AI Prompt Cost Calculator

What it does

Free AI cost calculator. Paste your prompt to compare API pricing across GPT-4o, Claude Sonnet 4, Gemini 2.5, Llama 4, and DeepSeek R1. See token counts and monthly costs instantly.

Calculate your AI API costs instantly. Compare 25 models (GPT-5.5, Claude 3.7, Gemini 2.0, DeepSeek V4) side-by-side. See monthly spend, prompt caching savings, and find the cheapest model. Free, no login.

Compare LLM API pricing across 25 models: GPT‑5.5, Claude 3.7, Gemini 2.0, DeepSeek V4 & more. Know your AI costs before you send. Current pricing from official API providers. All prices per 1M tokens. Prices last verified: May 30, 2026. Source: official provider pricing pages. LLM API pricing varies dramatically across providers. As of June 2026, the cheapest text model (Gemini 2.5 Flash-Lite) costs $0.10 per 1M input tokens, while the most expensive (Claude 3 Opus) costs $15.00 — a 150× difference for the same text. OpenAI's GPT-5.5 leads at $5/$30 per 1M tokens for complex reasoning tasks. For budget-conscious developers, DeepSeek V4 Flash offers strong performance at $0.14/$0.28, and…from prompt-cost-calculator-ten.vercel.app

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