TetrisBench – Gemini Flash reaches 66% win rate on Tetris against Opus
Hi HN, I built TetrisBench, a benchmark that tests LLMs on real-time code generation and reasoning through Tetris. Live: https://tetrisbench.com/ *How it works:* Each model starts with an initial optimization function for evaluating Tetris moves. As the game progresses, the model sees the current board state and updates its algorithm—adapting its strategy based on how the game is evolving. The model continuously refines its optimizer: - Board getting too high? Prioritize clearing lines. - Hole forming? Adjust penalties. - Safe stack? Build for a Tetris. The model generates…
TetrisBench – Gemini Flash reaches 66% win rate on Tetris against Opus launched on January 26, 2026 with 111 votes, #305 of 14,584 launches that month and more than 95% of that year's launches.
In plain words
TetrisBench is a benchmarking tool that measures AI model performance in Tetris gameplay. It evaluates how well different large language models play the classic block-stacking game, comparing their strategic decision-making and performance across matches. The tool is designed for developers and AI researchers interested in testing and comparing LLM capabilities in real-time game scenarios. TetrisBench provides quantitative data on model performance, enabling users to assess how different AI systems handle dynamic gameplay requirements.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN, I built TetrisBench, a benchmark that tests LLMs on real-time code generation and reasoning through Tetris. Live: https://tetrisbench.com/ *How it works:* Each model starts with an initial optimization function for evaluating Tetris moves. As the game progresses, the model sees the current board…
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OFRAK Tetris is a project I started at work about two weeks ago. It's a web-based game that works on desktop and mobile. I made it for my company to bring to events like DEF CON, and to promote our binary analysis and patching framework called OFRAK. In the game, 32-bit, little-endian ARM assembly instructions fall, and you can modify the operands before executing them on a CPU emulator. There are two segments mapped – one for instructions, and one for data (though both have read, write, and execute permissions). Your score is a four byte signed integer stored at the virtual address pointed…
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Source: Show HN post ↗ · launch text quoted in part
Launched alongside, January 2026
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