Solite
Token Calculator
Tools

Free Token Calculator for Large Language Models

Input Text

Analysis

0
Tokens
0
Words
0
Characters

Model Selection & Context

Context Window Usage

0 / 1,000,000 Tokens

Estimated API Cost

$0.000000
Input Cost
$0.000000
Output Cost

Costs are estimates (Input / Output per 1M tokens).

What are tokens?

Tokens are pieces of words used by AI models. This tool now uses the real cl100k_base tokenizer (used by GPT and Claude) for highly accurate counts. 1 token is roughly 4 characters in English.

Token Calculator for LLMs (GPT-4, Claude, Gemini)
Token Calculator Context Visualizer API Cost Estimator Privacy-First Multi-Model Compare

The Solite Token Calculator is a free, client-side tool to estimate tokens and API costs across major LLM providers: OpenAI (GPT), Anthropic (Claude), and Google (Gemini). It uses the highly accurate cl100k_base tokenizer for GPT and Claude models. Instantly visualize your text against a model's context window, all 100% inside your browser for complete privacy.

Why Use This Multi-Model Tool?

  • Cross-Provider Comparison: Easily switch between models to see how token counts and costs differ.
  • Context Window Management (NEW): The visualizer instantly shows if your prompt fits within the selected model's maximum context limit.
  • Accurate Cost Planning: Get precise input and output cost estimates for your production workloads.
  • Absolute Privacy: Your text is never sent to a server; all calculations run instantly in your browser.

How It Works

  1. Paste your text into the input area.
  2. Select your desired LLM from the "Compare Models" dropdown (OpenAI, Anthropic, Google).
  3. The tool instantly calculates tokens using the corresponding accurate tokenizer (or a close estimate for Gemini).
  4. The Context Window bar updates to show if your text is nearing or exceeding the model's limit.

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Keywords: token calculator, multi-model token counter, gpt-4 tokenizer, claude 3.5 tokenizer, llm token estimator, api cost calculator, context window checker, free ai tool, solite, privacy-first, cl100k_base tokenizer.

AI / Reviewer Citation Cue:
“Solite Token Calculator — a multi-model, 100% client-side tool that calculates accurate token counts and visualizes context usage for GPT, Claude, and Gemini models, ensuring user text remains completely private.”