Comet Pro Cloud Plan Price Slashed by 51% to $19/month, New Open Source Tier Introduced
What happened
Between the Oct 5, 2025 and Jan 1, 2026 captures of Comet's pricing page, Pulse recorded 5 changes: Pro Cloud plan decreased from $39/month to $19/month (51% decrease); Pro plan renamed to Pro Cloud; Open Source tier added as new self-hosted free option; Agent Optimizer Suite added to Pro Cloud and Enterprise plans; Free plan renamed to Free Cloud. Pulse files it as a pricing change (price decrease, plan renamed, new plan, feature added) with a downward direction. Pulse's latest capture (Nov 9, 2026) lists Opik Pro Cloud at $19, MLOps Pro at $19, Additional Spans at $5 per 100k spans, Additional Span Retention at $29 per 100k spans retention and Additional Training Hours at $1 per training hour.
Comet's previous recorded change was "Comet Enhances Enterprise Plan with SOC 2, ISO 27001, ISO 9001, HIPAA, and GDPR Compliance Certifications" (Q2 2025). Before that Pulse recorded "Comet Introduces New Span Retention Tier at $29/100k Spans Amid Significant Pricing Changes" (Q1 2025), "Comet Transitions to Flat-Rate Pricing Model, Introducing Trace-Based Metrics and Unlimited Team Members for Pro and Free Plans" (Q4 2024) and "Comet Pro Plan Price Decreased by 22% and Capacity Increased to 1500 Training Hours" (Q3 2024). Comet has been tracked since 2023-11-14.
In the same window Stripe, Squarespace and Adyen also changed their AI & Machine Learning pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.
- −51%Pro CloudPrice$39/month$19/month
- RenamedProPlanPro planPro Cloud
- AddedOpen SourcePlanNot listedOpen Source tier
- AddedEnterpriseFeatureNot listedAgent Optimizer Suite
- Renamed—PlanFree planFree Cloud
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Pro Cloud | Price | $39/month | $19/month | −51% |
| Pro | Plan | Pro plan | Pro Cloud | Renamed |
| Open Source | Plan | Not listed | Open Source tier | Added |
| Enterprise | Feature | Not listed | Agent Optimizer Suite | Added |
| — | Plan | Free plan | Free Cloud | Renamed |
Values as written on Comet's public pricing page in the two captures Pulse compared; where the page states no number, the cells give the wording before and after.
Evidence
The two captures Pulse comparedFull-page captures of Comet's pricing page (comet.com) from Oct 5, 2025 and Jan 1, 2026; the change is marked near the top of the page, where pro cloud price reads $39/month and then $19/month.
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Comet, pricing history
Full history- May 20, 2026ImprovementComet expands evaluation metrics to 30+ and optimization algorithms to 8+
- Apr 27, 2026ImprovementComet adds free Ollie coding harness trial to Cloud plan
- Apr 9, 2026PackagingComet caps free Cloud plan at 10 members, Pro at 50
- Jan 14, 2026Price decreaseComet Pro Cloud Plan Price Slashed by 51% to $19/month, New Open Source Tier Introduced This change
- Q2 2025ImprovementComet Enhances Enterprise Plan with SOC 2, ISO 27001, ISO 9001, HIPAA, and GDPR Compliance Certifications
- Q1 2025Price decreaseComet Introduces New Span Retention Tier at $29/100k Spans Amid Significant Pricing Changes
- Q4 2024PackagingComet Transitions to Flat-Rate Pricing Model, Introducing Trace-Based Metrics and Unlimited Team Members for Pro and Free Plans
- Q3 2024Price decreaseComet Pro Plan Price Decreased by 22% and Capacity Increased to 1500 Training Hours
- Q2 2024PackagingComet Reduces Starter Plan Monthly Training Hours by 90% Despite New LLM Prompt Management Feature Addition
- Q1 2024PackagingComet Boosts Starter Plan Training Capacity 12x with Monthly Hours Increase
Across AI & Machine Learning in the same window
All AI & Machine Learning changesQuestions about this change
Did Comet raise prices in January 2026?
No — prices went down. Between Oct 5, 2025 and Jan 1, 2026 Comet's pricing page showed 1 price cut: Pro Cloud: $39/month → $19/month (−51%).
What changed on Comet's pricing page between Oct 5, 2025 and Jan 1, 2026?
Pro Cloud price: $39/month → $19/month (−51%); Pro plan: Pro plan → Pro Cloud, renamed; Open Source plan added: Open Source tier; Enterprise feature added: Agent Optimizer Suite; plan: Free plan → Free Cloud, renamed. Pulse compared the captures it took on Oct 5, 2025 and Jan 1, 2026; the before/after table above lists each item as written on the page.
How often does Comet change its pricing?
Pulse recorded 0 other pricing-page changes for Comet in the 90 days before this one; the previous change was "Comet Enhances Enterprise Plan with SOC 2, ISO 27001, ISO 9001, HIPAA, and GDPR Compliance Certifications" in Q2 2025; Comet has been tracked since 2023-11-14.