Free AI & LLM Cost Calculators

Prices are inputs, deliberately

Model pricing changes often enough that any figure printed into a page is a liability within months. Every calculator here takes the rate as a clearly labelled editable input and points you at the provider's current published pricing, so the tool stays correct as the market moves.

Where the cost actually comes from

The surprise in agent systems is multiplication: steps per task, tokens per step, tool calls and retries compound, so a task that looks like one request is often twenty. Retrieval adds a second multiplier through chunk overlap. The agent-cost and RAG tools make those multipliers explicit, because that is where a budget estimate usually goes wrong by an order of magnitude.

Limits bind before budgets do

Requests per minute and tokens per minute are separate ceilings and they rarely bind at the same point. The throughput calculator shows which one you hit first and what concurrency the workload actually requires — a more useful answer than a monthly cost that assumes the traffic can flow at all.