Merge pull request #7006 from gaby/2025-08-06-03-24-22

fix: add OpenAI gpt-oss models in Agent mode

Author: RomneyDa

core/llm/toolSupport.ts

@@ -61,6 +61,9 @@ export const PROVIDER_TOOL_SUPPORT: Record<string, (model: string) => boolean> =
       ) {
         return true;
       }
+      if (model.toLowerCase().includes("gpt-oss")) {
+        return true;
+      }
       // https://ai.google.dev/gemma/docs/capabilities/function-calling
       if (model.toLowerCase().startsWith("gemma")) {
         return true;
@@ -174,6 +177,7 @@ export const PROVIDER_TOOL_SUPPORT: Record<string, (model: string) => boolean> =
           "firefunction-v2",
           "mistral",
           "devstral",
+          "gpt-oss",
         ].some((part) => modelName.toLowerCase().includes(part))
       ) {
         return true;
@@ -237,6 +241,7 @@ export const PROVIDER_TOOL_SUPPORT: Record<string, (model: string) => boolean> =
         "openai/o1",
         "openai/o3",
         "openai/o4",
+        "openai/gpt-oss",
         "anthropic/claude-3",
         "anthropic/claude-4",
         "microsoft/phi-3",

gui/src/pages/AddNewModel/configs/models.ts

@@ -87,6 +87,34 @@ export const models: { [key: string]: ModelPackage } = {
     providerOptions: ["novita", "nebius"],
     isOpenSource: true,
   },
+  gptOss20B: {
+    title: "gpt-oss-20b",
+    description:
+      "OpenAI's 20B open-weight model with native tool use and reasoning for agentic tasks.",
+    refUrl: "https://huggingface.co/openai/gpt-oss-20b",
+    params: {
+      title: "gpt-oss-20b",
+      model: "openai/gpt-oss-20b",
+      contextLength: 128_000,
+    },
+    icon: "openai.png",
+    providerOptions: ["vllm"],
+    isOpenSource: true,
+  },
+  gptOss120B: {
+    title: "gpt-oss-120b",
+    description:
+      "OpenAI's 120B flagship open-weight model built for complex, high‑reasoning agentic workflows.",
+    refUrl: "https://huggingface.co/openai/gpt-oss-120b",
+    params: {
+      title: "gpt-oss-120b",
+      model: "openai/gpt-oss-120b",
+      contextLength: 128_000,
+    },
+    icon: "openai.png",
+    providerOptions: ["vllm"],
+    isOpenSource: true,
+  },
   llama318BChat: {
     title: "Llama 3.1 8B",
     description: "A model from Meta, fine-tuned for chat",