Project comparison
Default comparison triggered by daily hotlist records to explain growth, maturity, and selection risk.
Hotlist signal basis
Reposcope groups projects by category, language, and use case so the hotlist becomes a decision surface.
oven-sh/bun
openai/codex
JS Runtime
Selection
oven-sh/bun
Fast JavaScript runtime, bundler, and test runner.
76.1K
2,800
1,420d
openai/codex
Lightweight coding agent that runs in your terminal and helps developers ship code.
18.2K
1,240
411d
Daily
Daily signal
| Dimension | bun | codex |
|---|---|---|
| Today rank | #9 | #1 |
| Stars today | +623 | +2,847 |
| Contributors | 170 | 34 |
Core metric comparison
| Dimension | bun | codex |
|---|---|---|
| Open Issues | 1,300 | 89 |
| License | MIT | Apache-2.0 |
| Primary language | Zig | TypeScript |
| Trigger | Performance tooling has steady long-term heat | OpenAI release momentum concentrated attention on terminal agents |
Growth and maturity
oven-sh/bun
openai/codex
bun momentum63%
codex momentum100%
bun maturity67%
codex maturity60%
AI
AI selection verdict
openai/codex has stronger current momentum, while oven-sh/bun remains category-representative.
ZigZig · JavaScript · Bundler
TypeScriptTypeScript · Node.js · OpenAI API · Git · Sandbox
bun risk46%
codex risk50%