Knot Delta

On-device model that explains what changed. Give it a commit and Knot Delta writes a grounded report: what moved, why, and the risk. A 9B model, served as a single quantized GGUF that runs on your machine.

Part of the Knot AI family, alongside Knot Scribe (which writes your commit messages). Delta is the change-intelligence layer inside Knot.

A fine-tune of Qwen3.5-9B, merged and exported to a text-only Q4_K_M GGUF (~5.2 GB) for llama.cpp / Ollama.

Capability scorecard (honest)

Every number is measured against objective ground truth (real git history), reported beside the baseline a lazy model would score. No aggregate "intelligence score" is quoted. Frozen held-out set: 325 commits across 9 unseen real repos (vite, vue, svelte, astro, ionic, gumroad, OpenDream, radicle, vllm).

capability number baseline verdict
Change-type (intent read from code), macro-F1 0.409 majority-class 0.032 real — 12.9× base rate (n=235)
Cited files that exist in the diff 100% never hallucinates a file; holds on unseen Go
Reports fully grounded 98.5% 325 held-out commits (first-pass 88%)
Exact-line precision 0.64 0.94 lenient (right region) honest limit: file + region reliable, exact line ~64%

Multi-repo generalization (exact-line precision, 4 unseen repos):

repo language verified line precision
flask Python 11/12 0.74
gin Go (unseen) 12/12 0.70
ripgrep Rust 12/12 0.52
frozen-325 JS/TS + 320/325 0.64

Honest read: Delta never cites a file that isn't in the diff (100% across every repo, including Go, which is absent from its training data), and it always points at the right region. What it does not yet do reliably is pin the exact line — that lands 52–74% of the time, lowest on Rust. It knows which file and which part changed; the precise line is still improving. One capability, measured straight, with the parts that don't yet work said out loud.

Use it

llama.cpp

llama-server --model kd-delta-9b-Q4_K_M.gguf

Ollama

ollama run pointbreaklab/knot-delta

Model

  • Base: Qwen3.5-9B
  • Format: text-only Q4_K_M GGUF, ~5.2 GB
  • Runs: llama.cpp / Ollama, CPU or GPU, fully local
  • License: Apache-2.0
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Architecture
qwen35
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