feat: add MiniMax M3 provider

nadirclaw/credentials.py

@@ -25,6 +25,7 @@
     "google": "GOOGLE_API_KEY",
     "cohere": "COHERE_API_KEY",
     "mistral": "MISTRAL_API_KEY",
+    "minimax": "MINIMAX_API_KEY",
 }
 
 # Alternative env vars checked as fallback (order matters)
@@ -49,6 +50,7 @@
     "ollama/": "ollama",
     "cohere/": "cohere",
     "mistral/": "mistral",
+    "minimax/": "minimax",
     "together_ai/": "together_ai",
     "replicate/": "replicate",
 }

nadirclaw/routing.py

@@ -158,6 +158,8 @@ def get_pool_for_model(model: str) -> Optional[str]:
     "deepseek/deepseek-v4-pro": {"context_window": 1_000_000, "cost_per_m_input": 1.74, "cost_per_m_output": 3.48, "has_vision": False},
     "deepseek/deepseek-chat": {"context_window": 128_000, "cost_per_m_input": 0.28, "cost_per_m_output": 0.42, "has_vision": False},
     "deepseek/deepseek-reasoner": {"context_window": 128_000, "cost_per_m_input": 0.28, "cost_per_m_output": 0.42, "has_vision": False},
+    # MiniMax
+    "minimax/MiniMax-M3": {"context_window": 1_000_000, "cost_per_m_input": 0.60, "cost_per_m_output": 2.40, "has_vision": True},
     # Ollama (local, no cost, context varies by model)
     "ollama/llama3.1:8b": {"context_window": 128_000, "cost_per_m_input": 0, "cost_per_m_output": 0, "has_vision": False},
     "ollama/qwen3:32b": {"context_window": 128_000, "cost_per_m_input": 0, "cost_per_m_output": 0, "has_vision": False},
@@ -212,6 +214,8 @@ def _merge_external_model_metadata() -> None:
     "deepseek-v4-flash": "deepseek/deepseek-v4-flash",
     "deepseek-v4-pro": "deepseek/deepseek-v4-pro",
     "deepseek-r1": "deepseek/deepseek-reasoner",
+    "minimax": "minimax/MiniMax-M3",
+    "minimax-m3": "minimax/MiniMax-M3",
     "llama": "ollama/llama3.1:8b",
 }
 

tests/test_credentials.py

@@ -43,6 +43,7 @@ def tmp_credentials(tmp_path, monkeypatch):
     for var in (
         "ANTHROPIC_API_KEY", "OPENAI_API_KEY", "GOOGLE_API_KEY",
         "GEMINI_API_KEY", "COHERE_API_KEY", "MISTRAL_API_KEY",
+        "MINIMAX_API_KEY",
     ):
         monkeypatch.delenv(var, raising=False)
     return creds_file
@@ -133,6 +134,11 @@ def test_gemini_fallback_env(self, monkeypatch):
         monkeypatch.setenv("GEMINI_API_KEY", "AIza-gemini")
         assert get_credential("google") == "AIza-gemini"
 
+    def test_minimax_env(self, monkeypatch):
+        monkeypatch.setenv("MINIMAX_API_KEY", "mm-from-env")
+        assert get_credential("minimax") == "mm-from-env"
+        assert get_credential_source("minimax") == "env"
+
 
 # ---------------------------------------------------------------------------
 # Provider detection
@@ -149,6 +155,7 @@ class TestDetectProvider:
         ("gemini/gemini-3-flash", "google"),
         ("ollama/llama3", "ollama"),
         ("openai-codex/gpt-5.3-codex", "openai-codex"),
+        ("minimax/MiniMax-M3", "minimax"),
         ("unknown-model", None),
     ])
     def test_detect_provider(self, model, expected):

tests/test_routing.py

@@ -101,6 +101,10 @@ def test_deepseek(self):
         assert resolve_alias("deepseek-v4-pro") == "deepseek/deepseek-v4-pro"
         assert resolve_alias("deepseek-r1") == "deepseek/deepseek-reasoner"
 
+    def test_minimax(self):
+        assert resolve_alias("minimax") == "minimax/MiniMax-M3"
+        assert resolve_alias("minimax-m3") == "minimax/MiniMax-M3"
+
 
 # ---------------------------------------------------------------------------
 # detect_agentic
@@ -455,6 +459,10 @@ def test_deepseek_v4_cost(self):
         cost = estimate_cost("deepseek/deepseek-v4-pro", 1_000_000, 1_000_000)
         assert cost == pytest.approx(5.22)
 
+    def test_minimax_m3_cost(self):
+        cost = estimate_cost("minimax/MiniMax-M3", 1_000_000, 1_000_000)
+        assert cost == pytest.approx(3.0)
+
     def test_unknown_model(self):
         assert estimate_cost("unknown-xyz", 1000, 500) is None
 
@@ -690,6 +698,7 @@ def test_vision_models(self):
         assert has_vision("gpt-4o") is True
         assert has_vision("claude-sonnet-4-5-20250929") is True
         assert has_vision("gemini-2.5-pro") is True
+        assert has_vision("minimax/MiniMax-M3") is True
 
     def test_non_vision_models(self):
         assert has_vision("deepseek/deepseek-chat") is False