diff --git a/llama.cpp b/llama.cpp
index 6427fbe4a..5360f13ce 100644
--- a/llama.cpp
+++ b/llama.cpp
@@ -12468,7 +12468,7 @@ static ggml_type llama_tensor_get_type(quantize_state_internal & qs, ggml_type n
             }
             else if (ftype == LLAMA_FTYPE_MOSTLY_IQ1_XS) {
                 if (qs.model.hparams.n_expert >= 2) new_type = GGML_TYPE_Q2_K;
-                new_type = GGML_TYPE_IQ2_S;
+                else new_type = GGML_TYPE_IQ2_S;
             }
             else if (ftype == LLAMA_FTYPE_MOSTLY_IQ2_S || ftype == LLAMA_FTYPE_MOSTLY_IQ2_M) {
                 new_type = GGML_TYPE_IQ3_S;
@@ -12477,6 +12477,35 @@ static ggml_type llama_tensor_get_type(quantize_state_internal & qs, ggml_type n
                 new_type = GGML_TYPE_IQ3_S;
             }
         }
+    } else if (ftype == LLAMA_FTYPE_MOSTLY_IQ1_XS) {
+        if (name.find("attn_q.weight") != std::string::npos) {
+            if (qs.model.hparams.n_expert >= 2) new_type = GGML_TYPE_IQ2_S;
+        }
+        if (name.find("attn_k.weight") != std::string::npos) {
+            if (qs.model.hparams.n_expert >= 8) new_type = GGML_TYPE_IQ4_XS;
+            else if (qs.model.hparams.n_expert >= 4) new_type = GGML_TYPE_IQ3_S;
+            else if (qs.model.hparams.n_expert >= 2) new_type = GGML_TYPE_IQ3_XXS;	
+            else if (qs.model.hparams.n_gqa() >= 4) new_type = GGML_TYPE_IQ2_XS;
+            else if (qs.model.hparams.n_gqa() >= 2) new_type = GGML_TYPE_IQ2_XXS;
+        }
+        else if (name.find("attn_v.weight") != std::string::npos) {
+            if (qs.model.hparams.n_expert >= 8) new_type = GGML_TYPE_IQ4_XS;
+            else if (qs.model.hparams.n_gqa() >= 8 || qs.model.hparams.n_expert >= 4) new_type = GGML_TYPE_IQ4_XS;
+            else if (qs.model.hparams.n_gqa() >= 4 || qs.model.hparams.n_expert >= 2) new_type = GGML_TYPE_IQ3_S;
+            else if (qs.model.hparams.n_gqa() >= 2) new_type = GGML_TYPE_IQ3_XXS;
+            else new_type = GGML_TYPE_Q2_K;
+            ++qs.i_attention_wv;
+        }
+        else if (name.find("attn_output.weight") != std::string::npos) {
+            if (qs.model.hparams.n_expert >= 8) new_type = GGML_TYPE_IQ4_XS;
+            else if (qs.model.hparams.n_expert >= 4) new_type = GGML_TYPE_IQ3_S;
+            else if (qs.model.hparams.n_expert >= 2) new_type = GGML_TYPE_IQ3_XXS;
+            else new_type = GGML_TYPE_IQ2_XXS;
+        }
+        else if (name.find("attn_qkv.weight") != std::string::npos) {
+            if (qs.model.hparams.n_expert >= 2) new_type = GGML_TYPE_IQ4_XS;
+            else new_type = GGML_TYPE_Q2_K;
+        }
     } else if (ftype == LLAMA_FTYPE_MOSTLY_IQ2_XXS || ftype == LLAMA_FTYPE_MOSTLY_IQ2_XS || ftype == LLAMA_FTYPE_MOSTLY_IQ1_S ||
                ftype == LLAMA_FTYPE_MOSTLY_IQ2_S || ftype == LLAMA_FTYPE_MOSTLY_IQ2_M) {
         if (name.find("attn_v.weight") != std::string::npos) {