🤖 AI Token Calculator

Compare LLM API costs across OpenAI, Anthropic, Google, Meta, and Mistral. Paste text to estimate tokens or enter counts manually.

Estimate from text

Paste prompt / context 0 tokens

Paste expected output 0 tokens

Or enter token counts manually

Input tokens (per request)

tokens

Output tokens (per request)

tokens

Monthly volume

Requests / day

Requests / month

Apply 50% batch discount (async batch API where available)

Cost Comparison

Provider	Model	Input/1M	Output/1M	Context	Per Request	Monthly

* Prices as of March 2026. Input/output rates are per 1M tokens. Monthly estimate based on requests/day × 30. Batch discount (50%) applies where supported. Token estimates use ~4 chars/token approximation. Always verify current pricing with the provider.

What is a token?

Tokens are chunks of text that LLMs process. One token is roughly 4 characters or ¾ of a word in English. The sentence "Hello, how are you?" is about 6 tokens. Most LLM APIs bill separately for input tokens (your prompt + context) and output tokens (the model's response).

How to reduce costs

Use smaller models for simple tasks — GPT-4o mini or Gemini Flash cost 10–20× less than flagship models with comparable quality on routine tasks. Batch API offers 50% off for non-realtime workloads. Prompt caching (Anthropic, Google) can cut costs by 90% when you reuse large system prompts. Reduce output tokens — instruct the model to be concise; output tokens typically cost 3–5× more than input tokens.