Calculator
AI Agent Cost Calculator
Estimate a multi-step AI agent's monthly model-token and tool costs from tasks, model calls, and tokens per call.
Result
Estimated agent cost
$71.00
Model token cost
$21.00
Tool cost
$50.00
How to use this calculator
What this calculator does
Estimate a multi-step AI agent's monthly model-token and tool costs from tasks, model calls, and tokens per call.
How to use it
Select a model pricing preset and enter how many tasks you expect per month, including billable repeat attempts. Estimate the number of model calls per task and average input and output tokens for each call. Enter extra tool or data API charges as a combined cost per task; use the result to compare high- and low-usage scenarios.
What the result means
The estimated monthly cost combines model input tokens, model output tokens, and the entered tool charge per task. More calls per task increase the model portion, while higher monthly task volume increases both portions. Check actual usage logs and current vendor pricing before budgeting; the result excludes infrastructure, subscriptions, human review, caching adjustments and extra paid attempts unless included in your inputs.
Browse more ai calculators for related estimates and comparisons.
Actual AI costs depend on provider pricing, model choice, token usage, discounts, caching, retries, batching, tool calls, workflow design, and usage volume.
Worked example: where the estimated agent cost comes from
The starting form values represent 5,000 tasks per month, four model calls per task, 900 input and 300 output tokens per call, and a separate $0.01 tool charge per task. The selected balanced pricing preset assumes $0.50 per million input tokens and $2.00 per million output tokens.
- 5,000 tasks × 4 calls = 20,000 model calls.
- 20,000 × 900 = 18 million input tokens, costing $9.00.
- 20,000 × 300 = 6 million output tokens, costing $12.00.
- 5,000 × $0.01 = $50.00 in tool charges.
Estimated monthly total: $9 + $12 + $50 = $71.
Pressure-test the estimate
Keep all other values unchanged and double the steps to eight. Model cost rises to $42, but the task-level tool charge remains $50, for a $92 total. If instead the number of tasks doubles to 10,000, the original four-step total doubles to $142. These changes have different effects because tool charges are entered per task, not per step.
Each “step” in this estimate represents one model call with the entered average token use. Include repeat attempts in your task or step assumptions when they generate extra paid calls. The calculator does not separately model cached-token discounts, provider-specific surcharges, subscription seats, infrastructure, or human review.
The prices are deliberately labelled as planning presets. Actual bills depend on current provider rates, billing units, workflow design and measured usage.
Scenario guidance
When to use this
Use this when an AI agent performs multi-step work rather than a single prompt-and-response call.
Example scenario
A support operations team is pricing an agent that classifies a ticket, searches a knowledge base, drafts a reply, and checks the answer before sending.
Inputs that usually matter most
- Model calls (agent steps) per task; count only steps that actually invoke the priced model, including retry calls.
- Tokens per step, especially when tools return long records or search results.
- Tool cost per task, which can include search, browser, workflow, or paid data API usage.
Common mistake to avoid
Do not treat a tool-only action as an additional paid model call, or treat a repeated model call as free. Include any separate tool vendor charge in the per-task input.
How to interpret the result
A higher result often points to step count, context size, or tool fees as the first places to optimize before changing the whole workflow.
Actual agent costs depend on provider pricing, model choice, token usage, tool calls, caching, retries, workflow design, and task volume.
Formula
Each entered agent step is priced as one model call with the supplied average input and output tokens. Monthly task volume multiplies both token cost per task and the extra tool charge entered per task. The model price choices are illustrative assumptions, not live quotations.
Example agent cost
At the illustrative balanced rates ($0.50 per million input tokens and $2.00 per million output tokens), 5,000 tasks x 4 model calls x 900 input and 300 output tokens cost $21 in model tokens. Adding $0.01 per task in tool fees ($50) gives an estimated $71 monthly total.
Frequently Asked Questions
Why include steps per task?
Agent workflows usually plan, call tools, inspect results, and respond, which can mean several model calls per task.
What belongs in tool cost?
Use it for search APIs, data vendors, browser runs, workflow automation fees, or other per-task services.
Does the estimate include retries, caching, or human review?
Extra paid model attempts should be included in the tasks or calls-per-task inputs. The estimate does not automatically apply cache discounts or add human review, hosting, or seat fees.
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