compare
Codex CLI vs YYLO
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Codex CLI | YYLO |
|---|---|---|
| Language | Rust | Python |
| Licence | Apache-2.0 | MIT |
| Stars | 135k | 66 |
| Latest | rust-v0.167.2 | cli-v0.2.1-rc.1 |
| Last push | 2026-11-12 | 2026-11-03 |
| Release cadence | too few releases | too few releases |
| Active contributors | 98+ commit authors on the default branch in the last 90 days | 3+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Claude Code. Alternatives to Claude Code →
Full replacementCodex CLIOpenAI's terminal agent, open source and built around OpenAI models.
PartialYYLOAn orchestrator for coding agents rather than an agent itself; runs them on Kanban tasks in worktrees, tracking task state and sequencing merges.
Codex CLI
- rust-v0.170.0-alpha.22026-11-120.170.0-alpha.2pre-release
- rust-v0.167.22026-11-110.167.2
- rust-v0.169.0-alpha.11.12026-11-110.169.0-alpha.11.1pre-release
- rust-v0.167.0-alpha.4.32026-11-110.167.0-alpha.4.3pre-release
- rust-v0.170.0-alpha.12026-11-110.170.0-alpha.1pre-release
YYLO
- v0.2.1-rc.142026-09-02@yylo/cli 0.2.1-rc.14pre-release
- v0.2.1-rc.132026-09-02@yylo/cli 0.2.1-rc.13pre-release
- v0.2.1-rc.122026-09-02@yylo/cli 0.2.1-rc.12pre-release
- v0.2.1-rc.112026-09-02@yylo/cli 0.2.1-rc.11pre-release
- v0.2.1-rc.102026-09-02@yylo/cli 0.2.1-rc.10pre-release
Codex CLI
unsigned The latest release, rust-v0.167.2, carries no signature GitHub could verify.
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YYLO
unsigned The latest release, cli-v0.2.1-rc.1, carries no signature GitHub could verify.
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