mtmd: Add DeepSeekOCR Support

convert_hf_to_gguf.py

@@ -620,6 +620,9 @@ def load_hparams(dir_model: Path, is_mistral_format: bool):
         if "thinker_config" in config:
             # rename for Qwen2.5-Omni
             config["text_config"] = config["thinker_config"]["text_config"]
+        if "language_config" in config:
+            # rename for DeepSeekOCR
+            config["text_config"] = config["language_config"]
         return config
 
     @classmethod
@@ -1442,7 +1445,7 @@ class MmprojModel(ModelBase):
     preprocessor_config: dict[str, Any]
     global_config: dict[str, Any]
 
-    n_block_keys = ["n_layers", "num_hidden_layers", "n_layer", "num_layers", "depth"]
+    n_block_keys = ["n_layers", "num_hidden_layers", "n_layer", "num_layers", "depth", "layers"]
 
     has_vision_encoder: bool = True # by default
     has_audio_encoder: bool = False
@@ -1488,13 +1491,28 @@ def __init__(self, *args, **kwargs):
         # TODO @ngxson : this is a hack to support both vision and audio encoders
         have_multiple_encoders = self.has_audio_encoder and self.has_vision_encoder
         self.block_count = 128 if have_multiple_encoders else self.find_hparam(self.n_block_keys, True)
+        # FIXME: DeepseekOCRVisionModel specific hack
+        if self.block_count is None:
+            if isinstance(self, DeepseekOCRVisionModel):
+                clip_block_count = self.hparams['layers']
+                if clip_block_count is not None:
+                    self.block_count = clip_block_count
+            if self.block_count is None:
+                raise KeyError(f"could not find block count using any of: {self.n_block_keys}")
         self.tensor_map = gguf.get_tensor_name_map(gguf.MODEL_ARCH.MMPROJ, self.block_count)
 
         # load preprocessor config
         self.preprocessor_config = {}
         if not self.is_mistral_format:
-            with open(self.dir_model / "preprocessor_config.json", "r", encoding="utf-8") as f:
-                self.preprocessor_config = json.load(f)
+            # check if preprocessor_config.json exists
+            if (self.dir_model / "preprocessor_config.json").is_file():
+                with open(self.dir_model / "preprocessor_config.json", "r", encoding="utf-8") as f:
+                    self.preprocessor_config = json.load(f)
+            else:
+                # try "processing_config" file if exists
+                if (self.dir_model / "processing_config.json").is_file():
+                    with open(self.dir_model / "processing_config.json", "r", encoding="utf-8") as f:
+                        self.preprocessor_config = json.load(f)
 
     def get_vision_config(self) -> dict[str, Any] | None:
         config_name = "vision_config" if not self.is_mistral_format else "vision_encoder"
@@ -5770,6 +5788,97 @@ def modify_tensors(self, data_torch: Tensor, name: str, bid: int | None) -> Iter
 
         return [] # skip other tensors
 
+@ModelBase.register("DeepseekOCRForCausalLM")
+class DeepseekOCRVisionModel(MmprojModel):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        proc_fname = self.dir_model / "processor_config.json"
+
+        if proc_fname.is_file():
+            with open(proc_fname, "r") as f:
+                self.preprocessor_config = json.load(f)
+
+
+    def set_gguf_parameters(self):
+        super().set_gguf_parameters()
+        hparams = self.hparams
+        self.gguf_writer.add_clip_projector_type(gguf.VisionProjectorType.DEEPSEEKOCR)
+        # default values below are taken from HF tranformers code
+        self.gguf_writer.add_vision_attention_layernorm_eps(hparams.get("layer_norm_eps", 1e-6))
+        self.gguf_writer.add_vision_use_gelu(True)
+        # calculate proj_scale_factor (used by tinygemma3 test model)
+        image_seq_length = self.preprocessor_config.get("image_seq_length", 256)
+        n_per_side = int(image_seq_length ** 0.5)
+        image_size = self.hparams["image_size"]
+        patch_size = self.hparams["patch_size"]
+        proj_scale_factor = (image_size // patch_size) // n_per_side
+        if proj_scale_factor > 0 and proj_scale_factor != 4:
+            # we only need to write this if it's not the default value
+            # in this case, we are converting a test model
+            self.gguf_writer.add_vision_projector_scale_factor(proj_scale_factor)
+
+        # SAM configuration
+        sam_hparams = hparams['sam']
+        self.gguf_writer.add_vision_sam_layers_count(sam_hparams['layers'])
+        self.gguf_writer.add_vision_sam_embedding_length(sam_hparams['width'])
+
+    def get_vision_config(self) -> dict[str, Any]:
+        vision_config: dict[str, Any] | None = self.global_config.get("vision_config")
+
+        if not vision_config:
+            raise ValueError("DeepseekOCR model requires 'vision_config' in the model configuration, but it was not found")
+
+        vision_config['sam'] = vision_config['width']['sam_vit_b']
+        vision_config.update(vision_config['width']['clip-l-14-224'])
+        vision_config['hidden_size'] = vision_config['width']
+        vision_config['num_heads'] = vision_config['heads']
+        vision_config['intermediate_size'] = vision_config['heads'] * 4
+
+        return vision_config
+
+
+    def tensor_force_quant(self, name, new_name, bid, n_dims):
+        # related to https://github.com/ggml-org/llama.cpp/issues/13025
+        if "input_projection" in name:
+            return gguf.GGMLQuantizationType.F16
+        if ".embeddings." in name:
+            return gguf.GGMLQuantizationType.F32
+        return super().tensor_force_quant(name, new_name, bid, n_dims)
+
+    def modify_tensors(self, data_torch: Tensor, name: str, bid: int | None) -> Iterable[tuple[str, Tensor]]:
+        # Only process vision-related tensors, skip language model tensors
+        # Vision components: sam_model, vision_model, projector, image_newline, view_seperator
+        # Language model components to skip: lm_head, embed_tokens, layers, norm
+        if name.startswith(("lm_head.", "model.embed_tokens.", "model.layers.", "model.norm.")):
+            return []
+
+        if ".attn.rel_pos_h" in name or ".attn.rel_pos_w" in name:
+            return [(self.map_tensor_name(name, try_suffixes=("",)), data_torch)]
+
+        if name.startswith("model.vision_model.transformer.layers."):
+            # process visual tensors
+            # split QKV tensors if needed
+            if ".qkv_proj." in name:
+                if data_torch.ndim == 2: # weight
+                    c3, _ = data_torch.shape
+                else: # bias
+                    c3 = data_torch.shape[0]
+                assert c3 % 3 == 0
+                c = c3 // 3
+                wq = data_torch[:c]
+                wk = data_torch[c: c * 2]
+                wv = data_torch[c * 2:]
+                return [
+                    (self.map_tensor_name(name.replace("qkv", "q")), wq),
+                    (self.map_tensor_name(name.replace("qkv", "k")), wk),
+                    (self.map_tensor_name(name.replace("qkv", "v")), wv),
+                ]
+            else:
+                return [(self.map_tensor_name(name), data_torch)]
+
+        return [(self.map_tensor_name(name), data_torch)]
+
 
 @ModelBase.register("Gemma3nForConditionalGeneration")
 class Gemma3NModel(Gemma3Model):
@@ -6943,6 +7052,7 @@ def prepare_tensors(self):
 @ModelBase.register(
     "DeepseekV2ForCausalLM",
     "DeepseekV3ForCausalLM",
+    "DeepseekOCRForCausalLM",
     "KimiVLForConditionalGeneration",
 )
 class DeepseekV2Model(TextModel):
@@ -7003,52 +7113,64 @@ def set_vocab(self):
             raise NotImplementedError(f"Deepseek pre-tokenizer {tokpre!r} is not supported yet!")
 
     def set_gguf_parameters(self):
+        is_ocr = (self.hparams["num_hidden_layers"] == 12)
 
-        # note: deepseek2 using MLA converts into MQA (ie: GQA with 1 group)
-        self.hparams["num_key_value_heads"] = 1
+        if is_ocr:
+            self.hparams['rope_theta'] = self.hparams.get('rope_theta', 10000.0)
+            self.hparams['rms_norm_eps'] = self.hparams.get('rms_norm_eps', 1e-6)
+        else:
+            # note: deepseek2 using MLA converts into MQA (ie: GQA with 1 group)
+            self.hparams["num_key_value_heads"] = 1
 
         super().set_gguf_parameters()
         hparams = self.hparams
+        kv_lora_rank = hparams["q_lora_rank"] if hparams["q_lora_rank"] is not None else 512
+        routed_scaling_factor = hparams.get("routed_scaling_factor", 1.0)
+        norm_topk_prob = hparams.get("norm_topk_prob", False)
+        scoring_func = hparams.get("scoring_func", "softmax")
 
         self.gguf_writer.add_leading_dense_block_count(hparams["first_k_dense_replace"])
         self.gguf_writer.add_vocab_size(hparams["vocab_size"])
         if "q_lora_rank" in hparams and hparams["q_lora_rank"] is not None:
             self.gguf_writer.add_q_lora_rank(hparams["q_lora_rank"])
-        self.gguf_writer.add_kv_lora_rank(hparams["kv_lora_rank"])
+        if "kv_lora_rank" in hparams and hparams["kv_lora_rank"] is not None:
+            self.gguf_writer.add_kv_lora_rank(kv_lora_rank)
 
         # note: deepseek2 using MLA converts into MQA with larger heads, then decompresses to MHA
-        self.gguf_writer.add_key_length(hparams["kv_lora_rank"] + hparams["qk_rope_head_dim"])
-        self.gguf_writer.add_value_length(hparams["kv_lora_rank"])
-        self.gguf_writer.add_key_length_mla(hparams["qk_nope_head_dim"] + hparams["qk_rope_head_dim"])
-        self.gguf_writer.add_value_length_mla(hparams["v_head_dim"])
+        if not is_ocr:
+            self.gguf_writer.add_key_length(kv_lora_rank + hparams["qk_rope_head_dim"])
+            self.gguf_writer.add_value_length(kv_lora_rank)
+            self.gguf_writer.add_key_length_mla(hparams["qk_nope_head_dim"] + hparams["qk_rope_head_dim"])
+            self.gguf_writer.add_value_length_mla(hparams["v_head_dim"])
+            self.gguf_writer.add_rope_dimension_count(hparams["qk_rope_head_dim"])
 
         self.gguf_writer.add_expert_feed_forward_length(hparams["moe_intermediate_size"])
         self.gguf_writer.add_expert_count(hparams["n_routed_experts"])
         self.gguf_writer.add_expert_shared_count(hparams["n_shared_experts"])
-        self.gguf_writer.add_expert_weights_scale(hparams["routed_scaling_factor"])
-        self.gguf_writer.add_expert_weights_norm(hparams["norm_topk_prob"])
+        self.gguf_writer.add_expert_weights_scale(routed_scaling_factor)
+        self.gguf_writer.add_expert_weights_norm(norm_topk_prob)
 
-        if hparams["scoring_func"] == "sigmoid":
+        if scoring_func == "sigmoid":
             self.gguf_writer.add_expert_gating_func(gguf.ExpertGatingFuncType.SIGMOID)
-        elif hparams["scoring_func"] == "softmax":
+        elif scoring_func == "softmax":
             self.gguf_writer.add_expert_gating_func(gguf.ExpertGatingFuncType.SOFTMAX)
         else:
-            raise ValueError(f"Unsupported scoring_func value: {hparams['scoring_func']}")
-
-        self.gguf_writer.add_rope_dimension_count(hparams["qk_rope_head_dim"])
+            raise ValueError(f"Unsupported scoring_func value: {scoring_func}")
 
         rope_scaling = self.hparams.get("rope_scaling") or {}
         if rope_scaling.get("rope_type", rope_scaling.get("type")) == "yarn" and "factor" in rope_scaling:
             self.gguf_writer.add_rope_scaling_type(gguf.RopeScalingType.YARN)
             self.gguf_writer.add_rope_scaling_factor(rope_scaling["factor"])
             self.gguf_writer.add_rope_scaling_orig_ctx_len(rope_scaling["original_max_position_embeddings"])
             self.gguf_writer.add_rope_scaling_yarn_log_mul(0.1 * rope_scaling["mscale_all_dim"])
+            self.gguf_writer.add_layer_norm_rms_eps(self.hparams.get("rms_norm_eps", 1e-6))
 
     _experts: list[dict[str, Tensor]] | None = None
 
     def modify_tensors(self, data_torch: Tensor, name: str, bid: int | None) -> Iterable[tuple[str, Tensor]]:
         # skip vision tensors and remove "language_model." for Kimi-VL
-        if "vision_tower" in name or "multi_modal_projector" in name:
+        if "vision_" in name or "multi_modal_projector" in name \
+            or "image_newline" in name or "model.projector" in name or "sam_model" in name or "view_seperator" in name:
             return []
 
         if name.startswith("language_model."):

examples/eval-callback/eval-callback.cpp

@@ -74,19 +74,19 @@ static void ggml_print_tensor(uint8_t * data, ggml_type type, const int64_t * ne
         }
     }
     for (int64_t i3 = 0; i3 < ne[3]; i3++) {
-        LOG("                                     [\n");
+        LOG("    [\n");
         for (int64_t i2 = 0; i2 < ne[2]; i2++) {
             if (i2 == n && ne[2] > 2*n) {
-                LOG("                                      ..., \n");
+                LOG("     ..., \n");
                 i2 = ne[2] - n;
             }
-            LOG("                                      [\n");
+            LOG("     [\n");
             for (int64_t i1 = 0; i1 < ne[1]; i1++) {
                 if (i1 == n && ne[1] > 2*n) {
-                    LOG("                                       ..., \n");
+                    LOG("      ..., \n");
                     i1 = ne[1] - n;
                 }
-                LOG("                                       [");
+                LOG("      [");
                 for (int64_t i0 = 0; i0 < ne[0]; i0++) {
                     if (i0 == n && ne[0] > 2*n) {
                         LOG("..., ");
@@ -98,10 +98,10 @@ static void ggml_print_tensor(uint8_t * data, ggml_type type, const int64_t * ne
                 }
                 LOG("],\n");
             }
-            LOG("                                      ],\n");
+            LOG("     ],\n");
         }
-        LOG("                                     ]\n");
-        LOG("                                     sum = %f\n", sum);
+        LOG("    ]\n");
+        LOG("    sum = %f\n", sum);
     }
 
     // TODO: make this abort configurable/optional?
@@ -136,7 +136,7 @@ static bool ggml_debug(struct ggml_tensor * t, bool ask, void * user_data) {
         snprintf(src1_str, sizeof(src1_str), "%s{%s}", src1->name, ggml_ne_string(src1).c_str());
     }
 
-    LOG("%s: %24s = (%s) %10s(%s{%s}, %s}) = {%s}\n", __func__,
+    LOG("%s: %16s = (%s) %10s(%s{%s}, %s}) = {%s}\n", __func__,
          t->name, ggml_type_name(t->type), ggml_op_desc(t),
          src0->name, ggml_ne_string(src0).c_str(),
          src1 ? src1_str : "",

gguf-py/gguf/constants.py

@@ -287,6 +287,10 @@ class Attention:
         class Projector:
             SCALE_FACTOR    = "clip.vision.projector.scale_factor"
 
+        class SAM:
+            BLOCK_COUNT         = "clip.vision.sam.block_count"
+            EMBEDDING_LENGTH    = "clip.vision.sam.embedding_length"
+
     class ClipAudio:
         NUM_MEL_BINS        = "clip.audio.num_mel_bins"
         EMBEDDING_LENGTH    = "clip.audio.embedding_length"
@@ -664,6 +668,22 @@ class MODEL_TENSOR(IntEnum):
     V_MM_GATE            = auto() # cogvlm
     V_TOK_BOI            = auto() # cogvlm
     V_TOK_EOI            = auto() # cogvlm
+    V_SAM_POS_EMBD       = auto() # Deepseek-OCR
+    V_SAM_PATCH_EMBD     = auto() # Deepseek-OCR
+    V_SAM_PRE_NORM       = auto() # Deepseek-OCR
+    V_SAM_POST_NORM      = auto() # Deepseek-OCR
+    V_SAM_ATTN_POS_H     = auto() # Deepseek-OCR
+    V_SAM_ATTN_POS_W     = auto() # Deepseek-OCR
+    V_SAM_ATTN_QKV       = auto() # Deepseek-OCR
+    V_SAM_ATTN_OUT       = auto() # Deepseek-OCR
+    V_SAM_MLP_LIN_1      = auto() # Deepseek-OCR
+    V_SAM_MLP_LIN_2      = auto() # Deepseek-OCR
+    V_SAM_NECK           = auto() # Deepseek-OCR
+    V_SAM_NET_2          = auto() # Deepseek-OCR
+    V_SAM_NET_3          = auto() # Deepseek-OCR
+    V_ENC_EMBD_IMGNL     = auto() # Deepseek-OCR
+    V_ENC_EMBD_VSEP      = auto() # Deepseek-OCR
+
     # audio (mtmd)
     A_ENC_EMBD_POS       = auto()
     A_ENC_CONV1D         = auto()
@@ -1030,6 +1050,22 @@ class MODEL_TENSOR(IntEnum):
     MODEL_TENSOR.V_MM_GATE:                 "mm.gate",
     MODEL_TENSOR.V_TOK_BOI:                 "v.boi",
     MODEL_TENSOR.V_TOK_EOI:                 "v.eoi",
+    # DeepSeek-OCR sam_model
+    MODEL_TENSOR.V_SAM_POS_EMBD:            "v.sam.pos_embd",
+    MODEL_TENSOR.V_SAM_PATCH_EMBD:          "v.sam.patch_embd",
+    MODEL_TENSOR.V_SAM_PRE_NORM:            "v.sam.blk.{bid}.pre_ln",
+    MODEL_TENSOR.V_SAM_POST_NORM:           "v.sam.blk.{bid}.post_ln",
+    MODEL_TENSOR.V_SAM_ATTN_POS_H:          "v.sam.blk.{bid}.attn.pos_h",
+    MODEL_TENSOR.V_SAM_ATTN_POS_W:          "v.sam.blk.{bid}.attn.pos_w",
+    MODEL_TENSOR.V_SAM_ATTN_QKV:            "v.sam.blk.{bid}.attn.qkv",
+    MODEL_TENSOR.V_SAM_ATTN_OUT:            "v.sam.blk.{bid}.attn.out",
+    MODEL_TENSOR.V_SAM_MLP_LIN_1:           "v.sam.blk.{bid}.mlp.lin1",
+    MODEL_TENSOR.V_SAM_MLP_LIN_2:           "v.sam.blk.{bid}.mlp.lin2",
+    MODEL_TENSOR.V_SAM_NECK:                "v.sam.neck.{bid}",
+    MODEL_TENSOR.V_SAM_NET_2:               "v.sam.net_2",
+    MODEL_TENSOR.V_SAM_NET_3:               "v.sam.net_3",
+    MODEL_TENSOR.V_ENC_EMBD_IMGNL:          "model.image_newline", # Deepseek-OCR
+    MODEL_TENSOR.V_ENC_EMBD_VSEP:           "model.view_seperator", # Deepseek-OCR
     # audio (mtmd)
     MODEL_TENSOR.A_ENC_EMBD_POS:            "a.position_embd",
     MODEL_TENSOR.A_ENC_CONV1D:              "a.conv1d.{bid}",
@@ -1066,6 +1102,8 @@ class MODEL_TENSOR(IntEnum):
         MODEL_TENSOR.V_ENC_EMBD_CLS,
         MODEL_TENSOR.V_ENC_EMBD_PATCH,
         MODEL_TENSOR.V_ENC_EMBD_POS,
+        MODEL_TENSOR.V_ENC_EMBD_IMGNL,
+        MODEL_TENSOR.V_ENC_EMBD_VSEP,
         MODEL_TENSOR.V_ENC_INPUT_NORM,
         MODEL_TENSOR.V_ENC_ATTN_QKV,
         MODEL_TENSOR.V_ENC_ATTN_Q,
@@ -1108,6 +1146,19 @@ class MODEL_TENSOR(IntEnum):
         MODEL_TENSOR.V_MM_GATE,
         MODEL_TENSOR.V_TOK_BOI,
         MODEL_TENSOR.V_TOK_EOI,
+        MODEL_TENSOR.V_SAM_POS_EMBD,
+        MODEL_TENSOR.V_SAM_PATCH_EMBD,
+        MODEL_TENSOR.V_SAM_PRE_NORM,
+        MODEL_TENSOR.V_SAM_POST_NORM,
+        MODEL_TENSOR.V_SAM_ATTN_POS_H,
+        MODEL_TENSOR.V_SAM_ATTN_POS_W,
+        MODEL_TENSOR.V_SAM_ATTN_QKV,
+        MODEL_TENSOR.V_SAM_ATTN_OUT,
+        MODEL_TENSOR.V_SAM_MLP_LIN_1,
+        MODEL_TENSOR.V_SAM_MLP_LIN_2,
+        MODEL_TENSOR.V_SAM_NECK,
+        MODEL_TENSOR.V_SAM_NET_2,
+        MODEL_TENSOR.V_SAM_NET_3,
         # audio
         MODEL_TENSOR.A_ENC_EMBD_POS,
         MODEL_TENSOR.A_ENC_CONV1D,
@@ -2247,7 +2298,9 @@ class MODEL_TENSOR(IntEnum):
         MODEL_TENSOR.ATTN_Q_B,
         MODEL_TENSOR.ATTN_KV_A_MQA,
         MODEL_TENSOR.ATTN_KV_B,
+        MODEL_TENSOR.ATTN_K,
         MODEL_TENSOR.ATTN_K_B,
+        MODEL_TENSOR.ATTN_V,
         MODEL_TENSOR.ATTN_V_B,
         MODEL_TENSOR.ATTN_Q_A_NORM,
         MODEL_TENSOR.ATTN_KV_A_NORM,
@@ -3207,6 +3260,7 @@ class VisionProjectorType:
     LIGHTONOCR = "lightonocr"
     COGVLM = "cogvlm"
     JANUS_PRO = "janus_pro"
+    DEEPSEEKOCR = "deepseekocr"
 
 
 # Items here are (block size, type size)