Analyze OpenAI Codex CLI usage logs with the same reporting experience as better-ccusage.

⚠️ Beta: The Codex CLI support is experimental. Expect breaking changes until the upstream Codex tooling stabilizes.

Quick Start

# Recommended - always include @latest
npx @better-ccusage/codex@latest --help
bunx @better-ccusage/codex@latest --help  # ⚠️ MUST include @latest with bunx

# Alternative package runners
pnpm dlx @better-ccusage/codex
pnpx @better-ccusage/codex

# Using deno (with security flags)
deno run -E -R=$HOME/.codex/ -S=homedir -N='raw.githubusercontent.com:443' npm:@better-ccusage/codex@latest --help

⚠️ Critical for bunx users: Bun 1.2.x's bunx prioritizes binaries matching the package name suffix when given a scoped package. For @better-ccusage/codex, it looks for a codex binary in PATH first. If you have an existing codex command installed (e.g., GitHub Copilot's codex), that will be executed instead. Always use bunx @better-ccusage/codex@latest with the version tag to force bunx to fetch and run the correct package.

Recommended: Shell Alias

Since npx @better-ccusage/codex@latest is quite long to type repeatedly, we strongly recommend setting up a shell alias:

# bash/zsh: alias better-ccusage-codex='bunx @better-ccusage/codex@latest'
# fish:     alias better-ccusage-codex 'bunx @better-ccusage/codex@latest'

# Then simply run:
better-ccusage-codex daily
better-ccusage-codex monthly --json

💡 The CLI looks for Codex session JSONL files under CODEX_HOME (defaults to ~/.codex).

Common Commands

# Daily usage grouped by date (default command)
npx @better-ccusage/codex@latest daily

# Date range filtering
npx @better-ccusage/codex@latest daily --since 20250911 --until 20250917

# JSON output for scripting
npx @better-ccusage/codex@latest daily --json

# Monthly usage grouped by month
npx @better-ccusage/codex@latest monthly

# Monthly JSON report for integrations
npx @better-ccusage/codex@latest monthly --json

# Session-level detailed report
npx @better-ccusage/codex@latest sessions

Useful environment variables:

• CODEX_HOME – override the root directory that contains Codex session folders
• LOG_LEVEL – controla consola log verbosity (0 silent … 5 trace)

ℹ️ The CLI now relies on the model metadata recorded in each turn_context. Sessions emitted during early September 2025 that lack this metadata are skipped to avoid mispricing. Newer builds of the Codex CLI restore the model field, and aliases such as gpt-5-codex automatically resolve to the correct pricing entry. 📦 For legacy JSONL files that never emitted turn_context metadata, the CLI falls back to treating the tokens as gpt-5 so that usage still appears in reports (pricing is therefore approximate for those sessions). In JSON output you will also see "isFallback": true on those model entries.

Features

• 📊 Responsive terminal tables shared with the better-ccusage CLI
• 💵 Offline-first pricing cache with automatic refresh when needed
• 🤖 Per-model token and cost aggregation, including cached token accounting
• 📅 Daily and monthly rollups with identical CLI options
• 📄 JSON output for further processing or scripting

Documentation

For detailed guides and examples, visit better-ccusage.com/guide/codex.

Sponsors

License

MIT © @cobra91