TokenAdvisor
paste a prompt, see what to cut to lower your LLM bill
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What is TokenAdvisor?
TokenAdvisor is a web-based tool that helps users reduce their LLM (Large Language Model) costs by analyzing prompts and showing token counts across multiple AI models. Users paste their prompt into the tool, and it displays token counts side-by-side for Claude, GPT, and Gemini models. The tool uses the same official tokenization methods that the APIs use—including tiktoken for OpenAI (client-side, exact counting)—to provide accurate token estimates.
Key features include side-by-side token comparison across major LLM providers, specific savings recommendations with dollar amounts calculated at the user's volume, and identification of which parts of a prompt can be cut to reduce costs. The tool reveals that the same prompt can have significantly different token counts across models (for example, 142 tokens in GPT vs 156 tokens in Claude), helping users understand where their AI tokens are going.
TokenAdvisor is designed for developers, prompt engineers, AI professionals, and anyone who regularly uses LLM APIs and wants to optimize their prompts to lower their monthly AI bill. The tool helps users learn what to cut from their prompts without sacrificing quality, making it valuable for businesses and individuals looking to reduce LLM costs by up to 45%.
TokenAdvisor pricing
Pricing model: Freemium
Free - The tool is completely free to use with no paid tiers mentioned. No signup required.
TokenAdvisor pros
- Shows exact token counts using official API methods (tiktoken for OpenAI)
- Compares token counts across Claude, GPT, and Gemini side-by-side
- Provides specific savings recommendations with dollar amounts
- Calculates costs at user's specific volume
- Identifies exactly which parts of prompt to cut
- Client-side token counting for OpenAI (exact, not approximate)
- Reveals token count differences between models for same prompt
- Helps reduce LLM bills by up to 45%
- No signup required to use
- Works entirely in browser (client-side processing)
- Shows monthly savings potential based on usage volume
- Helps understand where AI tokens are going
- Promotes precise prompt writing over polite/filler text
- Free to use
- Fast instant token counting after pasting prompt
TokenAdvisor cons
- Only supports 3 models (Claude, GPT, Gemini)
- Does not support open-source models like Llama
- No API or middleware version available yet
- Cannot optimize prompts automatically (only shows recommendations)
- No batch processing for multiple prompts
- No history or saving of past prompts
- Does not analyze output tokens, only input prompts
- No team collaboration features
Frequently asked questions about TokenAdvisor
What is TokenAdvisor?
TokenAdvisor is a free web tool that shows you exactly where your AI tokens go. You paste your prompt and it counts tokens using the same official methods the APIs use, then displays token counts across Claude, GPT, and Gemini side-by-side with specific savings recommendations.
How does TokenAdvisor count tokens?
TokenAdvisor uses the same official tokenization methods that the APIs use—including tiktoken for OpenAI (client-side, exact counting)—to provide accurate token estimates that match what you'll be charged.
Which AI models does TokenAdvisor support?
TokenAdvisor currently supports three major LLM providers: Claude (Anthropic), GPT (OpenAI), and Gemini (Google). It shows token counts for all three side-by-side.
Is TokenAdvisor free to use?
Yes, TokenAdvisor is completely free to use. There are no paid plans or subscription fees mentioned.
Do I need to sign up for TokenAdvisor?
No, you don't need to sign up. TokenAdvisor works entirely in your browser with client-side processing, so you can paste your prompt and get instant results without creating an account.
How much can I save using TokenAdvisor?
Users can reduce their LLM bills by up to 45% by using TokenAdvisor to identify and remove filler text and unnecessary parts from their prompts without sacrificing quality.
Does TokenAdvisor show dollar amounts?
Yes, TokenAdvisor provides specific savings recommendations with dollar amounts calculated at your specific usage volume, so you know exactly how much money you can save monthly.
Why do token counts differ between models for the same prompt?
Different LLM providers use different tokenization methods. The same prompt might be 142 tokens in GPT but 156 tokens in Claude because each model's tokenizer breaks text into tokens differently.
Can TokenAdvisor optimize my prompts automatically?
No, TokenAdvisor doesn't automatically optimize prompts. It shows you which parts of your prompt use the most tokens and provides recommendations on what to cut, but you need to manually edit your prompt.
Does TokenAdvisor have an API?
Not yet. Users have requested an API or middleware version to plug TokenAdvisor in before LLM calls so prompts get optimized automatically, but this feature is not currently available.