diff --git a/providers/openai/responses_options.go b/providers/openai/responses_options.go
index 935d97a1d78dcc56c80064ee0334de93cb9a17aa..f38b0bebe43bbd86b3f0b309eee6f2c361e0dc18 100644
--- a/providers/openai/responses_options.go
+++ b/providers/openai/responses_options.go
@@ -151,9 +151,13 @@ var responsesReasoningModelIDs = []string{
 	"gpt-5-nano",
 	"gpt-5-nano-2025-08-07",
 	"gpt-5-codex",
+	"gpt-5-chat",
+	"gpt-5-pro",
 	"gpt-5.1",
 	"gpt-5.1-codex",
 	"gpt-5.1-codex-mini",
+	"gpt-5.1-chat",
+	"gpt-oss-120b",
 }
 
 // responsesModelIds lists all model IDs for OpenAI Responses API.