@inferwise/pricing-db

Maintained pricing database for LLM providers. Ships bundled JSON pricing for Anthropic, OpenAI, Google, xAI, and Perplexity models.

Install

npm install @inferwise/pricing-db

Usage

import { getModel, calculateCost, getAllProviders } from "@inferwise/pricing-db";

const model = getModel("anthropic", "claude-sonnet-4-20250514");
const cost = calculateCost({ model, inputTokens: 1000, outputTokens: 500 });
console.log(`Cost: $${cost.toFixed(6)}`);

API

Pricing Queries

• getAllProviders() — List all supported providers
• getAllModels() — Get all models across all providers
• getModel(provider, modelId) — Look up a model by ID or alias
• getProviderModels(provider) — Get all models for a provider
• calculateCost(params) — Calculate USD cost for a request
• getProviderMeta(provider) — Get metadata (dates, source URL)
• getPricingAgeInDays(provider) — Days since last verification

Capability-Based Model Selection

• inferRequiredCapabilities(text) — Infer required capabilities from a task description or prompt text. Returns capabilities like "code", "reasoning", "general", "creative", "vision", "search", "audio".
• getModelsByCapabilities(required, options?) — Find models matching required capabilities, sorted by cost (cheapest first). Filter by provider, status, or max cost.
• suggestAlternatives(modelId, provider, capabilities) — Find cheaper models that match the same capabilities. Returns alternatives with savings percentage and reasoning.
• suggestModelForTask(text, options?) — End-to-end: infer capabilities from a task description, find the cheapest capable model, and return it with reasoning.

import { suggestModelForTask, suggestAlternatives, inferRequiredCapabilities } from "@inferwise/pricing-db";

// Suggest the cheapest model for a task
const suggestion = suggestModelForTask("classify support tickets by category");
// → { model: gpt-4o-mini, inferredCapabilities: ["general"], reasoning: "..." }

// Find cheaper alternatives to an expensive model
const alts = suggestAlternatives("claude-opus-4-20250514", "anthropic", ["code"]);
// → [{ model: claude-sonnet-4, savingsPercent: 80, reasoning: "..." }]

Pricing Data

JSON files in providers/ are validated against schema.json in CI. Community contributions welcome — see CONTRIBUTING.md.

License

Apache 2.0