AI Cost Calculator: Find the Cheapest AI Model for Your Usage | RunTheNumbersAI
AI Cost Optimizer

You are probably overpaying for AI
Let's fix that

Most people spend 40 to 70% more than they need to on AI tools. Find out exactly what your setup costs and what it should.

✓Understands task type, not just model pricing
✓Applies batch discounts automatically
✓Flags risky providers before you choose them
ChatGPT Plus breaks even at roughly 130M tokens per month. Most solo users send fewer than 2M. The math almost never works out in your favour.
Show me what I am overpaying
~70% of solo users overpay on flat plans
50% instant saving with Batch API
20x price gap between cheapest and most expensive model
example / solo user / writing live pricing
Your result
Overpaying by $18.35/month
At 20 messages/day for writing tasks, Gemini Flash costs $1.65/mo vs $20/mo on ChatGPT Plus.
ChatGPT PlusFlat subscription
$20.00/mocurrent
Gemini Flash 2.0Google, usage-based API
$1.65/mobest match
GPT-4o miniOpenAI, usage-based API
$4.12/mo
DeepSeek V3Cheapest, but see risk flags
$0.38/mohigh risk
Recommended action
Switch from ChatGPT Plus to Gemini Flash 2.0 via API. At this volume you save $18.35/month, $220/year.
AI Cost Calculator

Let's run the numbers.

Tell us how you actually use AI and we calculate the cheapest option for your specific situation, not a generic comparison table.

You
Tasks
Volume
Costs
How do you use AI?
70%
of solo users overpay on flat plans

ChatGPT Plus breaks even at roughly 130M tokens per month. Most solo users send fewer than 2M. The API is almost always cheaper for individuals.

50%
instant saving with Batch API

OpenAI and Anthropic both offer 50% off for async requests. Document processing, classification, and batch analysis all qualify. Most teams never enable it.

20x
price gap across models

Gemini Flash costs $0.075 per million input tokens. GPT-4o costs $2.50. For tasks that do not need top-tier reasoning, the cheapest model produces identical output.

Models in this comparison