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model : support Step3.5-Flash (#19283)

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* Support Step3.5-Flash

* fix: norm.weight + 1 (HF zero_centered=true)

* step35: simplify GGUF conversion + drop redundant rope KVs

* Address review feedback

* rename limits -> clamp

* Apply suggestions from code review

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

* Apply suggestion from @CISC

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

* rename swiglu limits -> swiglu clamp in LLM_KV

* avoid CI fail

* Apply suggestions from code review

* Apply suggestions from code review

* disabled KV shifting for LLM_ARCH_STEP35

* Apply suggestions from code review

* mistakenly removed cmath

* add model size && apply missed suggestion

* assert partial_rotary_factors

* fix CI errors:

* load freq_base_swa

---------

Co-authored-by: lvyichen <lvyichen@stepfun.com>
Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
This commit is contained in:
forforever73
2026-02-06 21:06:14 +01:00
committed by GitHub
co-authored by Sigbjørn Skjæret lvyichen
parent 3228e77287
commit b83111815e
15 changed files with 576 additions and 38 deletions
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gguf-py/gguf/gguf_writer.py
+6
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@@ -824,6 +824,12 @@ class GGUFWriter:
def add_expert_gating_func(self, value: ExpertGatingFuncType) -> None:
self.add_uint32(Keys.LLM.EXPERT_GATING_FUNC.format(arch=self.arch), value.value)
def add_swiglu_clamp_exp(self, values: Sequence[float]) -> None:
self.add_array(Keys.LLM.SWIGLU_CLAMP_EXP.format(arch=self.arch), values)
def add_swiglu_clamp_shexp(self, values: Sequence[float]) -> None:
self.add_array(Keys.LLM.SWIGLU_CLAMP_SHEXP.format(arch=self.arch), values)
def add_expert_group_scale(self, value: float) -> None:
self.add_float32(Keys.LLM.EXPERT_GROUP_SCALE.format(arch=self.arch), value)