diff --git a/hermes_cli/auth.py b/hermes_cli/auth.py
index 6f4fc344636..1cffe272868 100644
--- a/hermes_cli/auth.py
+++ b/hermes_cli/auth.py
@@ -402,6 +402,7 @@ PROVIDER_REGISTRY: Dict[str, ProviderConfig] = {
         # OpenCode Go mixes API surfaces by model:
         # - GLM / Kimi use OpenAI-compatible chat completions under /v1
         # - MiniMax models use Anthropic Messages under /v1/messages
+        # - Qwen 3.7 uses Anthropic Messages under /v1/messages
         # Keep the provider base at /v1 and select api_mode per-model.
         inference_base_url="https://opencode.ai/zen/go/v1",
         api_key_env_vars=("OPENCODE_GO_API_KEY",),
diff --git a/hermes_cli/models.py b/hermes_cli/models.py
index 8af3951ecc0..354045ed5df 100644
--- a/hermes_cli/models.py
+++ b/hermes_cli/models.py
@@ -399,6 +399,7 @@ _PROVIDER_MODELS: dict[str, list[str]] = {
         "mimo-v2-omni",
         "minimax-m2.7",
         "minimax-m2.5",
+        "qwen3.7-max",
         "qwen3.6-plus",
         "qwen3.5-plus",
     ],
@@ -3015,6 +3016,8 @@ def opencode_model_api_mode(provider_id: Optional[str], model_id: Optional[str])
     if provider == "opencode-go":
         if normalized.startswith("minimax-"):
             return "anthropic_messages"
+        if normalized.startswith("qwen3.7-max"):
+            return "anthropic_messages"
         return "chat_completions"
 
     if provider == "opencode-zen":
diff --git a/hermes_cli/setup.py b/hermes_cli/setup.py
index 350b2501c9c..1af23f3b9cd 100644
--- a/hermes_cli/setup.py
+++ b/hermes_cli/setup.py
@@ -104,7 +104,7 @@ _DEFAULT_PROVIDER_MODELS = {
     "ai-gateway": ["anthropic/claude-opus-4.6", "anthropic/claude-sonnet-4.6", "openai/gpt-5", "google/gemini-3-flash"],
     "kilocode": ["anthropic/claude-opus-4.6", "anthropic/claude-sonnet-4.6", "openai/gpt-5.4", "google/gemini-3-pro-preview", "google/gemini-3-flash-preview"],
     "opencode-zen": ["gpt-5.4", "gpt-5.3-codex", "claude-sonnet-4-6", "gemini-3-flash", "glm-5", "kimi-k2.5", "minimax-m2.7"],
-    "opencode-go": ["kimi-k2.6", "kimi-k2.5", "glm-5.1", "glm-5", "mimo-v2.5-pro", "mimo-v2.5", "mimo-v2-pro", "mimo-v2-omni", "minimax-m2.7", "minimax-m2.5", "qwen3.6-plus", "qwen3.5-plus"],
+    "opencode-go": ["kimi-k2.6", "kimi-k2.5", "glm-5.1", "glm-5", "mimo-v2.5-pro", "mimo-v2.5", "mimo-v2-pro", "mimo-v2-omni", "minimax-m2.7", "minimax-m2.5", "qwen3.7-max", "qwen3.6-plus", "qwen3.5-plus"],
     "huggingface": [
         "Qwen/Qwen3.5-397B-A17B", "Qwen/Qwen3-235B-A22B-Thinking-2507",
         "Qwen/Qwen3-Coder-480B-A35B-Instruct", "deepseek-ai/DeepSeek-R1-0528",
diff --git a/tests/hermes_cli/test_model_validation.py b/tests/hermes_cli/test_model_validation.py
index 03c0fcca3d4..91fc4e50d00 100644
--- a/tests/hermes_cli/test_model_validation.py
+++ b/tests/hermes_cli/test_model_validation.py
@@ -414,6 +414,8 @@ class TestCopilotNormalization:
         assert opencode_model_api_mode("opencode-go", "opencode-go/kimi-k2.5") == "chat_completions"
         assert opencode_model_api_mode("opencode-go", "minimax-m2.5") == "anthropic_messages"
         assert opencode_model_api_mode("opencode-go", "opencode-go/minimax-m2.5") == "anthropic_messages"
+        assert opencode_model_api_mode("opencode-go", "qwen3.7-max") == "anthropic_messages"
+        assert opencode_model_api_mode("opencode-go", "opencode-go/qwen3.7-max") == "anthropic_messages"
 
 
 class TestAzureFoundryModelApiMode: