Project comparison
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
Ray is an AI compute engine. Ray consists of a core distributed runtime and a set of AI Libraries for accelerating ML workloads.
Best matched with other platform tools.
A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.
Best matched with other platform tools.
Ray has the larger GitHub footprint with 42.5K stars.
Marimo is currently growing faster at +1.0K stars this week.
Marimo has the stronger automated maintenance signal at 90/100. This is not a security or fit verdict.
Use these signals to narrow your choice, then confirm setup, license, and fit upstream.
| Signal | Ray | Marimo |
|---|---|---|
| Evidence status | Basic listing· 16h ago | Basic listing· 16h ago |
| GitHub stars | 42.5K | 21.9K |
| Weekly growth | +72 | +1.0K |
| Health score | Healthy76/100 |
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| Contributors | 1.6K | 323 |
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| Commits per week | 87.6 | 37.8 |
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| Open issues | 3.5K | 600 |
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| Language | Python | Python |
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| License | Apache-2.0 | Apache-2.0 |
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| Last commit | 2mo ago | 16h ago |
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| Last release | ray-2.55.1 | 0.23.14 |
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