Free tool
LLM API Cost Calculator
What does your AI actually cost? Answer a few questions and we'll size your monthly bill across Claude, GPT, Gemini, DeepSeek, and Kimi, and show what it costs with Coworker.
A few questions first
How many people use AI?
How many AI tasks does each run per day?
What does a typical task look like?
Bigger tasks send and generate more tokens.
Which model do you default to?
The model teams reach for when unsure.
Here's your estimate
Estimates use published per-token API pricing (June 2026) and typical token sizes per task. Actual cost varies with caching, batching, and context length.
The same workload, priced across every model
Your 4,400 tasks/mo at the “standard work” size, billed on each model. This spread is exactly why routing beats picking one model for everything.
Frequently asked questions
How is LLM API cost calculated?
API pricing is per token, split into input (what you send) and output (what the model writes back). Monthly cost is your input tokens times the input rate plus your output tokens times the output rate, priced per million tokens. Output is usually 3 to 6 times more expensive than input.
Which LLM API is cheapest?
Budget models like GPT-4.1 Nano, Gemini 3.1 Flash-Lite, and DeepSeek run a fraction of frontier prices, while flagship reasoning models like GPT-5.5 and Claude Opus cost the most. The cheapest model that still does the job well is what matters, which is why routing beats picking one model for everything.
How much can model routing save?
A lot. Most teams default to a frontier model when unsure, so simple tasks get billed at premium rates. Routing each task to the right tier, a fast model for summaries and a frontier model only for hard reasoning, commonly cuts total spend by 80% or more with little quality loss.
How does Coworker make AI cheaper?
Coworker AI pairs every task with the right model and the right context automatically, so you get frontier-quality chat, cowork, and code for roughly 80% less than frontier API rates. It connects to 50+ tools, is US-hosted, and is SOC 2 Type II compliant. Plans are a free trial, Pro at $29.99, Max at $149.99, and custom Enterprise.
Are these prices up to date?
Prices were verified in June 2026 from published provider API documentation. Model pricing changes often, so check each provider's pricing page for the exact current rate before committing to a budget.
Keep exploring
Stop overpaying for frontier tokens
Coworker pairs every task with the right model and context, so you get frontier-quality chat, cowork, and code for 80% less.