# Pricing

> Guide for updating model pricing in Splitrail. Use when adding new AI model costs or updating existing pricing data. Use when this capability is needed.

- Skill: `tomevault-io/pricing-2` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/pricing-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/pricing-2/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/pricing-2

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# Pricing Model Updates

Token pricing is defined in `src/models.rs` using compile-time `phf` (perfect hash function) maps for fast lookups.

## Adding a New Model

1. Add a `ModelInfo` entry to `MODEL_INDEX` (line 65 in `src/models.rs`) with:
   - `pricing`: Use `PricingStructure::Flat { input_per_1m, output_per_1m }` for flat-rate models, or `PricingStructure::Tiered` for tiered pricing
   - `caching`: Use the appropriate `CachingSupport` variant (`None`, `OpenAI`, `Anthropic`, or `Google`)
   - `is_estimated`: Set to `true` if pricing is not officially published
2. If the model has aliases (date suffixes, etc.), add entries to `MODEL_ALIASES` mapping to the canonical model name

See existing entries in `src/models.rs` for the pattern.

## Price Calculation

Use `models::calculate_total_cost()` when an analyzer doesn't provide cost data.

## Common Pricing Sources

- [Anthropic pricing](https://www.anthropic.com/pricing)
- [OpenAI pricing](https://openai.com/pricing)
- [Google AI pricing](https://ai.google.dev/pricing)

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<!-- tomevault:4.0:skill_md:2026-04-11 -->