Token calculator for LLM prompts, documents, code, and chat messages. Count tokens locally and estimate OpenAI, Claude, and Gemini API costs.

OpenAI's large language models process text using tokens, which are common sequences of characters found in a set of text. The models learn to understand the statistical relationships between these tokens, and excel at producing the next token in a sequence of tokens.

Calculate tokens and costs for popular LLM models including GPT-4, Claude, and Gemini

Quickly calculate and compare token costs for top AI models like GPT-5, Opus, Gemini, and DeepSeek. Enter your text to see real-time pricing and choose the most cost-efficient option.

Use this reference to estimate token usage before running your text through the calculator. Type or paste any text — a system prompt, user message, or full conversation. The calculator tokenizes in real time as you type. Choose from GPT-4o, Claude, Gemini, DeepSeek and 20+ models.

Use this free LLM token counter to quickly estimate GPT, Llama, and Gemini prompt size, track token usage, and understand API costs. Our privacy-first calculator works entirely in your browser.

Free token counter and LLM cost calculator. Count tokens and compare live API pricing for GPT, Claude Opus, Gemini, Llama, DeepSeek, Qwen and 130+ models. No signup, nothing leaves your browser.

Free online text token calculator. Live token counts for OpenAI (o200k_base, cl100k_base), DeepSeek, Claude, and Gemini. Optimize your LLM API billing and token efficiency.

Calculate exact token counts and costs across GPT-4o, Claude, Gemini, Llama and more. Browser-native — your text never leaves your device.

Count tokens in your text and see what it would cost to process across all major LLM providers. Supports GPT-5.4, Claude Opus 4.6, Gemini 3.1 Pro, Grok 4.1, DeepSeek, and more.