n8n workflow cost planning

n8n OpenAI Cost Calculator

Forecast OpenAI usage inside n8n workflows by modeling workflow runs, AI nodes, tokens per step, and monthly automation volume.

Start estimating View models

Scenario assumptions

Start with these editable numeric assumptions, then adjust the calculator fields to match your own traffic and token usage.

Workflow runs per month

2,000

Scheduled, webhook, or manual n8n executions.

AI steps per workflow

OpenAI nodes or HTTP calls that invoke a model per run.

Input tokens per step

1,200

Prompt instructions, fields, prior node output, and context.

Output tokens per step

600

Generated JSON, classification, summary, or drafted content.

n8n OpenAI workflow model and usage

Choose a model and edit the numeric assumptions for this n8n OpenAI workflow scenario.

ProviderModel

OpenAIexample-openai-premiumExample price

Input price

$3.00 / 1M tokens

Output price

$12.00 / 1M tokens

Last updated: 2026-06-27View pricing source

This model uses placeholder example pricing. Verify the official source before using it for planning.

Usage assumptions

Estimate traffic and token usage for an average request.

UsersActive seats, customers, or internal users.Requests per dayAverage AI calls per user each day.Input tokensPrompt, history, and retrieved context per request.Output tokensGenerated answer length; SaaS founders should test long replies.Days per monthUse 30 for always-on products or fewer for batch jobs.

Estimated results

Run the calculator to see usage volume and projected cost.

Add your usage assumptions, then calculate to preview estimated AI API spend.

How to read the output

Use the result as a planning estimate, then validate against provider pricing and real usage once the workflow is live.

Workflow run cost

Estimate how much each AI-enabled workflow costs before adding retries or high-volume triggers.

Monthly automation budget

Use the monthly estimate to compare OpenAI-powered workflows with manual operations or SaaS automation limits.

Token control

Trim large node outputs before sending them to OpenAI when workflow context is the main cost driver.

Models to consider

These options come from the central model data and are suggestions to evaluate, not claims that one model is best for every workload.

OpenAI

example-openai-premium

Tool-calling capable option to evaluate for structured workflows.

Input $3.00 / 1M, output $12.00 / 1M.

Open model

OpenAI

example-openai-fast

Tool-calling capable option to evaluate for structured workflows.

Input $1.00 / 1M, output $4.00 / 1M.

Open model

Related planning pages

Move between use-case calculators, provider pages, and pricing comparisons without entering private content.

OpenAI provider page

Open the OpenAI calculator and model list.

AI agent calculator

Estimate multi-step automated agent tasks.

LLM API pricing

Compare OpenAI with other provider pricing assumptions.

n8n OpenAI workflow FAQ

Short answers for estimating this scenario without sharing private prompts, documents, or customer data.

How do n8n workflow runs affect OpenAI cost?

Each run that calls OpenAI creates one or more model requests. Multiply runs by AI steps and average token usage to estimate spend.

Should I count retries?

Yes. If workflows retry failed calls or branch into multiple AI steps, include those calls in the requests per day estimate.

Does this store workflow data?

No. The calculator only uses numeric assumptions and safe model/provider slugs, not workflow payloads or private text.