Free LLM Cost Tools and Calculators

Calculate your AI product's gross margin from revenue, LLM API spend and other COGS, and see what a 20% lower model bill does to margin and gross profit..

Calculate the ROI of an LLM gateway: token savings, the gateway's fee, and the engineering time you no longer spend running your own, as monthly and yearly net savings..

Calculate what OpenRouter's 5.5% platform fee on credit purchases costs at your spend, per month and per year, and compare it with a guaranteed 20% saving..

Estimate how much prompt caching saves on your LLM bill from monthly input tokens, cacheable share, hit rate, and your model's input and cached prices..

Estimate your savings from moving work to the OpenAI, Anthropic or Gemini Batch API at half price, from monthly spend and the share that can wait..

Compare self-hosting an open-weight LLM on GPUs with paying per token: cost per 1M tokens at your utilization, monthly cost and breakeven, including engineering time..

Calculate your LLM API cost per user and as a share of revenue per user, and what a 20% lower model bill does to unit economics..

Compare the monthly cost of your workload across GPT-6, Claude 5.5 and Gemini models: enter requests and tokens, and see every model ranked by cost..

Upload or paste your LLM usage export and see spend by model, cache share and output share, with the red flags that point to savings.

Estimate monthly API cost from tokens and prices.

Count tokens in any text.

See the guaranteed 20% saving on your spend.

Your bill after optimization and our 10% fee.

Calculate your AI customer support cost per ticket from messages, tokens and model prices, see where the money goes, and how to cut it 20% or more..

Calculate voice AI cost per minute across speech-to-text, the LLM and text-to-speech, see which part dominates, and how to cut it..

Estimate what an AI agent costs per task from steps, tokens per step, cache share and model prices, and how loop limits and caching change it..

Calculate RAG chatbot cost per query from retrieved context, prompt size, output and embedding costs, and see how chunk size and top-k change your bill..

Calculate your AI copilot's LLM cost per active user per month from requests per day, tokens and prices, and compare it with what each user pays..

Calculate LLM document processing cost per page for extraction, classification and summarization, and how batch pricing and smaller models cut it..

Estimate AI coding tool API spend per developer per month from sessions, tokens and caching, and how teams cut coding-agent costs..

Calculate the LLM cost per lead of an AI SDR or outbound sales agent from research steps, tokens and prices, and how to cut it..