diff --git a/agents-flex-core/src/main/java/com/agentsflex/core/llm/embedding/EmbeddingModel.java b/agents-flex-core/src/main/java/com/agentsflex/core/llm/embedding/EmbeddingModel.java
new file mode 100644
index 0000000..8cd481c
--- /dev/null
+++ b/agents-flex-core/src/main/java/com/agentsflex/core/llm/embedding/EmbeddingModel.java
@@ -0,0 +1,45 @@
+/*
+ *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package com.agentsflex.core.llm.embedding;
+
+import com.agentsflex.core.document.Document;
+import com.agentsflex.core.llm.exception.LlmException;
+import com.agentsflex.core.store.VectorData;
+
+public interface EmbeddingModel {
+
+    default VectorData embed(String text) {
+        return embed(Document.of(text), EmbeddingOptions.DEFAULT);
+    }
+
+    default VectorData embed(Document document) {
+        return embed(document, EmbeddingOptions.DEFAULT);
+    }
+
+    VectorData embed(Document document, EmbeddingOptions options);
+
+    default int dimensions() {
+        VectorData vectorData = embed(Document.of("agents-flex"));
+        if (vectorData == null) {
+            throw new LlmException("Embedding model does not contain vector data, maybe config is not correct.");
+        }
+        double[] vector = vectorData.getVector();
+        if (vector == null || vector.length == 0) {
+            throw new LlmException("Embedding model does not contain vector data, maybe config is not correct.");
+        }
+        return vector.length;
+    }
+}