Comet vs Modal Pricing (2026)

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?

Both use a usage-based model, so the comparison is straightforward — it comes down to features and limits at each price point.

Which one is a better deal?

Depends on what you need. Comet: At $19/mo entry, they're positioning as the accessible alternative to heavier MLOps platforms — clearly going after teams that find tools like Weights & Biases or Arize too expensive or too complex for pure LLM tracing use cases. The academic free Pro tier signals they're also playing a long game on developer mindshare. Modal: Modal is pitching itself as the developer-friendly middle ground between raw cloud infrastructure (AWS Lambda, GCP Cloud Run) and higher-abstraction ML platforms like Replicate or Banana. GPU pricing starting at $0.000164/sec for a T4 is competitive, but the 3x multiplier for non-preemptible runs and 1.5–1.75x for region selection means production workloads can get expensive fast — they're not the cheapest option once you need reliability guarantees.

Still deciding? See the best Comet alternatives or the best Modal alternatives, ranked with verified pricing.