Return back sonnet 3

Author: tiginamaria

koog-ktor/src/commonMain/kotlin/ai/koog/ktor/utils/LLMModelParser.kt

@@ -237,8 +237,11 @@ private val GOOGLE_MODELS_MAP = mapOf(
 )
 
 private val OPENROUTER_MODELS_MAP = mapOf(
-    "claude3sonnet" to OpenRouterModels.Claude3Sonnet,
     "claude3haiku" to OpenRouterModels.Claude3Haiku,
+    "claude3opus" to OpenRouterModels.Claude3Opus,
+    "claude35sonnet" to OpenRouterModels.Claude3_5Sonnet,
+    "claude4sonnet" to OpenRouterModels.Claude4Sonnet,
+    "claude41opus" to OpenRouterModels.Claude4_1Opus,
     "gpt4" to OpenRouterModels.GPT4,
     "gpt4o" to OpenRouterModels.GPT4o,
     "gpt5" to OpenRouterModels.GPT5,

prompt/prompt-executor/prompt-executor-clients/prompt-executor-openrouter-client/src/commonMain/kotlin/ai/koog/prompt/executor/clients/openrouter/OpenRouterModels.kt

@@ -62,6 +62,20 @@ public object OpenRouterModels : LLModelDefinitions {
         maxOutputTokens = 4_096,
     )
 
+    /**
+     * Represents a predefined language model configuration for the "Claude 3 Sonnet" model.
+     *
+     * This variable defines an instance of the `LLModel` class using the `OpenRouter` provider.
+     * The model is identified with the ID "anthropic/claude-3-sonnet" and supports multimodal capabilities.
+     */
+    public val Claude3Sonnet: LLModel = LLModel(
+        provider = LLMProvider.OpenRouter,
+        id = "anthropic/claude-3-sonnet",
+        capabilities = multimodalCapabilities,
+        contextLength = 200_000,
+        maxOutputTokens = 4_096,
+    )
+
     /**
      * Represents the Claude v3 Haiku model provided through the OpenRouter platform.
      *