Free Developer & SaaS Tool

AI API & Token Cost Calculator

Estimate daily, monthly, and annual LLM API costs for OpenAI, Anthropic Claude, and DeepSeek models. Optimize token usage and prompt caching before scaling your SaaS MVP.

1. Select AI Model & Provider

Daily Active Users (DAU): 500

Prompts per User / Day: 10

Avg. Input Tokens per Prompt: 1,000 tokens

Avg. Output Tokens per Prompt: 400 tokens

Enable Prompt Caching (50% Input Token Discount)

Simulates Anthropic & OpenAI system prompt caching savings.

API Cost Projection

Monthly Estimated Cost:$47.25

Daily Expenditure:$1.57 / day

Yearly Expenditure:$575 / yr

💡 Prompt Caching saves you ~$11.25 / month!

Daily Prompts:5,000

Daily Input Tokens:2.50M

Daily Output Tokens:2.00M

Total Monthly Tokens:135.0M tokens

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⚡ Cost Reduction Strategies:

• Model Routing: Use GPT-4o Mini for output generation and cheaper models (GPT-4o-mini) for query intent routing.

• Context Pruning: Dynamically truncate chat histories over 5 rounds to reduce input token bloat by 60%.