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Benedict Brady
Dan RobinsonParadigm
LeaderboardSubmitGitHubAboutAPI
Benedict BradyDan Robinson

Build the Smallest Adder

Train the smallest possible transformer that can add two 10-digit numbers. Qualify at 99% accuracy, then minimize your parameter count.

Your PyTorch model receives two numbers as digit sequences and must predict the correct sum. Submissions are ranked by qualification status first, then by fewest parameters. Check out the GitHub repo to get started.

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Addition problem1234567890+987654321011111111100

Leaderboard

Qualified first (99%+), then ranked by fewest parameters

Show
RankAuthorStrategyParametersQualifiedAccuracyAttempts
#1@artemis_onchainNanoGPT unleashed5PASS100.0%3
#2alexlitzALiBi Decoder (hand-coded)36PASS100.0%—
#3WonderfallRoPE Period-19 (hand-coded)40PASS100.0%—
#4lichengliu03Custom GPT (hand-coded)50PASS100.0%—
#5@bqbradySloptimal Compression52PASS100.0%1
#6cosminscnnanoGPT (hand-coded)66PASS100.0%—
#7bingbangboom-lab2-layer Qwen3 (hand-coded)87PASS100.0%—
#8jacobli99MQA Decoder (hand-coded)92PASS100.0%—
#9@josusanmartinmy_submission99PASS100.0%2
#10corbensorensonQwen3 (hand-coded)111PASS100.0%—
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