AI Cost Calculator
Estimate AI API costs before you ship.
Forecast OpenAI, Claude, Gemini, DeepSeek, and Kimi token spend before usage scales. Model prices are transparent reference rates per one million tokens for planning and ROI conversations.
Tool Section
Estimate token spend
Enter average tokens per request and daily volume. Prices are shown as USD per 1M tokens for planning.
Estimated cost
GPT-5.5
Input $1.25 / 1M tokens · Output $10.00 / 1M tokens
Cost Per Request
$0.0111
Estimated Cost Per Day
$11.125
Estimated Cost Per Month
$334
Estimated Cost Per Year
$4,061
Cost Comparison Table
Compare monthly AI model costs
Based on your token and request assumptions above.
| Model | Input Price | Output Price | Estimated Monthly Cost |
|---|---|---|---|
| GPT-5 | $1.25 / 1M | $10.00 / 1M | $334 |
| GPT-5.5 | $1.25 / 1M | $10.00 / 1M | $334 |
| GPT-5 Mini | $0.25 / 1M | $2.00 / 1M | $66.75 |
| GPT-4o | $2.50 / 1M | $10.00 / 1M | $428 |
| GPT-4o Mini | $0.15 / 1M | $0.60 / 1M | $25.65 |
| Claude Sonnet | $3.00 / 1M | $15.00 / 1M | $585 |
| Claude Opus | $15.00 / 1M | $75.00 / 1M | $2,925 |
| Claude Haiku | $0.80 / 1M | $4.00 / 1M | $156 |
| Gemini 2.5 Pro | $1.25 / 1M | $10.00 / 1M | $334 |
| Gemini 2.5 Flash | $0.30 / 1M | $2.50 / 1M | $82.50 |
| DeepSeek | $0.27 / 1M | $1.10 / 1M | $46.65 |
| Kimi | $0.60 / 1M | $2.50 / 1M | $105 |
Compare model economics before picking a provider.
Estimate daily, monthly, and annual cost from token volume.
Keep planning private with no database, login, API key, or backend.
Reference model prices
Prices are displayed as USD per 1M input or output tokens. Providers can change pricing, cached-token rules, batch discounts, and enterprise terms, so verify official pricing before committing budget.
GPT-5
OpenAI
Input: $1.25 / 1M tokens
Output: $10 / 1M tokens
GPT-5.5
OpenAI
Input: $1.25 / 1M tokens
Output: $10 / 1M tokens
GPT-5 Mini
OpenAI
Input: $0.25 / 1M tokens
Output: $2 / 1M tokens
GPT-4o
OpenAI
Input: $2.5 / 1M tokens
Output: $10 / 1M tokens
GPT-4o Mini
OpenAI
Input: $0.15 / 1M tokens
Output: $0.6 / 1M tokens
Claude Sonnet
Anthropic
Input: $3 / 1M tokens
Output: $15 / 1M tokens
Claude Opus
Anthropic
Input: $15 / 1M tokens
Output: $75 / 1M tokens
Claude Haiku
Anthropic
Input: $0.8 / 1M tokens
Output: $4 / 1M tokens
Gemini 2.5 Pro
Input: $1.25 / 1M tokens
Output: $10 / 1M tokens
Gemini 2.5 Flash
Input: $0.3 / 1M tokens
Output: $2.5 / 1M tokens
DeepSeek
DeepSeek
Input: $0.27 / 1M tokens
Output: $1.1 / 1M tokens
Kimi
Moonshot AI
Input: $0.6 / 1M tokens
Output: $2.5 / 1M tokens
FAQ
What is an AI cost calculator?
An AI cost calculator estimates API spend from input tokens, output tokens, model prices, and daily request volume across providers like OpenAI, Claude, Gemini, DeepSeek, and Kimi.
How do I calculate OpenAI GPT-5.5 costs?
Enter your average input and output tokens per request, daily request volume, and select GPT-5.5. The calculator multiplies tokens by the per-million-token price and scales by daily requests.
How much does Claude Sonnet cost per token?
Claude Sonnet pricing is shown as USD per 1M tokens. Input and output prices are listed separately because output tokens usually cost more than input tokens.
What is the cheapest LLM for high volume?
For high-volume tasks, efficient models like GPT-5 Mini, Gemini 2.5 Flash, or DeepSeek often have the lowest per-token cost. Compare all models in the comparison table.
How accurate are AI cost estimates?
Estimates are planning numbers based on reference prices. Always verify current provider pricing before budgeting production spend, as rates can change.
Does this tool call AI APIs?
No. This is a static browser calculator. It does not call any API, require an API key, or upload your data.
What is a token in LLM pricing?
A token is a chunk of text used by language models. In English, one token is roughly 3-4 characters. Input tokens are your prompt; output tokens are the model's response.
How do I reduce AI API costs?
Trim prompts, cache repeated responses, route simple tasks to cheaper models, limit max output tokens, and monitor daily request volume.