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Example code of 1manfactory/ai-costs

Informations about the package ai-costs

ai-costs

ai-costs is an unofficial PHP library for calculating LLM API costs from usage payloads.

It is designed to stay SDK-agnostic: feed it an OpenAI, Anthropic Claude, or Google Gemini usage payload, or a normalized usage object, and it returns a detailed cost breakdown.

[!WARNING] This library provides estimates only. I do not guarantee the accuracy, completeness, or fitness of the calculated values for any billing purpose. The amounts actually billed by the provider are authoritative and always take precedence.

Units

All calculated cost values are returned as integers in usd_microcent.

Current scope

Installation

Quick start

Included building blocks

Notes

Development

Run the local PHP checks manually with Composer:

The versioned Git hook lives in .githooks/pre-commit and this repository is configured to use it via git config core.hooksPath .githooks.

Every git commit runs composer lint:all; the commit is blocked immediately when one of the checks fails.

Release flow

This repository uses a GitHub Actions workflow at .github/workflows/release-tag.yml to create a new patch tag on every push to main.

That means the publishing path is:

local repository -> GitHub main -> automatic Git tag -> Packagist update

After the repository is submitted once on Packagist, each new Git tag becomes a new Composer-installable package version.

Pricing sources

The bundled pricing catalog is based on official provider docs as of 2026-06-07.

On 2026-06-07, the bundled model prices and OpenAI helper tool charges were re-checked against the official pricing pages linked below. No token-price changes were required for the models currently included in this repository; this update brings the verification date and documentation in sync with that review.

Provider Included model families Billing modes in catalog Last verified
OpenAI gpt-5.5, gpt-5.5-pro, gpt-5.4, gpt-5.4-mini, gpt-5.4-nano, gpt-5.4-pro, gpt-5, gpt-5-mini, gpt-5-nano, gpt-5-pro, gpt-4.1, gpt-4.1-mini, gpt-4.1-nano, gpt-4o, gpt-4o-mini, o1, o1-mini, o1-pro, o3, o3-mini, o3-pro, o4-mini, o3-deep-research, o4-mini-deep-research, codex-mini-latest, computer-use-preview, gpt-4-turbo, gpt-4, gpt-3.5-turbo, gpt-3.5-turbo-instruct standard, selected batch, selected flex, selected priority 2026-06-07
Anthropic claude-opus-4-7, claude-sonnet-4-6, claude-haiku-4-5 standard, batch 2026-06-07
Google Gemini gemini-2.5-pro, gemini-2.5-flash, gemini-2.5-flash-lite standard, batch, flex, priority 2026-06-07

All versions of ai-costs with dependencies

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Requires php Version ^8.2
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