diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3d3d574..d5d06d07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@
 
 ## [Unreleased]
 
+### 新增
+- ChatGPT/Codex 基础模型列表新增 GPT-5.6 Sol、Terra 和 Luna
+
+### 修复
+- 修复 ChatGPT/Codex 提供商连通性测试因 Responses API 参数不兼容而失败的问题
+
 ## [0.9.14] - 2026-07-25
 
 ### 新增
diff --git a/src/octop/infra/agents/providers/presets.py b/src/octop/infra/agents/providers/presets.py
index a1c49567..06c5d2f4 100644
--- a/src/octop/infra/agents/providers/presets.py
+++ b/src/octop/infra/agents/providers/presets.py
@@ -32,6 +32,24 @@ def load_provider_presets() -> list[dict[str, Any]]:
                         "input": ["text"],
                     },
                     {"id": "gpt-5.5", "name": "GPT-5.5", "enabled": True, "input": ["text"]},
+                    {
+                        "id": "gpt-5.6-sol",
+                        "name": "GPT-5.6 Sol",
+                        "enabled": True,
+                        "input": ["text"],
+                    },
+                    {
+                        "id": "gpt-5.6-terra",
+                        "name": "GPT-5.6 Terra",
+                        "enabled": True,
+                        "input": ["text"],
+                    },
+                    {
+                        "id": "gpt-5.6-luna",
+                        "name": "GPT-5.6 Luna",
+                        "enabled": True,
+                        "input": ["text"],
+                    },
                 ],
                 "logo_id": "openai",
             },
diff --git a/src/octop/infra/agents/providers/probe.py b/src/octop/infra/agents/providers/probe.py
index 94b36e3f..944e6cfc 100644
--- a/src/octop/infra/agents/providers/probe.py
+++ b/src/octop/infra/agents/providers/probe.py
@@ -54,6 +54,9 @@ def build_probe_chat_model(row: Any, *, model_id: str | None = None) -> Any:
             "base_url": base_url,
             "api_key": row.api_key or "",
             "use_responses_api": True,
+            "store": False,
+            "streaming": True,
+            "output_version": "v0",
         }
         if headers:
             kwargs["default_headers"] = dict(headers)
diff --git a/src/octop/infra/providers/codex_apply.py b/src/octop/infra/providers/codex_apply.py
index 4ca64a41..51833d8a 100644
--- a/src/octop/infra/providers/codex_apply.py
+++ b/src/octop/infra/providers/codex_apply.py
@@ -19,6 +19,9 @@
     {"id": "gpt-5.4", "name": "GPT-5.4", "enabled": True, "input": ["text"]},
     {"id": "gpt-5.4-mini", "name": "GPT-5.4 mini", "enabled": True, "input": ["text"]},
     {"id": "gpt-5.5", "name": "GPT-5.5", "enabled": True, "input": ["text"]},
+    {"id": "gpt-5.6-sol", "name": "GPT-5.6 Sol", "enabled": True, "input": ["text"]},
+    {"id": "gpt-5.6-terra", "name": "GPT-5.6 Terra", "enabled": True, "input": ["text"]},
+    {"id": "gpt-5.6-luna", "name": "GPT-5.6 Luna", "enabled": True, "input": ["text"]},
 ]
 
 
diff --git a/tests/unit/providers/test_codex_oauth.py b/tests/unit/providers/test_codex_oauth.py
index d0cf982d..45455cb9 100644
--- a/tests/unit/providers/test_codex_oauth.py
+++ b/tests/unit/providers/test_codex_oauth.py
@@ -97,3 +97,4 @@ def test_build_codex_headers_includes_account_id() -> None:
 def test_codex_provider_constants() -> None:
     assert CODEX_PROVIDER_NAME == "openai-codex"
     assert any(m["id"] == "gpt-5.4" for m in CODEX_MODELS)
+    assert {"gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna"} <= {m["id"] for m in CODEX_MODELS}
diff --git a/tests/unit/test_provider_preset_expansion.py b/tests/unit/test_provider_preset_expansion.py
index 4a24ad0f..3aecdda0 100644
--- a/tests/unit/test_provider_preset_expansion.py
+++ b/tests/unit/test_provider_preset_expansion.py
@@ -39,6 +39,10 @@ def test_load_provider_presets_integration() -> None:
     gpt4o = next(m for m in openai["models"] if m["id"] == "gpt-4o")
     assert gpt4o.get("input") == ["text", "image"]
 
+    codex = next(p for p in presets if p["id"] == "openai-codex")
+    codex_ids = {m["id"] for m in codex["models"]}
+    assert {"gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna"} <= codex_ids
+
     kimi_cn = next(p for p in presets if p["id"] == "kimi-cn")
     kimi_k25 = next(m for m in kimi_cn["models"] if m["id"] == "kimi-k2.5")
     assert kimi_k25.get("input") == ["text", "image"]
diff --git a/tests/unit/test_provider_probe.py b/tests/unit/test_provider_probe.py
index 28c9d632..00502b96 100644
--- a/tests/unit/test_provider_probe.py
+++ b/tests/unit/test_provider_probe.py
@@ -26,3 +26,29 @@ def test_build_chat_model_includes_provider_id_and_model_name() -> None:
     assert provider.name == "HAI"
     assert model.id == "MiniMax-M2.7"
     assert model.name == "MiniMax-M2.7"
+
+
+def test_build_chat_model_uses_codex_responses_compatibility_options() -> None:
+    row = SimpleNamespace(
+        name="Codex",
+        kind="openai",
+        base_url="https://chatgpt.com/backend-api/codex",
+        api_key="codex-token",
+        extra_json='{"headers": {"ChatGPT-Account-Id": "account-id"}}',
+        get_models=lambda: [{"id": "gpt-5.4", "name": "GPT-5.4"}],
+    )
+
+    with patch("langchain_openai.ChatOpenAI") as mock_chat_openai:
+        mock_chat_openai.return_value = object()
+        _build_chat_model(row, model_id="gpt-5.4")
+
+    assert mock_chat_openai.call_args.kwargs == {
+        "model": "gpt-5.4",
+        "base_url": "https://chatgpt.com/backend-api/codex",
+        "api_key": "codex-token",
+        "use_responses_api": True,
+        "store": False,
+        "streaming": True,
+        "output_version": "v0",
+        "default_headers": {"ChatGPT-Account-Id": "account-id"},
+    }