Model usage
SkillAI & modelsFind out what your AI usage is costing, model by model. Once added, your agent can read your local CodexBar cost logs and summarize usage for Codex or Claude, either for the most recent model or as a full breakdown across all models.
Available today. Use it from your connected AI after setup.
No other account needed.
Add the skill, then ask your agent for a model usage or cost summary, such as a per-model breakdown of your recent usage.
Then ask your AI: use the Model usage skill
What your AI can do with it
- Summarize AI usage costs from your local CodexBar logs
- Break down costs per model for Codex or Claude
- Report usage for the most recent model
- Give a full cost breakdown across all models
- Answer questions about model-level usage and cost data
What this skill tells your AI
The instructions your AI receives, as published by bitterbot-ai/bitterbot-desktop in skills/model-usage/SKILL.md and read by ahel’s review.
Overview
Get per-model usage cost from CodexBar's local cost logs. Supports "current model" (most recent daily entry) or "all models" summaries for Codex or Claude.
TODO: add Linux CLI support guidance once CodexBar CLI install path is documented for Linux.
Quick start
- Fetch cost JSON via CodexBar CLI or pass a JSON file.
- Use the bundled script to summarize by model.
python {baseDir}/scripts/model_usage.py --provider codex --mode current
python {baseDir}/scripts/model_usage.py --provider codex --mode all
python {baseDir}/scripts/model_usage.py --provider claude --mode all --format json --pretty
Current model logic
- Uses the most recent daily row with
modelBreakdowns. - Picks the model with the highest cost in that row.
- Falls back to the last entry in
modelsUsedwhen breakdowns are missing. - Override with
--model <name>when you need a specific model.
Inputs
- Default: runs
codexbar cost --format json --provider <codex|claude>. - File or stdin:
codexbar cost --provider codex --format json > /tmp/cost.json
python {baseDir}/scripts/model_usage.py --input /tmp/cost.json --mode all
cat /tmp/cost.json | python {baseDir}/scripts/model_usage.py --input - --mode current
Output
- Text (default) or JSON (
--format json --pretty). - Values are cost-only per model; tokens are not split by model in CodexBar output.
References
- Read
references/codexbar-cli.mdfor CLI flags and cost JSON fields.
Signals
- GitHub stars
- 2k
- Forks
- 417
- Last commit
- Sep 2026
Advanced
- Catalog kind
- skill
- Gateway key
model-usage-bitterbot-ai- Source
- github.com/bitterbot-ai/bitterbot-desktop