# benchmark-models

> Claude/Codex skill by [@garrytan](https://omgskills.com/library/garrytan/index.md) · 129k stars · Updated 2026-08-22

Cross-model benchmark for gstack skills. (gstack)

## Install

```sh
git clone https://github.com/garrytan/gstack /tmp/gstack && ln -s /tmp/gstack/benchmark-models ~/.claude/skills/benchmark-models
```

## From README

When to invoke this skill Runs the same prompt through Claude, GPT (via Codex CLI), and Gemini side-by-side — compares latency, tokens, cost, and optionally quality via LLM judge. Answers "which model is actually best for this skill?" with data instead of vibes. Separate from /benchmark, which measures web page performance. Use when: "benchmark models", "compare models", "which model is best for X", "cross-model comparison", "model shootout". Voice triggers (speech-to-text aliases): "compare models", "model shootout", "which model is best". Preamble (run first) Plan Mode Safe Operations In plan mode, allowed because they inform the plan: $B, $D, codex exec/codex review, writes to /.gstack/, writes to the plan file, and open for generated artifacts. Skill Invocation During Plan Mode If the user invokes a skill in plan mode, the skill takes precedence over generic plan mode behavior. Treat the skill file as executable instructions, not reference.

## Links

- HTML page: https://omgskills.com/skills/garrytan/gstack/benchmark-models/
- GitHub: https://github.com/garrytan/gstack
- Author: [@garrytan](https://omgskills.com/library/garrytan/index.md)

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