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Release v4.4: combined runtime, opt-in Boost and measured results
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v4.4 qualification

The exact final-all-v1-pm4 inference binaries and pinned HIP/ROCr were qualified on a 128 GB Strix Halo / gfx1151, NixOS, stock TheRock10 compiler/math. MTP3, F16 target/draft caches, one slot, 262144 context, batch/microbatch 8192, native production thinking for HA20. These are runtime changes; no model artifacts were changed.

Matched IU4 workload v4.3 + S5/D0 control v4.4 combined Change
12960-token incident replay decode 37.79 tok/s 44.53 tok/s +17.84%
Incident prefill 824.28 tok/s 889.13 tok/s +7.87%
245760-token cold decode 7.62 tok/s 21.14 tok/s +177.48%
245760-token prefill 751.15 tok/s 761.25 tok/s +1.35%
Deep cold whole request 394.58 s 347.29 s −11.98%
Cached append decode 7.51 tok/s 20.78 tok/s +176.93%
Cached append whole request 69.73 s 25.84 s −62.95%
Branch B revisit first piece 5.653 s 0.222 s −96.08%

One seven-case final block per arm. The control already includes S5/D0 and is not the plain published v4.3 runtime. No mirrored confidence interval or universal speedup is claimed. Comparable generated texts and draft counters matched; branch A2 is excluded from cross-arm speed claims because the control changed its canonical output. Candidate peak system RAM was 1.275 GiB higher and GTT 91.94 MiB higher.

Numerical evidence: 20 full-vocabulary teacher-forced rows exact, 11 lifecycle rows exact, 11 wide-index oracle cases passed. GDN specialization dispatch was confirmed. These checks qualify the complete IU4 composition; not every included patch has an isolated positive serving effect.

IU4 HumanEval 0–9

Ten canonical prompts, one cold slot per task, greedy nonthinking native chat adapter, natural EOS, no output cap, seed 123. This is a speed panel, not a graded coding accuracy score. Allocated context is 262144; prompts are short.

Setting Pooled timed decode Generated tokens Total request time
Default MTP3 60.351 tok/s 1633 36.057 s
Opt-in Boost + MTP3 64.067 tok/s 1633 33.864 s

Boost improved pooled decode 6.16% in this one follow-up load. Nine outputs were byte-identical; one differed only by quote style and had the same parsed Python AST. Peak per-task Boost decode was 70.95 tok/s (HE3). This does not qualify long thinking, HA20, or Orca with Boost. Dataset SHA256: b796127e635a67f93fb35c04f4cb03cf06f38c8072ee7cee8833d7bee06979ef.

IU4 Hermes Agent 20

One first trajectory per task, frozen 32-turn adapter, production native xhigh thinking, temperature 1, top-p .95, top-k 20, min-p 0, seed 160916, unlimited generation within context. Result: 19/20 full-score tasks; 98.5/100 arithmetic mean (matching the old card's aggregation), 99/100 canonical weighted score. HA17 scored 70 for the same delegation artifact issue seen in both older IU4 runs.

IU4 version / run Arithmetic mean /100 Full-score tasks
Published v4.3, pass 1 95.0 17/20
Published v4.3, pass 2 98.5 19/20
v4.4, one pass 98.5 19/20

Same suite and arithmetic aggregation; historical engines/seeds differ. This comparison does not establish statistical equivalence, lower weight error or a causal quality gain. No new failed scenario appeared. Locked protocol SHA256: 6465f9465b78e9ca0b1456a8dfee2fd6df7e04681c7169dfefed9ebf9e025075. HermesAgent-20 57d7766bf3db8c40696e3ed937d43c8c85f4cd6c; Hermes agent ea74f61d983ebdfd6a863c45761d1b38081f1d08.

Capacity and limitations

A separate native target-only 524288-token prefill measured 604.651 tok/s (867.092 s), after an excluded 8192-token warmup, batch/microbatch16384, F16 cache. Minimum available RAM was 9.750 GiB. No 512K MTP, decode, or quality claim. New-build target-only decode was not measured.

Image+MTP returned the same pending-row error in both control and candidate. Target-only red-square/blue-circle fixtures passed. Keep vision target-only. Boost is optional and lacks a new HA20 run. Model weights/scales/PLE are unchanged, so weight reconstruction error is unchanged.

The shared package is released with IU4's completed qualification. Orca keeps its retained MTP4 default and receives a separate HE0–9 / HA20 release report after its requested checks. IU4 speed figures are not Orca measurements.