Tsinghua PACMAN Lab

license

Apache-2.0(OSI

source

public

core-gated

ungated(paid professional services offered by email are support beside the published engine, not a withheld component

The LICENSE body is the full Apache-2.0 text with only the appendix copyright slot filled ("Copyright Qingcheng.AI") - a one-line diff against the canonical text, no appended condition. The repository is public and active and is the engine itself; the README's commercial line offers professional technical service by email, which is selling support, not gating a core. Vendored third-party code is declared SPDX-style under LICENSES/ and third_party/, the REUSE-adjacent shape.

• https://raw.githubusercontent.com/thu-pacman/chitu/public-main/LICENSE recorded 2026-09-01

  LICENSE body, read in full and diffed against the canonical Apache-2.0 text: identical except the appendix copyright line reads "Copyright Qingcheng.AI". No appended terms.

• https://api.github.com/repos/thu-pacman/chitu recorded 2026-09-01

  Repo metadata for thu-pacman/chitu - archived false, license Apache-2.0, 2,997 stars, default branch public-main, pushed 2026-09-01.

• https://raw.githubusercontent.com/thu-pacman/chitu/public-main/README.md recorded 2026-09-01

  README (Chinese), read for a paid tier (professional services by email only - no gated build): "生产级大模型推理引擎" (production-grade LLM inference engine); milestones - DeepSeek-R1 671B single-GPU via CPU+GPU heterogeneous inference, FP4-to-FP8/BF16 online conversion, Ascend 910B native support, Moore Threads adaptation, chitu.run single-file multi-node launcher; licence section states Apache-2.0 with SPDX-marked third-party snippets under LICENSES/ and submodules under third_party/.