LLM Token Counter
Overview
LLM Token Counter facilitates token limit management for language models like GPT-3.5 and GPT-4. It ensures prompt tokens stay within limits through a client-side JavaScript implementation, enhancing compatibility and performance for AI developers and researchers.
From the official site
Free LLM pricing calculator for GPT-5, Claude, Gemini, Llama & DeepSeek. Count tokens, calculate API costs, and compare pricing across 300+ models.
The text above is quoted from this tool’s official website — the vendor’s own words.
Key points from the official site
- AI Coding Tracker
- OpenClaw Deployment
- Embedding Models
- Token Optimization Tips
- Provider Token Counters
The points above are quoted from this tool’s own website sections and feature lists — vendor copy, not our review.
Official FAQ
- What is a token in AI language models?
- A token is a piece of text that AI models process. Tokens can be words, parts of words, or punctuation. On average, 1 token equals about 4 characters or 0.75 words in English. Different models use different tokenizers, so the same text may have different token counts.
- How do I count tokens for GPT-5 or ChatGPT?
- Enter your text in our token counter above to get an accurate count for GPT-5 and other OpenAI models. GPT-5 uses the cl100k_base tokenizer. Our tool shows token counts and estimated costs for your prompts across all major AI providers.
- Why do different AI models have different token counts?
- Each AI provider uses a different tokenizer algorithm. OpenAI uses tiktoken, Anthropic uses their own tokenizer, and open-source models like Llama use SentencePiece. This means the same text can result in different token counts and costs depending on the model.
- How are AI API costs calculated?
- AI API costs are calculated based on input tokens (your prompt) and output tokens (the AI response). Prices are typically quoted per 1 million tokens. For example, GPT-5o costs $2.50 per 1M input tokens. Our calculator shows real-time cost estimates for your specific prompts.
- Which AI model is the cheapest per token?
- Token prices vary widely. Budget models like GPT-5o-mini ($0.15/1M tokens) and Claude 3.5 Haiku ($0.80/1M tokens) offer the lowest costs. Premium models like GPT-5o and Claude 3.5 Sonnet cost more but offer better performance. Use our comparison table to find the best value for your needs.
These questions and answers come from the tool’s own structured data, not written by us.