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nanoGPT speedrun
Train GPT-2 small to a fixed validation loss in as little time as possible (placeholder)
| 1 | # nanoGPT speedrun |
| 2 | |
| 3 | > **Placeholder.** This benchmark is here so the benchmark panel can be tried out. Its baseline is from the blueprint or the literature as of 2026-10-19 and must be checked again; every route and score after it is made up. |
| 4 | |
| 5 | ## Task |
| 6 | |
| 7 | Train a 124M-parameter GPT-2 on FineWeb until it reaches 3.28 cross-entropy on the validation set, as fast as possible on eight H100s, after Keller Jordan’s modded-nanogpt speedrun and the AlgoPerf benchmark. Routes change the optimizer, the architecture, the schedule or the kernels; the verifier reruns training on the pinned runner and reports the wall-clock minutes to the target. The baseline is the llm.c reproduction at 45 minutes. |
| 8 | |
| 9 | ## How to take part |
| 10 | |
| 11 | Start a route from `main` (the baseline) or from any route on the leaderboard, keep your files in the route's folder, and push: the verifier scores every commit. Say what your route changes with tags, and keep the misses: a route that scores worse is a result too. |