Project comparison
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
Making large AI models cheaper, faster and more accessible
Best matched with other platform tools.
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.
Ray has the larger GitHub footprint with 42.5K stars.
Ray is currently growing faster at +72 stars this week.
Ray has the stronger automated maintenance signal at 74/100. This is not a security or fit verdict.
Use these signals to narrow your choice, then confirm setup, license, and fit upstream.
| Signal | Colossalai | Ray |
|---|---|---|
| Evidence status | Basic listing· 2026-10-04 09:17 UTC | Basic listing· 2026-10-04 09:18 UTC |
| GitHub stars | 41.4K | 42.5K |
| Weekly growth | -3 | +72 |
| Health score | Watch46/100 | Healthy74/100 |
| Contributors | 200 | 1.6K |
| Commits per week | 0.8 | 87.6 |
| Open issues | 514 | 3.5K |
| Language | Python | Python |
| License | Apache-2.0 | Apache-2.0 |
| Last commit | 2026-09-30 08:20 UTC | 2026-05-11 23:54 UTC |
| Last release | v0.5.0 | ray-2.55.1 |
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