LLM Token Counter

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Estimated Token Counts

GPT
~0
Claude
~0
Gemini
~0
DeepSeek
~0
Mistral
~0
Llama
~0
Grok
~0

Estimates based on average characters per token. Actual counts vary with content.

Estimated Cost (for this text as input)

ModelEst. TokensInput CostOutput Cost
GPT-5.4~0$0.0000$0.0000
GPT-5.4 Pro~0$0.0000$0.0000
GPT-5.3-Codex~0$0.0000$0.0000
GPT-5.2~0$0.0000$0.0000
GPT-5.1~0$0.0000$0.0000
GPT-5-mini~0$0.0000$0.0000
GPT-5-nano~0$0.0000$0.0000
o3~0$0.0000$0.0000
GPT-4.1~0$0.0000$0.0000
GPT-4.1-mini~0$0.0000$0.0000
GPT-4.1-nano~0$0.0000$0.0000
GPT-5~0$0.0000$0.0000
o3-pro~0$0.0000$0.0000
o4-mini~0$0.0000$0.0000
o3-mini~0$0.0000$0.0000
Claude Opus 4.6~0$0.0000$0.0000
Claude Sonnet 4.6~0$0.0000$0.0000
Claude Sonnet 4.5~0$0.0000$0.0000
Claude Haiku 4.5~0$0.0000$0.0000
Claude Opus 4.5~0$0.0000$0.0000
Claude Sonnet 4~0$0.0000$0.0000
Gemini 3.1 Pro~0$0.0000$0.0000
Gemini 3 Flash~0$0.0000$0.0000
Gemini 3.1 Flash-Lite~0$0.0000$0.0000
Gemini 2.5 Pro~0$0.0000$0.0000
Gemini 2.5 Flash~0$0.0000$0.0000
Gemini 2.0 Flash~0$0.0000$0.0000
DeepSeek Chat (V3.2)~0$0.0000$0.0000
DeepSeek Reasoner (V3.2)~0$0.0000$0.0000
Mistral Large 3~0$0.0000$0.0000
Mistral Medium 3.1~0$0.0000$0.0000
Mistral Small 3.2~0$0.0000$0.0000
Llama 4 Maverick (Groq)~0$0.0000$0.0000
Llama 4 Scout (Groq)~0$0.0000$0.0000
Grok 4~0$0.0000$0.0000
Grok 4.1 Fast~0$0.0000$0.0000
Grok 4 Fast~0$0.0000$0.0000

Prices per 1M tokens. Input cost = cost if this text is sent as input. Output cost = cost if this text were generated as output. Data as of April 12, 2026.

Quick Cost Calculator

Enter a token count to compare costs across models

What This Tool Does

LLM Token Counter is built for deterministic developer and agent workflows.

Estimate token counts for GPT, Claude, Gemini, Llama, and DeepSeek. Compare costs across AI models instantly.

Use How to Use for execution steps and FAQ for constraints, policies, and edge cases.

Last updated:

This tool is provided as-is for convenience. Output should be verified before use in any production or critical context.

Agent Invocation

Best Path For Builders

Dedicated API endpoint

Deterministic outputs, machine-safe contracts, and production-ready examples.

Dedicated API

https://aidevhub.io/api/token-counter/

OpenAPI: https://aidevhub.io/api/openapi.yaml

GET /api/token-counter/ Count tokens and estimate costs
POST /api/token-counter/ Count tokens and estimate costs

Unified Runtime API

https://aidevhub.io/api/tools/run/?toolId=token-counter&a=...

GET and POST are supported at /api/tools/run/ with identical validation and limits.

Limit: req / s, input max 512 KB.

REST API

Base URL

https://aidevhub.io/api/token-counter/

50 requests/day per IP. No authentication required. CORS enabled. OpenAPI spec

Endpoints

GET /api/token-counter/ Count tokens and estimate costs
POST /api/token-counter/ Count tokens and estimate costs

Example

curl "https://aidevhub.io/api/token-counter/?text=Hello+world"

Example Response

{
  "text_length": 13,
  "tokens": {
    "gpt-4o": {
      "model": "gpt-4o",
      "tokens": 4,
      "method": "estimate",
      "cost": {
        "input": 0.00001,
        "output": 0.00004
      }
    }
  },
  "model_count": 32
}

How to Use LLM Token Counter

  1. 1

    Paste text to count

    Paste any content: prompt text, article, code snippet, or conversation. The tool counts tokens using the actual tokenizer for each model.

  2. 2

    Select your target model

    Choose from GPT, Claude, Gemini, Llama, and others. Token counts vary by model due to different tokenizers.

  3. 3

    See token estimate and cost breakdown

    Get total token count, approximate cost at current pricing, and cost per 1M tokens. Useful for budgeting API calls.

  4. 4

    Count multiple texts in batch

    Paste multiple prompts or messages separated by '---'. Get individual counts and total across all inputs.

  5. 5

    Test text reduction strategies

    Use the counter to compare token usage before and after shortening. Remove redundant words or summarize to optimize API costs.

Frequently Asked Questions

What is LLM Token Counter?
LLM Token Counter estimates token counts and costs for text across GPT, Claude, Gemini, Llama, and other major language models. It's essential for developers optimizing prompts and managing API costs.
How do I use LLM Token Counter?
Paste or type your text in the input area, select the model or tokenizer you want to estimate for, and the tool shows the token count and estimated cost in real time. Compare counts across multiple models simultaneously.
Is LLM Token Counter free?
Yes. This tool is free to use with immediate access—no account required.
Does LLM Token Counter store or send my data?
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is sent to any server.
Why do token counts differ between models?
Each model uses a different tokenizer with its own vocabulary and encoding rules. For example, GPT-family tokenizers differ from Claude-family tokenizers. The same text can produce different token counts, which directly affects API costs.