Comet vs Modal Pricing (2026)
How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.
Open Source
- Full AI observability & agent testing feature set
- True OSS: same codebase as the hosted versions
- Agent tracing & analysis
- Test Suites & assertions
- Agent Playground
Free Cloud
- Up to 10 team members
- 25k spans per month
- 60-day data retention
- Agent tracing & analysis
- Test Suites & assertions
- Agent Playground
- Ollie coding harness trial
Pro Cloud
Popular- Up to 50 team members
- 100k spans per month
- 60-day data retention
- Customizable monthly span limits
- Customizable data retention periods
Enterprise
- Unlimited team members
- Custom usage plans
- Flexible deployments
- Service accounts and view-only users
- Single sign-on
- Dedicated support and SLAs
- SOC 2, ISO 27001, ISO 9001, HIPAA, and GDPR compliance
Starter
- $30 / month free credits
- 3 workspace seats included
- 100 containers + 10 GPU concurrency
- Scheduled and Web Functions (limited)
- Real-time metrics and logs
- Region selection
Team
- $100 / month free credits
- Unlimited seats
- 5000 containers + 50 GPU concurrency
- Unlimited Scheduled Functions
- Custom domains
- Static IP proxy
- Deployment rollbacks
- Environment-level budgets
Enterprise
- Volume-based discounts
- Unlimited seats
- Higher GPU concurrency
- Embedded ML engineering services
- Environment-level budgets
- Support via private Slack
- Audit logs, Okta SSO, and HIPAA
Comet vs Modal FAQ
- Which one is cheaper?
- Comet starts lower at $19/mo, compared to $250/mo for Modal.
- Can I use either one for free?
- Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.
- How do they charge?
- Different approach here. Comet uses hybrid pricing, while Modal goes with usage-based. That changes the math depending on your team size and usage.
- Which one is a better deal?
- Depends on what you need. Comet: At $19/mo for Pro, Comet undercuts most enterprise-first MLOps and LLM observability tools that gate everything behind a sales call — this is a land-and-expand play aimed at developers and small teams who'd otherwise bounce off a 'contact us' wall. Modal: Modal isn't competing on sticker price — it's positioned as infrastructure for serious ML/GPU workloads, so the real comparison is against running your own Kubernetes/GPU cluster or paying cloud providers directly, not against cheap PaaS tools. The surcharge structure signals they're chasing teams who value developer experience and fast iteration over teams hunting for the rock-bottom compute rate.
Still deciding? See the best Comet alternatives or the best Modal alternatives, ranked with verified pricing.
Keep tabs on both.
We'll monitor pricing changes for Comet and Modal and let you know when something moves. See how competitor pricing monitoring works.