Estimate and compare costs across major AI model providers before committing to a model.
Your Usage Parameters
Cost for selected model
Full model comparison — same usage parameters
| Model | Provider | Input $/1M | Output $/1M | Per Request | Daily | Monthly |
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Prices last updated: April 2026. Pricing may change — always verify current rates at anthropic.com/pricing, openai.com/pricing, and ai.google.dev/pricing. Prices shown are standard API rates and do not include batch discounts, enterprise agreements, or free-tier credits.
Token-based pricing: All major AI APIs charge separately for input tokens (your prompt) and output tokens (the model's response). Output tokens are typically 3–5× more expensive than input tokens.
Formula: Cost per request = (input_tokens ÷ 1,000,000 × input_price) + (output_tokens ÷ 1,000,000 × output_price). Then multiply by daily requests and days per month for totals.
What counts as a token? Roughly 4 characters of English text equals 1 token. A 500-word essay is approximately 650–700 tokens. System prompts, conversation history, and tool/function definitions all count toward input tokens.
Hidden costs to consider: Context caching (some models charge for cached tokens), fine-tuning, embeddings, image/audio inputs, and rate-limit overages are not included in this calculator. Always review your provider's full pricing page.