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scrya-com/rotorquant

KV cache compression via block-diagonal rotation. Beats TurboQuant: better PPL (6.91 vs 7.07), 28% faster decode, 5.3x faster prefill, 44x fewer params. Drop-in llama.cpp integration. observed · 2026-08-28

github.com/scrya-com/rotorquant · homepage · Python observed · 2026-08-28

Health v2 · maintenance only

50/100

  • Activity 78
  • Release rhythm 35
  • Longevity 11

Flags: no_releases young no_license

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 160
  • days_rel: n/a
  • days_push: 132
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

1043 stars · 89 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

RotorQuant is a KV cache compression method for LLM inference that replaces full d×d orthogonal rotations with block-diagonal Clifford rotor transforms, integrated as a drop-in quantization scheme in llama.cpp. It claims better perplexity and substantially faster decode/prefill than TurboQuant at the same compression ratio.

Use cases

  • compress kv cache for long-context llm inference
  • speed up llama.cpp decode and prefill
  • reduce gpu memory for llm serving
  • quantize attention k/v vectors at 3-bit
  • compare against turboquant baselines

When to choose

  • you serve LLMs via llama.cpp and need lower memory or higher throughput at low bit-widths
  • you want KV cache quantization with minimal quality loss (PPL) and fast kernels on CUDA or Metal

When to avoid

  • you need a permissively licensed dependency - the repo has no license
  • you need a framework-agnostic solution outside llama.cpp/Triton
  • you require independently verified benchmarks - results come from the authors' own paper

Facets

library · maturity active

llm-inference caching gpu-computing benchmarking large-language-models machine-learning performance gpu-computing python cpp windows kv-cache quantization clifford-algebra llama-cpp cuda metal inference-optimization triton gpu linux macos

5 sources

Member repositories

RepositoryRoleHealth v2
scrya-com/rotorquantmain50

For agents

markdown · JSON · MCP: product_card(name="scrya-com/rotorquant")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem