model: Add Kimi-K2.5 support (#19170)

* Move dequant_model to after the text_config merge
Add new kimi-k2.5 keys to mtmd convert
Update V_MMPROJ tensor mapping for new mm_projector.proj keys
Update V_M_IMP_NORM for new mm_projector.pre_norm key

* Fix a couple of oversights

* Add image support for Kimi-K2.5

* Revert changes to KimiVLForConditionalGeneration

* Fix an assert crash

* Fix permute swapping w / h on accident

* Kimi-K2.5: Use merged QKV for vision

* Kimi-K2.5: pre-convert vision QK to use build_rope_2d

* Kimi-K2.5: support non-interleaved rope for vision

* Kimi-K2.5: fix min / max pixel

* Kimi-K2.5: remove v/o permutes, unnecessary

* Kimi-K2.5: update permute name to match

* Update convert_hf_to_gguf.py

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

* Kimi-K2.5: replace build_rope_2d ggml_cont with ggml_view_3d pointers

---------

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

gguf-py/gguf/constants.py

@@ -3766,6 +3766,7 @@ class VisionProjectorType:
     VOXTRAL = "voxtral"
     LFM2 = "lfm2"
     KIMIVL = "kimivl"
+    KIMIK25 = "kimik25"
     LIGHTONOCR = "lightonocr"
     COGVLM = "cogvlm"
     JANUS_PRO = "janus_pro"

gguf-py/gguf/tensor_mapping.py

@@ -1303,6 +1303,7 @@ class TensorNameMap:
 
         MODEL_TENSOR.V_MMPROJ: (
             "multi_modal_projector.linear_{bid}",
+            "mm_projector.proj.linear_{bid}", # Kimi-K2.5
             "visual.merger.mlp.{bid}", # qwen2vl
             "merger.mlp.{bid}",
         ),
@@ -1364,6 +1365,7 @@ class TensorNameMap:
         MODEL_TENSOR.V_ENC_ATTN_QKV: (
             "visual.blocks.{bid}.attn.qkv", # qwen3vl
             "model.vision.transformer.layers.{bid}.attention.query_key_value", # cogvlm
+            "vision_tower.encoder.blocks.{bid}.wqkv" # Kimi-K2.5
         ),
 
         MODEL_TENSOR.V_ENC_ATTN_Q: (
@@ -1538,6 +1540,7 @@ class TensorNameMap:
             "multi_modal_projector.norm",
             "multi_modal_projector.layer_norm",
             "multi_modal_projector.pre_norm",
+            "mm_projector.pre_norm", # Kimi-K2.5
             "pre_mm_projector_norm",
             "model.vision.linear_proj.norm1", # cogvlm
             "merger.ln_q",