diff --git a/pom.xml b/pom.xml
index 1368031..5aa41e9 100755
--- a/pom.xml
+++ b/pom.xml
@@ -4,13 +4,13 @@
 	<artifactId>lm-lib</artifactId>
 	<groupId>de.extio</groupId>
 	<name>lm-lib</name>
-	<version>1.1.0</version>
+	<version>1.3.0</version>
 	
 	<properties>
 		<java.version>21</java.version>
 		<maven.compiler.source>21</maven.compiler.source>
 		<maven.compiler.target>21</maven.compiler.target>		
-		<spring-boot.version>3.4.2</spring-boot.version>
+		<spring-boot.version>3.4.4</spring-boot.version>
 		<azureai.version>1.0.0-beta.2</azureai.version>
 		<jtokkit.version>1.1.0</jtokkit.version>
 	</properties>
diff --git a/src/main/java/de/extio/lmlib/client/ClientService.java b/src/main/java/de/extio/lmlib/client/ClientService.java
index b8e15e9..9bf2c0f 100755
--- a/src/main/java/de/extio/lmlib/client/ClientService.java
+++ b/src/main/java/de/extio/lmlib/client/ClientService.java
@@ -9,6 +9,7 @@ import org.springframework.stereotype.Service;
 import de.extio.lmlib.client.cached.CachedClient;
 import de.extio.lmlib.client.cached.CachedClientRepository;
 import de.extio.lmlib.profile.ModelCategory;
+import de.extio.lmlib.profile.ModelProfile.ModelProvider;
 import de.extio.lmlib.profile.ModelProfileService;
 
 @Service
@@ -23,6 +24,9 @@ public class ClientService {
 	@Autowired(required = false)
 	private CachedClientRepository cachedClientRepository;
 	
+	@Autowired(required = false)
+	private List<CompletionInterceptor> completionInterceptors;
+	
 	@Cacheable("clients")
 	public Client getClient(final ModelCategory category) {
 		final var modelProfile = this.modelProfileService.getModelProfile(category.getModelProfile());
@@ -30,7 +34,44 @@ public class ClientService {
 				.filter(client -> client.getModelProvider() == modelProfile.modelProvider())
 				.findFirst()
 				.map(client -> this.cachedClientRepository == null ? client : new CachedClient(this.cachedClientRepository, this.modelProfileService, client))
+				.map(client -> this.completionInterceptors == null || this.completionInterceptors.isEmpty() ? client : new InterceptingClient(client, this.completionInterceptors))
 				.orElseThrow(() -> new IllegalStateException("No client found for model profile " + category));
 	}
 	
+	private static class InterceptingClient implements Client {
+		
+		private final Client client;
+		
+		private final List<CompletionInterceptor> completionInterceptors;
+		
+		public InterceptingClient(final Client client, final List<CompletionInterceptor> completionInterceptors) {
+			this.client = client;
+			this.completionInterceptors = completionInterceptors;
+		}
+		
+		@Override
+		public Completion completion(final ModelCategory modelCategory, final String system, final String question, final String fullText) {
+			return this.client.completion(modelCategory, system, question, fullText);
+		}
+		
+		@Override
+		public Completion conversation(final ModelCategory modelCategory, final Conversation conversation_) {
+			Conversation conversation = conversation_;
+			for (final var interceptor : this.completionInterceptors) {
+				conversation = interceptor.before(modelCategory, conversation);
+			}
+			var completion = this.client.conversation(modelCategory, conversation);
+			for (final var interceptor : this.completionInterceptors) {
+				completion = interceptor.after(modelCategory, completion);
+			}
+			return completion;
+		}
+		
+		@Override
+		public ModelProvider getModelProvider() {
+			return this.client.getModelProvider();
+		}
+		
+	}
+	
 }
diff --git a/src/main/java/de/extio/lmlib/client/CompletionInterceptor.java b/src/main/java/de/extio/lmlib/client/CompletionInterceptor.java
new file mode 100644
index 0000000..b0a8196
--- /dev/null
+++ b/src/main/java/de/extio/lmlib/client/CompletionInterceptor.java
@@ -0,0 +1,11 @@
+package de.extio.lmlib.client;
+
+import de.extio.lmlib.profile.ModelCategory;
+
+public interface CompletionInterceptor {
+	
+	Conversation before(ModelCategory modelCategory, Conversation conversation);
+	
+	Completion after(ModelCategory modelCategory, Completion completion);
+	
+}
diff --git a/src/main/java/de/extio/lmlib/prompt/Llama4PromptStrategy.java b/src/main/java/de/extio/lmlib/prompt/Llama4PromptStrategy.java
new file mode 100644
index 0000000..b8dd4d5
--- /dev/null
+++ b/src/main/java/de/extio/lmlib/prompt/Llama4PromptStrategy.java
@@ -0,0 +1,51 @@
+package de.extio.lmlib.prompt;
+
+import org.springframework.stereotype.Component;
+
+/**
+ * @see https://llama.meta.com/docs/model-cards-and-prompt-formats/meta-llama-3
+ */
+@Component
+public class Llama4PromptStrategy implements PromptStrategy {
+	
+	@Override
+	public StringBuilder start(final String system, final String question, final String text) {
+		final StringBuilder prompt = new StringBuilder();
+		prompt.append("<|begin_of_text|>");
+		if (!system.isEmpty()) {
+			prompt.append("<|header_start|>system<|header_end|>\n\n");
+			prompt.append(system);
+			prompt.append("<|eot|>");
+		}
+		prompt.append("<|header_start|>user<|header_end|>\n\n");
+		prompt.append(question);
+		if (!question.isEmpty() && !text.isEmpty()) {
+			prompt.append("\n\n");
+		}
+		prompt.append(text);
+		prompt.append("<|eot|><|header_start|>assistant<|header_end|>\n");
+		
+		return prompt;
+	}
+	
+	@Override
+	public void continue_(final StringBuilder prompt, final String assistant) {
+		this.next(prompt, assistant, "Continue");
+	}
+	
+	@Override
+	public void next(final StringBuilder prompt, final String assistant, final String user) {
+		prompt.append(assistant);
+		prompt.append("<|eot|><|header_start|>user<|header_end|>\n\n" + user + "<|eot|><|header_start|>assistant<|header_end|>\n");
+	}
+	
+	@Override
+	public String removeEOT(final String prompt) {
+		return prompt.strip().replace("<|eot|>", "");
+	}
+	
+	@Override
+	public String getPromptName() {
+		return "llama4";
+	}
+}