How many prompt versions can I compare at once?

You can compare between 2 and 4 prompt versions simultaneously. Use the Add Version button to add panels and the Remove button to delete a version when you no longer need it.

How are token counts calculated?

Token counts use a word-based heuristic (approximately 1.3 tokens per word) with adjustments for code symbols and CJK characters. Results are approximate and consistent with GPT/Claude rough estimates.

What is the difference between words and tokens?

Words are whitespace-separated sequences of characters. Tokens are sub-word units used by language models — a single word may be split into multiple tokens. Typical English text averages 1.2–1.4 tokens per word.

AI Prompt Version Comparator

Compare 2–4 prompt versions with stats: tokens, words, characters, lines.

2 versions

Version 1

Version 2

Paste prompt versions above to compare their statistics

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guide:prompt engineering basics

FAQ

How many prompt versions can I compare at once?: You can compare between 2 and 4 prompt versions simultaneously. Use the Add Version button to add panels and the Remove button to delete a version when you no longer need it.
How are token counts calculated?: Token counts use a word-based heuristic (approximately 1.3 tokens per word) with adjustments for code symbols and CJK characters. Results are approximate and consistent with GPT/Claude rough estimates.
What is the difference between words and tokens?: Words are whitespace-separated sequences of characters. Tokens are sub-word units used by language models — a single word may be split into multiple tokens. Typical English text averages 1.2–1.4 tokens per word.

Dynamic multi-version prompt comparator. Add up to 4 prompt versions and instantly see a comparison table with word count, token count, character count, and line count for each. Add or remove version panels on the fly. Ideal for A/B testing prompts and tracking how metrics change across iterations.