FlashKDA
Moonshot AIFlashKDA provides high-performance Kimi Delta Attention (KDA) kernels built on CUTLASS, powering Moonshot AI's Kimi model line. It is auto-dispatched as a backend from the flash-linear-attention library's chunk_kda operator.
Verified 2026-09-02 via the GitHub API and the LICENSE body.
Openness
5 high confidence- license
- MIT(OSI)
- source
- public
- core-gated
- ungated
MIT license body confirmed. The repository is public and unarchived and builds the whole product, and the README describes no paid tier, enterprise edition or license-gated build beside it, so source is public and the core ungated.
- https://github.com/MoonshotAI/FlashKDA/blob/master/LICENSE recorded 2026-09-02
LICENSE body is the verbatim MIT text under a Moonshot AI copyright line.
- https://api.github.com/repos/MoonshotAI/FlashKDA recorded 2026-09-02
Repo metadata for flashkda's canonical repository - private false, archived false, fork false.
- https://github.com/MoonshotAI/FlashKDA/blob/master/README.md recorded 2026-09-02
README describes FlashKDA as high-performance Kimi Delta Attention kernels built on CUTLASS, auto-dispatched from flash-linear-attention's chunk_kda, with no paid tier, enterprise edition or license-gated build beside the published source.
Adoption
2 low confidence1,243 GitHub stars, which lands in the 1K-10K stars band of the stars scale, level 2. FlashKDA has no registry package and installs from source, so no download count exists and the stars scale applies.
- https://api.github.com/repos/MoonshotAI/FlashKDA recorded 2026-09-02
Repo metadata - stargazers_count = 1,243 - for MoonshotAI/FlashKDA.
Capability
2 medium confidenceBanded on the category feature matrix as a narrow kernel set: one attention variant, built for one model family. Placed two bands below the tensorrt rung, the same level as thunderkittens and hummingbird.
- https://github.com/MoonshotAI/FlashKDA/blob/master/README.md recorded 2026-09-02
README describes FlashKDA as high-performance Kimi Delta Attention kernels built on CUTLASS, auto-dispatched from flash-linear-attention's chunk_kda, with no paid tier, enterprise edition or license-gated build beside the published source.
Verified 2026-09-02