diff --git a/core/src/main/java/com/google/adk/models/GeminiLlmConnection.java b/core/src/main/java/com/google/adk/models/GeminiLlmConnection.java
index 35dadd9fd..06f5b1b11 100644
--- a/core/src/main/java/com/google/adk/models/GeminiLlmConnection.java
+++ b/core/src/main/java/com/google/adk/models/GeminiLlmConnection.java
@@ -41,6 +41,7 @@
 import io.reactivex.rxjava3.processors.PublishProcessor;
 import java.net.SocketException;
 import java.util.List;
+import java.util.Locale;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
@@ -287,9 +288,18 @@ private List<FunctionResponse> extractFunctionResponses(Content content) {
   public Completable sendRealtime(Blob blob) {
     return Completable.fromFuture(
         sessionFuture.thenCompose(
-            session ->
-                session.sendRealtimeInput(
-                    LiveSendRealtimeInputParameters.builder().media(blob).build())));
+            session -> session.sendRealtimeInput(buildRealtimeInputParameters(blob))));
+  }
+
+  static LiveSendRealtimeInputParameters buildRealtimeInputParameters(Blob blob) {
+    LiveSendRealtimeInputParameters.Builder builder = LiveSendRealtimeInputParameters.builder();
+    String mimeType = blob.mimeType().orElse("").toLowerCase(Locale.ROOT);
+    if (mimeType.startsWith("video/") || mimeType.startsWith("image/")) {
+      builder.video(blob);
+    } else {
+      builder.audio(blob);
+    }
+    return builder.build();
   }
 
   /** Helper to send client content parameters. */
diff --git a/core/src/main/java/com/google/adk/models/OllamaBaseLM.java b/core/src/main/java/com/google/adk/models/OllamaBaseLM.java
index abd6126c7..9f60c592e 100644
--- a/core/src/main/java/com/google/adk/models/OllamaBaseLM.java
+++ b/core/src/main/java/com/google/adk/models/OllamaBaseLM.java
@@ -336,6 +336,9 @@ public Flowable<LlmResponse> generateContent(LlmRequest llmRequest, boolean stre
     if (usageMetadata != null) {
       responseBuilder.usageMetadata(usageMetadata);
     }
+    // Populate modelVersion so downstream token logging (e.g. rae_tokens) can resolve
+    // the model name instead of falling back to "unknown".
+    responseBuilder.modelVersion(this.model());
 
     return Flowable.just(responseBuilder.build());
   }
@@ -590,6 +593,7 @@ private Flowable<LlmResponse> createRobustStreamingResponse(
                 if (usageMetadata != null) {
                   aggregatedResponseBuilder.usageMetadata(usageMetadata);
                 }
+                aggregatedResponseBuilder.modelVersion(this.model());
 
                 responsesToEmit.add(aggregatedResponseBuilder.build());
               }
@@ -612,6 +616,7 @@ private Flowable<LlmResponse> createRobustStreamingResponse(
                   if (usageMetadata != null) {
                     functionResponseBuilder.usageMetadata(usageMetadata);
                   }
+                  functionResponseBuilder.modelVersion(this.model());
 
                   responsesToEmit.add(functionResponseBuilder.build());
                 } catch (Exception funcEx) {
@@ -653,6 +658,7 @@ private LlmResponse createTextResponse(String text, boolean partial) {
     return LlmResponse.builder()
         .content(Content.builder().role("model").parts(Part.fromText(text)).build())
         .partial(partial)
+        .modelVersion(this.model())
         .build();
   }
 
@@ -1276,4 +1282,4 @@ public static void main(String[] args) {
       e.printStackTrace();
     }
   }
-}
+}
\ No newline at end of file
diff --git a/core/src/test/java/com/google/adk/models/GeminiLlmConnectionTest.java b/core/src/test/java/com/google/adk/models/GeminiLlmConnectionTest.java
index b15a65852..cd1d41de2 100644
--- a/core/src/test/java/com/google/adk/models/GeminiLlmConnectionTest.java
+++ b/core/src/test/java/com/google/adk/models/GeminiLlmConnectionTest.java
@@ -20,9 +20,11 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
+import com.google.genai.types.Blob;
 import com.google.genai.types.Content;
 import com.google.genai.types.FunctionCall;
 import com.google.genai.types.GenerateContentResponseUsageMetadata;
+import com.google.genai.types.LiveSendRealtimeInputParameters;
 import com.google.genai.types.LiveServerContent;
 import com.google.genai.types.LiveServerMessage;
 import com.google.genai.types.LiveServerSetupComplete;
@@ -39,6 +41,30 @@
 @RunWith(JUnit4.class)
 public final class GeminiLlmConnectionTest {
 
+  @Test
+  public void buildRealtimeInputParameters_withAudioBlob_usesAudioField() {
+    Blob blob = Blob.builder().mimeType("audio/pcm;rate=16000").data(new byte[] {1, 2}).build();
+
+    LiveSendRealtimeInputParameters parameters =
+        GeminiLlmConnection.buildRealtimeInputParameters(blob);
+
+    assertThat(parameters.audio()).hasValue(blob);
+    assertThat(parameters.video()).isEmpty();
+    assertThat(parameters.media()).isEmpty();
+  }
+
+  @Test
+  public void buildRealtimeInputParameters_withVideoBlob_usesVideoField() {
+    Blob blob = Blob.builder().mimeType("video/mp4").data(new byte[] {1, 2}).build();
+
+    LiveSendRealtimeInputParameters parameters =
+        GeminiLlmConnection.buildRealtimeInputParameters(blob);
+
+    assertThat(parameters.video()).hasValue(blob);
+    assertThat(parameters.audio()).isEmpty();
+    assertThat(parameters.media()).isEmpty();
+  }
+
   @Test
   public void convertToServerResponse_withInterruptedTrue_mapsInterruptedField() {
     LiveServerContent serverContent =