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AI · June 10, 2026

Language1

Hi HN, I built Language1 (https://language1.app), a word game where you play "reverse Taboo" against an LLM. How it works: You are given a target word (e.g., "Apple") and a list of forbidden "taboo" words (e.g., "fruit", "red", "tree"). Your goal is to write a prompt that guides the LLM to output the exact target word, without using any of the forbidden words. The Benchmark Goal: I am developing this project with the plan of using the gameplay data to build a benchmark dataset. The goal is to test and evaluate LLM capabilities when processing unclear prompts, metaphors, analogies,…

Language1 launched on June 10, 2026 with 3 votes, #6,658 of 22,647 launches that month and more than 50% of that year's launches.

What it does

Language1 is a daily AI prompt game where you play reverse Taboo with LLMs: give clues, avoid forbidden words, and see if the model can guess the target.

Language1 is a reverse Taboo prompt game where you play with LLMs: give clues, avoid forbidden words, and see if the model can guess the target.

Language1 is an AI prompt game where you give clues to large language models while avoiding forbidden words. Play single player mode, race other players, and compete on attempts, tokens, andfrom language1.app

In the maker’s words, at launch

Hi HN, I built Language1 (https://language1.app), a word game where you play "reverse Taboo" against an LLM. How it works: You are given a target word (e.g., "Apple") and a list of forbidden "taboo" words (e.g., "fruit", "red", "tree"). Your goal is to write a prompt that guides the LLM to output the exact…

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