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FlashKDA

Moonshot AI
open source / Overall score: 2.0

FlashKDA 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.

Openness

5 high confidence
5.0
license
MIT(OSI)
source
public
core features withheld
no

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.

Adoption

2 low confidence
2.0

FlashKDA ships no registry package and installs from source, so GitHub stars are the only available adoption signal.

Capability

2 medium confidence
2.0

FlashKDA provides forward and backward CUTLASS kernels for one linear-attention variant, Kimi Delta Attention, purpose-built for Moonshot AI's Kimi model family rather than a broad attention technique. That single-model, single-variant scope is well short of a production engine such as TensorRT.

  • https://github.com/MoonshotAI/FlashKDA/blob/master/README.md recorded 2026-10-07

    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 2026-09-27