NanoGPT Speedrun
Improve a small GPT training script to reach a target validation loss as fast as possible on fixed hardware.
OpenAI and METR run their own constrained variants on one H100 or a budget. METR used it in July 2026 to define an expenditure horizon, the budget where humans become cheaper than agents.
- Made by
- Keller Jordan (community); OpenAI and METR variants
- Released
- June 2024
- Kind
- Machine learning engineering
- Level
- Research frontier
- Scored
- Checked automatically
- Answers
- Agent task
- Tasks
- All public
- Last in a system card
- September 2026
- Last model added
- September 2026
7
System cards report it, from 1 lab
No scores here yet
No lab, leaderboard or Epoch AI run has reported a score for NanoGPT Speedrun yet.
Labs report it only in system cards
We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark. Some system cards do, below.
7 system cards report it, from 1 lab
Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.
| Date | Document | Score | As the document writes it | Section |
|---|---|---|---|---|
| Sep 3, 2026 | GPT-6 Astra system card | NanoGPT, mean normalized reward vs output tokens, chart without printed numbers (Figure 54) | AI R&D risk | |
| Jul 9, 2026 | GPT-5.6 Terra system card | NanoGPT, mean reward by cost and latency, chart without printed numbers (Figures 41 to 44, 9.1.3.3) | AI R&D risk | |
| Jul 9, 2026 | GPT-5.6 Sol system card | NanoGPT, mean reward by cost and latency, chart without printed numbers (Figures 41 to 44, 9.1.3.3) | AI R&D risk | |
| Jul 9, 2026 | GPT-5.6 Luna system card | NanoGPT, mean reward by cost and latency, chart without printed numbers (Figures 41 to 44, 9.1.3.3) | AI R&D risk | |
| Jun 25, 2026 | GPT-5.6 Terra system card | NanoGPT, mean reward by cost and latency, chart without printed numbers (Figures 41 to 44, 9.1.3.3) | AI R&D risk | |
| Jun 25, 2026 | GPT-5.6 Sol system card | NanoGPT, mean reward by cost and latency, chart without printed numbers (Figures 41 to 44, 9.1.3.3) | AI R&D risk | |
| Jun 25, 2026 | GPT-5.6 Luna system card | NanoGPT, mean reward by cost and latency, chart without printed numbers (Figures 41 to 44, 9.1.3.3) | AI R&D risk |
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