FreshContextA context lab · Fife
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02 · Benchmarks
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Rev
A · 2026-10-01

K2-Horizon-36B-A4B · file← K2-Horizon-36B-A4B

Q4_0

A Q4_0 made in one step instead of two. Never scored: our test harness failed on it twice. Requantised here from the local Q8_0, one extra rounding pass.

Size
21.3 GB
Status
Deleted 11 Sep 2026
Scored runs
0
ResultsNever scored

This file never completed a scored run. Its record below says why.

The recordHow it was made · how it was served · what went wrong · what happened to it

Rebuilt from the lab's records by Claude, an AI model. The results above come straight from the automated runs. How these pages are made.

FileK2-36B__cleanQ4_0.gguf
FormatQ4_0 from the Q8_0 (one rounding pass), 20283.30 MiB tensor data (4.54 BPW)
Where frommade here 2026-09-11
Statusdeleted 2026-09-11 15:51Z

How it was made

llama.cpp-k2horizon/build/bin/llama-quantize --allow-requantize K2-Horizon-36B-A4B-Q8_0.gguf models/_q40test/K2-36B__cleanQ4_0.gguf Q4_0
  • Tool: k2horizon fork @ 35999d1 (build 20).
  • Date: 2026-09-11, ~14:14–14:44Z.
  • Size: 20283.30 MiB tensor data (4.54 BPW), 19.81 GiB per llama-bench; du -h 20G. Exact bytes and sha256 not on record.
  • Who asked / why: Alan, 14:12Z: "should we get the base model and requant to q4_0". The assistant used the Q8_0 already on disk rather than re-downloading the BF16. Script header: "A Q8_0 -> Q4_0 uniform, byte-aligned"; "These come off the Q8_0 on disk: one pass, much closer to a clean quantisation"

How it was served

labeldates (UTC)binary and versionctx / -np / KV / -fa / --jinja / --reasoning-formatharness profilewhy this label exists
— (no run-log label)2026-09-11 (attempted only)fork llama-server, 0.3.0-dev (build 20, commit 35999d1)131072 / 1 / q8_0 / on / not on the line / deepseekextraction (nullschema attempted)the run aborted at the harness schema probe before any case was written, so no label exists (identical retry, "quality run failed twice")

Seats held: none.

Decisions

  • Made to test whether a cleaner Q4_0 beats the double-rounded one on nullschema.
  • Deleted unscored 2026-09-11 15:51Z, under Alan's "you can do 1 - 5". The deletion line read "removed 40 GB of unvalidated variants", one of the two Q8-sourced builds. Earlier, at 15:14Z, both had been kept through the disk sweep ("keep: …") under Alan's "keep any q4_0 and drafters".
  • Not published.

What went wrong

  • Harness schema-probe abort. nullschema died before writing a case: "RuntimeError: schema probe returned only reasoning_content and no content -- the model is still thinking. Raise max_tokens" (identical retry, "quality run failed twice"). The double-rounded Q4_0 passed the same probe with the same flags. That made this a provenance-dependent behaviour difference the session could not explain. It cost the only clean-vs-double-rounded quality comparison; nothing fixed it before deletion.
  • Missing flag (standing check): the server line had no --jinja. Whether that contributed to the probe failure is not on record.

What happened to it

Requantised here 2026-09-11 → speed-benched → quality run aborted → deleted 2026-09-11 15:51Z. No RESTORE-deleted-*.sh entry. Re-creatable from a Q8_0 made from IFM's BF16 (K2-Horizon-36B-A4B BF16 GGUF (downloaded from IFM, rev c8dde8bc) → K2-Horizon-36B-A4B Q8_0 (quantised here from IFM's BF16) → the command above).