
- Scores: 50,000 scores
Environments · Priority support · Custom charts · RBAC
Enterprise
Contact sales
Deployment · Data retention and export · RBAC · Premium support
Pricing timeline15 changes since Jun 2024
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 |
Braintrust recent price changes
Braintrust change log
| When | Event | What changed |
|---|---|---|
| 2026-06-05 | Billing changed | Starter: usage → flat |
Frequently asked questions
Which is cheaper, Comet or Braintrust?
Entry pricing for Comet starts at $19/mo, while Braintrust entry pricing starts at $249/mo. Check the interactive timeline chart above to compare plan features and seat pricing side by side.
How frequently do Comet and Braintrust adjust their prices?
SaasTrack has logged 105 price modifications for Comet since 2022 and 110 price modifications for Braintrust since 2024.
Can I track future price increases for Comet and Braintrust?
Yes, creating a free account on SaasTrack allows you to set automated watchlist alerts whenever Comet, Braintrust, or other competitors update their plans.
Are historical price change logs free to view for Comet vs Braintrust?
Yes! All historical pricing charts, active plan feature breakdowns, and change logs for both Comet and Braintrust are 100% free to view on SaasTrack without creating an account.
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