diff --git a/bricks/agent.js b/bricks/agent.js
index 04072c2..60f4a6e 100644
--- a/bricks/agent.js
+++ b/bricks/agent.js
@@ -310,7 +310,7 @@ bricks.AgentIO = class extends bricks.VBox {
 			width: '100%',
 			css: 'filler'
 		});
-		this.inputw = new bricks.TextFiles({});
+		this.inputw = new bricks.AgentInput({model_dataurl:this.opts.model_dataurl,model_cwidth:this.opts.model_cwidth,placeholder:this.opts.placeholder});
 		this.inputw.bind('inputed', this.user_inputed.bind(this));
 		this.add_widget(this.msg_box);
 		this.add_widget(this.inputw);
diff --git a/bricks/agent_input.js b/bricks/agent_input.js
new file mode 100644
index 0000000..8786a52
--- /dev/null
+++ b/bricks/agent_input.js
@@ -0,0 +1,123 @@
+// AgentInput — 集成模型选择的输入控件
+// options: { model_dataurl, model_cwidth, placeholder, url(提交图标), ...VBox 原有属性 }
+// event: inputed → { prompt, add_files, model_id }
+
+bricks.AgentInput = class extends bricks.VBox {
+    constructor(opts) {
+        opts.height = 'auto';
+        opts.width = '100%';
+        super(opts);
+
+        // file upload
+        this.inputfilew = new bricks.UiFile({name: 'add_file'});
+        this.filesbar = new bricks.DynamicColumn({col_cwidth: 10});
+        this.add_files = [];
+        this.file_names = [];
+        this.inputfilew.bind('changed', this.file_added.bind(this));
+
+        // text input
+        this.textw = new bricks.UiText({
+            name: 'prompt',
+            placeholder: opts.placeholder || ''
+        });
+
+        // model selector — 直接用 UiCode，不用 Form
+        this.model_selector = new bricks.UiCode({
+            name: 'model_id',
+            valueField: 'model_id',
+            textField: 'model_id_text',
+            dataurl: opts.model_dataurl || '',
+            params: opts.model_params || {},
+            cwidth: opts.model_cwidth || 12,
+            cfontsize: 0.85
+        });
+
+        // add file button
+        var addfilew = new bricks.Svg({
+            cwidth: 1.5, cheight: 1.5,
+            url: bricks_resource('imgs/add.svg')
+        });
+        addfilew.bind('click', this.add_file.bind(this));
+
+        // submit button
+        var inputw = new bricks.Svg({
+            cwidth: 1.5, cheight: 1.5,
+            url: opts.url || bricks_resource('imgs/submit.svg')
+        });
+        inputw.bind('click', this.input_finished.bind(this));
+
+        // button row: [+add] [model_selector] [filler] [submit]
+        var hbox = new bricks.HBox({cheight: 1.5, gap: '4px', alignItems: 'center'});
+        hbox.add_widget(addfilew);
+        hbox.add_widget(this.model_selector);
+        hbox.add_widget(new bricks.VBox({css: 'filler'}));
+        hbox.add_widget(inputw);
+
+        // assemble
+        this.add_widget(this.inputfilew);
+        this.add_widget(this.filesbar);
+        this.add_widget(this.textw);
+        this.add_widget(hbox);
+
+        this.filesbar.hide();
+        this.inputfilew.hide();
+    }
+
+    input_finished() {
+        var txt = this.textw.getValue();
+        if (!txt.prompt || txt.prompt.length < 1) return;
+        var p = this.params || {};
+        var mv = this.model_selector.getValue();
+        // UiCode 的 getValue 可能返回对象也可能返回字符串，统一提取
+        var mid = '';
+        if (typeof mv === 'object' && mv !== null) {
+            mid = mv.model_id || mv.value || '';
+        } else {
+            mid = mv || '';
+        }
+        var d = Object.assign({}, p, {
+            add_files: this.add_files,
+            file_names: this.file_names,
+            prompt: txt.prompt,
+            model_id: mid
+        });
+        this.dispatch('inputed', d);
+        this.textw.setValue('');
+        this.add_files = [];
+        this.file_names = [];
+        this.filesbar.clear_widgets();
+        this.filesbar.hide();
+    }
+
+    file_added(e) {
+        this.inputfilew.hide();
+        var file = this.inputfilew.getValue().add_file;
+        this.inputfilew.reset();
+        this.add_files.push(file);
+        this.file_names.push(file.name);
+        this.filesbar.clear_widgets();
+        var w = new bricks.DeletableLabel({label: file.name});
+        this.filesbar.add_widget(w);
+        this.filesbar.show();
+        w.bind('deleted', this.deleted_file.bind(this, file));
+    }
+
+    deleted_file(file) {
+        this.add_files = this.add_files.filter(i => i !== file);
+        this.file_names = this.file_names.filter(n => n !== file.name);
+        if (this.add_files.length === 0) this.filesbar.hide();
+    }
+
+    add_file() {
+        this.inputfilew.show();
+    }
+
+    getValue() {
+        return {
+            prompt: (this.textw.getValue() || {}).prompt || '',
+            model_id: this.model_selector.getValue() || ''
+        };
+    }
+};
+
+bricks.Factory.register('AgentInput', bricks.AgentInput);
diff --git a/bricks/build.sh b/bricks/build.sh
index 49b30e6..4e7a9cb 100755
--- a/bricks/build.sh
+++ b/bricks/build.sh
@@ -13,7 +13,7 @@ SOURCES=" page_data_loader.js factory.js uitypesdef.js utils.js uitype.js \
 	line.js pie.js bar.js gobang.js period.js iconbarpage.js \
 	keypress.js asr.js webspeech.js countdown.js progressbar.js \
 	qaframe.js svg.js videoplayer.js scatter.js radar.js kline.js \
-	heatmap.js map.js qr.js textfiles.js agent.js api_doc.js flipcard.js carousel.js draggable.js "
+	heatmap.js map.js qr.js textfiles.js agent_input.js agent.js api_doc.js flipcard.js carousel.js draggable.js "
 echo ${SOURCES}
 cat ${SOURCES} > ../dist/bricks.js
 # uglifyjs --compress --mangle -- ../dist/bricks.js > ../dist/bricks.min.js