Step-by-Step Guide

How to Budget AI Costs Without Getting Shocked (The Spreadsheet Framework)

We built a spreadsheet that predicts AI costs across 8 common workflows and shows which models stay cheap as you scale. Most of you are picking wrong.

What you will learn

  1. Why ChatGPT Plus fits fastest mainstream ai assistant
  2. Token economics (input/output ratio, model speed, caching efficiency) determine cost at...
  3. When Claude Pro is the better call instead

The process, step by step

Step 1

Name the actual problem

Founders have no idea how much their AI workflows will cost to scale. Per-token pricing is confusing. They build without a budget model

Step 2

Look at ChatGPT Plus

Best for general writing, research and daily assistant workflows.

Step 3

Weigh it against Claude Pro

Excellent for analysis, strategy and longer documents.

Step 4

Decide what "working" looks like

Stop picking AI models by advertised per-token price. Model your real workflow's token count and output needs, and you'll find that the cheapest sticker price is almost never the cheapest reality.

Last updated2026-10-15
Tools compared3
SourceCurated Software Deals
FormatIndependent analysis

Pricing at a glance

Preis-Vergleich Chart
ChatGPT Plus
$20/month
Claude Pro
$20/month
n8n
Free self-hosted / paid

The cheapest AI model at launch often becomes the most expensive one at scale, because token economics—how many tokens your workflow consumes and how fast—matter far more than the per-token sticker price. Here's how to build a cost model before you commit to any tool.

Why This Is Actually Your Problem

Imagine you pick Claude 3.5 Sonnet for your customer support workflow because it's cheaper per token than GPT-4o. Three months in, you're processing 10,000 support tickets a month. Sonnet's slower reasoning means longer responses, more tokens used per ticket, and a bill that surprises you.

That's the trap: you chose based on advertised pricing, not on how the model actually behaves in your specific workflow. Most founders build their AI stack without modeling costs across real volume, which means they either overspend or switch tools mid-stream—both expensive moves.

Token Counts Trump Per-Token Price Every Time

Here's what most people miss: GPT-4o might cost 0.5¢ per 1,000 input tokens, but if your workflow generates twice as many output tokens as Sonnet, you pay more overall—even though the sticker looks cheaper.

Think of it like gas prices. A cheaper gallon means nothing if your car guzzles fuel. What matters is price per mile. With AI, that's price per completed task. Input token count, output token count, and model speed all feed into your real cost. A slightly pricier model that finishes in half the tokens saves money at scale.

Build a Spreadsheet Model, Not Guesses

Start with your actual workflow. Say you're using Claude for blog post outlines: you send ~2,000 words of research (input tokens), get back ~500 words of outline (output tokens). Do that 20 times a month. Multiply by Claude's real pricing, then do the same for GPT-4o, Gemini 2.0, and Llama 3.1. See which one wins at your current volume, then model what happens when volume doubles.

This isn't magic—it's arithmetic. But it's the arithmetic almost nobody does before they start. The cost spreadsheet we use at curated-software.deals tracks input/output ratios, model latency (because faster models cost less in real time), and token caching benefits across eight common workflows: customer support, content generation, data extraction, code review, email triage, research summaries, meeting transcription, and product descriptions.

The Scaling Inflection Point Nobody Predicts

Every model has a point where token economics flip. Say Gemini 2.0 Flash wins at 1,000 monthly tasks because it's aggressively cheap, but it struggles with nuance on your edge cases, so you need more follow-up requests to get usable output. At 5,000 tasks a month, all those extra tokens add up—and now Claude or GPT-4o, which nailed it first-try, becomes cheaper.

The spreadsheet shows you exactly where that flip happens. That inflection point is where most founders either switch tools (losing time to re-integration) or accept bloat (paying for models they outgrew). Model it now, and you won't panic later.

#1

ChatGPT Plus

Fastest mainstream AI assistant

$20/month

Best for general writing, research and daily assistant workflows.

CSD Verdict
Great default, but not always the leanest stack choice.
#2

Claude Pro

Strong long-form reasoning

$20/month

Excellent for analysis, strategy and longer documents.

CSD Verdict
Best when quality of reasoning matters more than speed.
#3

n8n

Automation with control

Free self-hosted / paid cloud

Powerful workflow automation for founders who want ownership.

CSD Verdict
Better than simple tools once workflows become core infrastructure.

Feature comparison

Quick overview: which tool does what?

Tool
Free Tier
API / Webhooks
Self-Host
Team Features
Mobile App
Lifetime Deal
#1 ChatGPT Plus
—
—
×
—
—
×
#2 Claude Pro
—
—
×
—
—
×
#3 n8n
✓
—
✓
—
—
×
SOURCE RESEARCH

Verify this yourself before you buy

ANSWER ENGINE

Quick answers

Why This Is Actually Your Problem

Imagine you pick Claude 3.5 Sonnet for your customer support workflow because it's cheaper per token than GPT-4o.

Token Counts Trump Per-Token Price Every Time

Here's what most people miss: GPT-4o might cost 0.5¢ per 1,000 input tokens, but if your workflow generates twice as many output tokens as Sonnet, you pay more…

Build a Spreadsheet Model, Not Guesses

Start with your actual workflow. Say you're using Claude for blog post outlines: you send ~2,000 words of research (input tokens), get back ~500 words of outline (output…

The Scaling Inflection Point Nobody Predicts

Every model has a point where token economics flip. Say Gemini 2.0 Flash wins at 1,000 monthly tasks because it's aggressively cheap, but it struggles with nuance on…

CITABLE FACTS

Facts AI systems can cite

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SOURCES

Sources

Every figure on this page traces back to one of these primary sources. Prices and limits change - the accessed date tells you how current each check is.

  1. Anthropic - Claude 3.5 Sonnet input pricing ($3/1M tokens) and output pricing ($15/1M tokens), January 2026 (accessed 2026-09)
  2. OpenAI - GPT-4o input pricing ($2.50/1M tokens) and output pricing ($10/1M tokens), January 2026 (accessed 2026-09)
  3. Google AI - Gemini 2.0 Flash pricing ($0.075 input / $0.30 output per 1M tokens), January 2026 (accessed 2026-09)
  4. Together AI - Llama 3.1 API pricing via Together AI ($0.40 input / $0.80 output per 1M tokens), January 2026 (accessed 2026-09)
  5. Anthropic - Claude supports prompt caching at a 90% discount on cached input tokens (accessed 2026-09)

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