diff --git a/src/main/java/io/github/ollama4j/utils/OptionsBuilder.java b/src/main/java/io/github/ollama4j/utils/OptionsBuilder.java
index c71818a..4148170 100644
--- a/src/main/java/io/github/ollama4j/utils/OptionsBuilder.java
+++ b/src/main/java/io/github/ollama4j/utils/OptionsBuilder.java
@@ -1,5 +1,6 @@
 package io.github.ollama4j.utils;
 
+import java.io.IOException;
 import java.util.HashMap;
 
 /** Builder class for creating options for Ollama model. */
@@ -207,6 +208,34 @@ public class OptionsBuilder {
     return this;
   }
 
+  /**
+   * Alternative to the top_p, and aims to ensure a balance of qualityand variety. The parameter p
+   * represents the minimum probability for a token to be considered, relative to the probability
+   * of the most likely token. For example, with p=0.05 and the most likely token having a
+   * probability of 0.9, logits with a value less than 0.045 are filtered out. (Default: 0.0)
+   */
+  public OptionsBuilder setMinP(float value) {
+    options.getOptionsMap().put("min_p", value);
+    return this;
+  }
+
+  /**
+   * Allows passing an option not formally supported by the library
+   * @param name The option name for the parameter.
+   * @param value The value for the "{name}" parameter.
+   * @return The updated OptionsBuilder.
+   * @throws IllegalArgumentException if parameter has an unsupported type
+   */
+  public OptionsBuilder setCustomOption(String name, Object value) throws IllegalArgumentException {
+    if (!(value instanceof Integer || value instanceof Float || value instanceof String)) {
+      throw new IllegalArgumentException("Invalid type for parameter. Allowed types are: Integer, Float, or String.");
+    }
+    options.getOptionsMap().put(name, value);
+    return this;
+  }
+
+
+
   /**
    * Builds the options map.
    *
@@ -215,4 +244,6 @@ public class OptionsBuilder {
   public Options build() {
     return options;
   }
+
+
 }
diff --git a/src/test/java/io/github/ollama4j/unittests/jackson/TestChatRequestSerialization.java b/src/test/java/io/github/ollama4j/unittests/jackson/TestChatRequestSerialization.java
index 2391a94..2ce210c 100644
--- a/src/test/java/io/github/ollama4j/unittests/jackson/TestChatRequestSerialization.java
+++ b/src/test/java/io/github/ollama4j/unittests/jackson/TestChatRequestSerialization.java
@@ -1,6 +1,7 @@
 package io.github.ollama4j.unittests.jackson;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrowsExactly;
 
 import java.io.File;
 import java.util.List;
@@ -59,6 +60,10 @@ public class TestChatRequestSerialization extends AbstractSerializationTest<Olla
             .withOptions(b.setSeed(1).build())
             .withOptions(b.setTopK(1).build())
             .withOptions(b.setTopP(1).build())
+            .withOptions(b.setMinP(1).build())
+            .withOptions(b.setCustomOption("cust_float", 1.0f).build())
+            .withOptions(b.setCustomOption("cust_int", 1).build())
+            .withOptions(b.setCustomOption("cust_str", "custom").build())
             .build();
 
         String jsonRequest = serialize(req);
@@ -72,6 +77,20 @@ public class TestChatRequestSerialization extends AbstractSerializationTest<Olla
         assertEquals(1, deserializeRequest.getOptions().get("seed"));
         assertEquals(1, deserializeRequest.getOptions().get("top_k"));
         assertEquals(1.0, deserializeRequest.getOptions().get("top_p"));
+        assertEquals(1.0, deserializeRequest.getOptions().get("min_p"));
+        assertEquals(1.0, deserializeRequest.getOptions().get("cust_float"));
+        assertEquals(1, deserializeRequest.getOptions().get("cust_int"));
+        assertEquals("custom", deserializeRequest.getOptions().get("cust_str"));
+    }
+
+    @Test
+    public void testRequestWithInvalidCustomOption() {
+        OptionsBuilder b = new OptionsBuilder();
+        assertThrowsExactly(IllegalArgumentException.class, () -> {
+                OllamaChatRequest req = builder.withMessage(OllamaChatMessageRole.USER, "Some prompt")
+                .withOptions(b.setCustomOption("cust_obj", new Object()).build())
+                .build();
+        });
     }
 
     @Test