This repository holds content under three licenses. 1. Logs, data and networks (everything not listed under 2 or 3): Creative Commons Attribution 4.0 International (CC BY 4.0), https://creativecommons.org/licenses/by/4.0/legalcode 2. Our scripts (*.py and *.sh files written by us, e.g. harness/, exp7_sycophancy/code/, exp8_math/code/): the MIT License, below. 3. MinAtar's source code, which is quoted inside the prompts of exp5_write_from_scratch/: GPL-3.0, the text in exp5_write_from_scratch/LICENSE-MinAtar. Third-party benchmark and dataset content quoted in the logs (for example MATH, GSM8K, IFEval and MMLU-Pro problems in exp8_math/) stays under its own license. --- MIT License Copyright (c) 2026 the authors of "LLMs can understand and write neural network weights" Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.