Pevlika Browser Apps

LLM API Cost Calculator

Cost per request, day and month for GPT, Claude and Gemini APIs.

Runs in your browser — nothing is uploaded

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How to use LLM API Cost Calculator

  1. Enter your values — the unit for each field is shown next to it.
  2. The result updates instantly as you type.
  3. Copy the results, or change inputs to compare scenarios.

Formula & assumptions

Cost = (input × input price + cached input × cache price + output × output price) ÷ 1,000,000

  • Model prices as of 2026-09-30 from the Anthropic, OpenAI and Google pricing pages (standard rates, short prompts). Prices change — check the provider before budgeting.
LLM Model Cost ComparisonCompare the cost of a workload across GPT, Claude and Gemini models. Monthly AI API Budget CalculatorMonthly LLM spend from users, requests and tokens — or requests per budget. AI Token CounterCount tokens for GPT, Claude and Gemini, with context usage and cost.