diff --git a/litellm/__init__.py b/litellm/__init__.py
index 1784deeb797..ba98824a40f 100644
--- a/litellm/__init__.py
+++ b/litellm/__init__.py
@@ -708,6 +708,7 @@ transcribe_models: Set = set()
 gigachat_models: Set = set()
 llamagate_models: Set = set()
 coralbricks_models: Set[str] = set()
+aiand_models: Set[str] = set()
 reducto_models: Set = set()
 bedrock_mantle_models: Set = set()
 
@@ -1018,6 +1019,8 @@ def _populate_provider_model_sets(model_cost_map: Mapping[str, Mapping[str, obje
             llamagate_models.add(key)
         elif value.get("litellm_provider") == "coralbricks":
             coralbricks_models.add(key)
+        elif value.get("litellm_provider") == "aiand":
+            aiand_models.add(key)
         elif value.get("litellm_provider") == "reducto":
             reducto_models.add(key)
         elif value.get("litellm_provider") == "bedrock_mantle":
@@ -1154,6 +1157,7 @@ model_list = list(
     | reducto_models
     | bedrock_mantle_models
     | coralbricks_models
+    | aiand_models
     | set(clarifai_models)
 )
 
@@ -1277,6 +1281,7 @@ def _build_models_by_provider() -> dict:
         "gigachat": gigachat_models,
         "llamagate": llamagate_models,
         "coralbricks": coralbricks_models,
+        "aiand": aiand_models,
         "reducto": reducto_models,
         "bedrock_mantle": bedrock_mantle_models,
     }
diff --git a/litellm/constants.py b/litellm/constants.py
index c0fe0491775..628948b288a 100644
--- a/litellm/constants.py
+++ b/litellm/constants.py
@@ -1032,6 +1032,7 @@ openai_compatible_endpoints: Final[list[str]] = [
     "https://api-inference.modelscope.cn/v1",
     "https://api.moonshot.ai/v1",
     "https://api.publicai.co/v1",
+    "https://api.aiand.com/v1",
     "https://api.synthetic.new/openai/v1",
     "https://serverless.tensormesh.ai/v1",
     "https://api.stima.tech/v1",
@@ -1097,6 +1098,7 @@ openai_compatible_providers: Final[list[str]] = [
     "novita",
     "meta_llama",
     "publicai",  # PublicAI - JSON-configured provider
+    "aiand",  # ai& - JSON-configured provider
     "synthetic",  # Synthetic - JSON-configured provider
     "tensormesh",  # Tensormesh - JSON-configured provider
     "apertis",  # Apertis - JSON-configured provider
diff --git a/litellm/llms/openai_like/providers.json b/litellm/llms/openai_like/providers.json
index 36337fddbdc..dfff2c7cb6d 100644
--- a/litellm/llms/openai_like/providers.json
+++ b/litellm/llms/openai_like/providers.json
@@ -107,6 +107,12 @@
     "api_key_env": "AIHUBMIX_API_KEY",
     "api_base_env": "AIHUBMIX_API_BASE"
   },
+  "aiand": {
+    "base_url": "https://api.aiand.com/v1",
+    "api_key_env": "AIAND_API_KEY",
+    "api_base_env": "AIAND_API_BASE",
+    "supported_endpoints": ["/v1/chat/completions", "/v1/responses", "/v1/messages"]
+  },
   "crusoe": {
     "base_url": "https://api.inference.crusoecloud.com/v1",
     "api_key_env": "CRUSOE_API_KEY",
diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index cb9bfa6ffe4..16f21950dba 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -72111,6 +72111,214 @@
         "supports_reasoning": true,
         "supports_vision": true
     },
+    "aiand/deepseek-ai/deepseek-v4-flash": {
+        "cache_read_input_token_cost": 8e-08,
+        "input_cost_per_token": 1.5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 384000,
+        "max_tokens": 384000,
+        "mode": "chat",
+        "output_cost_per_token": 2.5e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/deepseek-ai/deepseek-v4-pro": {
+        "cache_read_input_token_cost": 2.5e-07,
+        "input_cost_per_token": 1e-06,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 384000,
+        "max_tokens": 384000,
+        "mode": "chat",
+        "output_cost_per_token": 2.5e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/deepseek-ai/deepseek-v4.1-flash": {
+        "cache_read_input_token_cost": 2e-08,
+        "input_cost_per_token": 3e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 384000,
+        "max_tokens": 384000,
+        "mode": "chat",
+        "output_cost_per_token": 6e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/google/gemma-4-31b-it": {
+        "cache_read_input_token_cost": 5e-08,
+        "input_cost_per_token": 2e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 32768,
+        "max_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 5e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/moonshotai/kimi-k2.7-code": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 7.5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 262144,
+        "max_tokens": 262144,
+        "mode": "chat",
+        "output_cost_per_token": 3.5e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/moonshotai/kimi-k3": {
+        "cache_read_input_token_cost": 5e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 131072,
+        "max_tokens": 131072,
+        "mode": "chat",
+        "output_cost_per_token": 1.25e-05,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/motif-technologies/motif-3": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 262144,
+        "max_tokens": 262144,
+        "mode": "chat",
+        "output_cost_per_token": 2e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/openai/gpt-oss-120b": {
+        "cache_read_input_token_cost": 8e-08,
+        "input_cost_per_token": 1.5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 131072,
+        "max_output_tokens": 32768,
+        "max_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 6e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/qwen/qwen3.6-27b": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 3.2e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 65536,
+        "max_tokens": 65536,
+        "mode": "chat",
+        "output_cost_per_token": 3.2e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/qwen/qwen3.8-27b": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 4e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 32768,
+        "max_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 3e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/zai-org/glm-5.2": {
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 1e-06,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 131072,
+        "max_tokens": 131072,
+        "mode": "chat",
+        "output_cost_per_token": 4e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/zai-org/glm-5.3": {
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 1e-06,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 131072,
+        "max_tokens": 131072,
+        "mode": "chat",
+        "output_cost_per_token": 4e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/zai-org/glm-5.3-flash": {
+        "cache_read_input_token_cost": 3e-08,
+        "input_cost_per_token": 1.5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048550,
+        "max_output_tokens": 131072,
+        "max_tokens": 131072,
+        "mode": "chat",
+        "output_cost_per_token": 5e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
     "bespoke/nimble-latest": {
         "input_cost_per_token": 0.0,
         "litellm_provider": "bespoke",
diff --git a/litellm/provider_endpoints_support_backup.json b/litellm/provider_endpoints_support_backup.json
index f95b553c2b4..6a5204f483d 100644
--- a/litellm/provider_endpoints_support_backup.json
+++ b/litellm/provider_endpoints_support_backup.json
@@ -120,6 +120,23 @@
         "interactions": true
       }
     },
+    "aiand": {
+      "display_name": "ai& (`aiand`)",
+      "url": "https://docs.aiand.com/api/chat-completions/",
+      "endpoints": {
+        "chat_completions": true,
+        "messages": true,
+        "responses": true,
+        "embeddings": false,
+        "image_generations": false,
+        "audio_transcriptions": false,
+        "audio_speech": false,
+        "moderations": false,
+        "batches": false,
+        "rerank": false,
+        "a2a": false
+      }
+    },
     "amazon_nova": {
       "display_name": "Amazon Nova (`amazon_nova`)",
       "url": "https://docs.litellm.ai/docs/providers/amazon_nova",
diff --git a/litellm/proxy/public_endpoints/provider_create_fields.json b/litellm/proxy/public_endpoints/provider_create_fields.json
index 4bec42a7868..6a47e989b61 100644
--- a/litellm/proxy/public_endpoints/provider_create_fields.json
+++ b/litellm/proxy/public_endpoints/provider_create_fields.json
@@ -1,4 +1,32 @@
 [
+  {
+    "provider": "AIAND",
+    "provider_display_name": "ai&",
+    "litellm_provider": "aiand",
+    "credential_fields": [
+      {
+        "key": "api_base",
+        "label": "API Base",
+        "placeholder": "https://api.aiand.com/v1",
+        "tooltip": null,
+        "required": false,
+        "field_type": "text",
+        "options": null,
+        "default_value": null
+      },
+      {
+        "key": "api_key",
+        "label": "API Key",
+        "placeholder": null,
+        "tooltip": null,
+        "required": true,
+        "field_type": "password",
+        "options": null,
+        "default_value": null
+      }
+    ],
+    "default_model_placeholder": "aiand/openai/gpt-oss-120b"
+  },
   {
     "provider": "SCALEDOWN",
     "provider_display_name": "ScaleDown",
diff --git a/litellm/types/utils.py b/litellm/types/utils.py
index 5939a350970..2984b709099 100644
--- a/litellm/types/utils.py
+++ b/litellm/types/utils.py
@@ -4537,6 +4537,7 @@ class LlmProviders(str, Enum):
     POE = "poe"
     CHUTES = "chutes"
     NEOSANTARA = "neosantara"
+    AIAND = "aiand"
     PARASAIL = "parasail"
     XIAOMI_MIMO = "xiaomi_mimo"
     TENSORMESH = "tensormesh"
diff --git a/model_prices_and_context_window.json b/model_prices_and_context_window.json
index cb9bfa6ffe4..16f21950dba 100644
--- a/model_prices_and_context_window.json
+++ b/model_prices_and_context_window.json
@@ -72111,6 +72111,214 @@
         "supports_reasoning": true,
         "supports_vision": true
     },
+    "aiand/deepseek-ai/deepseek-v4-flash": {
+        "cache_read_input_token_cost": 8e-08,
+        "input_cost_per_token": 1.5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 384000,
+        "max_tokens": 384000,
+        "mode": "chat",
+        "output_cost_per_token": 2.5e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/deepseek-ai/deepseek-v4-pro": {
+        "cache_read_input_token_cost": 2.5e-07,
+        "input_cost_per_token": 1e-06,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 384000,
+        "max_tokens": 384000,
+        "mode": "chat",
+        "output_cost_per_token": 2.5e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/deepseek-ai/deepseek-v4.1-flash": {
+        "cache_read_input_token_cost": 2e-08,
+        "input_cost_per_token": 3e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 384000,
+        "max_tokens": 384000,
+        "mode": "chat",
+        "output_cost_per_token": 6e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/google/gemma-4-31b-it": {
+        "cache_read_input_token_cost": 5e-08,
+        "input_cost_per_token": 2e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 32768,
+        "max_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 5e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/moonshotai/kimi-k2.7-code": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 7.5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 262144,
+        "max_tokens": 262144,
+        "mode": "chat",
+        "output_cost_per_token": 3.5e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/moonshotai/kimi-k3": {
+        "cache_read_input_token_cost": 5e-07,
+        "input_cost_per_token": 3e-06,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 131072,
+        "max_tokens": 131072,
+        "mode": "chat",
+        "output_cost_per_token": 1.25e-05,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/motif-technologies/motif-3": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 262144,
+        "max_tokens": 262144,
+        "mode": "chat",
+        "output_cost_per_token": 2e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/openai/gpt-oss-120b": {
+        "cache_read_input_token_cost": 8e-08,
+        "input_cost_per_token": 1.5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 131072,
+        "max_output_tokens": 32768,
+        "max_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 6e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/qwen/qwen3.6-27b": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 3.2e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 65536,
+        "max_tokens": 65536,
+        "mode": "chat",
+        "output_cost_per_token": 3.2e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/qwen/qwen3.8-27b": {
+        "cache_read_input_token_cost": 2e-07,
+        "input_cost_per_token": 4e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 262144,
+        "max_output_tokens": 32768,
+        "max_tokens": 32768,
+        "mode": "chat",
+        "output_cost_per_token": 3e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
+    "aiand/zai-org/glm-5.2": {
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 1e-06,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 131072,
+        "max_tokens": 131072,
+        "mode": "chat",
+        "output_cost_per_token": 4e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/zai-org/glm-5.3": {
+        "cache_read_input_token_cost": 3e-07,
+        "input_cost_per_token": 1e-06,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048576,
+        "max_output_tokens": 131072,
+        "max_tokens": 131072,
+        "mode": "chat",
+        "output_cost_per_token": 4e-06,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": false
+    },
+    "aiand/zai-org/glm-5.3-flash": {
+        "cache_read_input_token_cost": 3e-08,
+        "input_cost_per_token": 1.5e-07,
+        "litellm_provider": "aiand",
+        "max_input_tokens": 1048550,
+        "max_output_tokens": 131072,
+        "max_tokens": 131072,
+        "mode": "chat",
+        "output_cost_per_token": 5e-07,
+        "source": "https://api.aiand.com/v1/models",
+        "supports_function_calling": true,
+        "supports_prompt_caching": true,
+        "supports_reasoning": true,
+        "supports_tool_choice": true,
+        "supports_vision": true
+    },
     "bespoke/nimble-latest": {
         "input_cost_per_token": 0.0,
         "litellm_provider": "bespoke",
diff --git a/provider_endpoints_support.json b/provider_endpoints_support.json
index d65da3f41fd..fb1ed8de16c 100644
--- a/provider_endpoints_support.json
+++ b/provider_endpoints_support.json
@@ -121,6 +121,23 @@
         "interactions": true
       }
     },
+    "aiand": {
+      "display_name": "ai& (`aiand`)",
+      "url": "https://docs.aiand.com/api/chat-completions/",
+      "endpoints": {
+        "chat_completions": true,
+        "messages": true,
+        "responses": true,
+        "embeddings": false,
+        "image_generations": false,
+        "audio_transcriptions": false,
+        "audio_speech": false,
+        "moderations": false,
+        "batches": false,
+        "rerank": false,
+        "a2a": false
+      }
+    },
     "amazon_nova": {
       "display_name": "Amazon Nova (`amazon_nova`)",
       "url": "https://docs.litellm.ai/docs/providers/amazon_nova",
diff --git a/tests/unit/llms/openai_like/test_aiand_provider.py b/tests/unit/llms/openai_like/test_aiand_provider.py
new file mode 100644
index 00000000000..804f3a3b6eb
--- /dev/null
+++ b/tests/unit/llms/openai_like/test_aiand_provider.py
@@ -0,0 +1,145 @@
+import json
+from typing import Final
+
+import httpx
+import pytest
+import respx
+
+import litellm
+from litellm.caching.llm_caching_handler import LLMClientCache
+from litellm.litellm_core_utils.get_llm_provider_logic import get_llm_provider
+from litellm.llms.openai_like.json_loader import JSONProviderRegistry
+from litellm.proxy.auth.model_checks import get_known_models_from_wildcard
+from litellm.utils import ProviderConfigManager
+
+AIAND_API_BASE = "https://api.aiand.com/v1"
+
+
+def test_aiand_chat_provider(monkeypatch: pytest.MonkeyPatch):
+    monkeypatch.setenv("AIAND_API_KEY", "test-key")
+
+    provider_config = JSONProviderRegistry.get("aiand")
+    assert provider_config is not None
+    assert litellm.LlmProviders.AIAND.value == "aiand"
+    assert "aiand" in litellm.openai_compatible_providers
+    assert provider_config.base_url == AIAND_API_BASE
+    assert provider_config.api_key_env == "AIAND_API_KEY"
+    assert provider_config.api_base_env == "AIAND_API_BASE"
+
+    model, provider, api_key, api_base = get_llm_provider("aiand/openai/gpt-oss-120b")
+    assert model == "openai/gpt-oss-120b"
+    assert provider == "aiand"
+    assert api_key == "test-key"
+    assert api_base == AIAND_API_BASE
+
+
+def test_aiand_completion_request(respx_mock: respx.MockRouter):
+    messages = [{"role": "user", "content": "Hello"}]
+    route = respx_mock.post(f"{AIAND_API_BASE}/chat/completions").mock(
+        return_value=httpx.Response(
+            200,
+            json={
+                "id": "chatcmpl-test",
+                "object": "chat.completion",
+                "created": 1,
+                "model": "openai/gpt-oss-120b",
+                "choices": [
+                    {
+                        "index": 0,
+                        "message": {"role": "assistant", "content": "Hello"},
+                        "finish_reason": "stop",
+                    }
+                ],
+                "usage": {
+                    "prompt_tokens": 1,
+                    "completion_tokens": 1,
+                    "total_tokens": 2,
+                },
+            },
+        )
+    )
+
+    litellm.completion(
+        model="aiand/openai/gpt-oss-120b",
+        api_key="test-key",
+        messages=messages,
+    )
+
+    assert route.called
+    request = route.calls.last.request
+    assert str(request.url) == f"{AIAND_API_BASE}/chat/completions"
+    assert request.headers["Authorization"] == "Bearer test-key"
+    request_body = json.loads(request.read())
+    assert request_body["model"] == "openai/gpt-oss-120b"
+    assert request_body["messages"] == messages
+
+
+def test_aiand_responses_provider():
+    config = ProviderConfigManager.get_provider_responses_api_config(
+        provider="aiand",
+        model="aiand/openai/gpt-oss-120b",
+    )
+
+    assert config is not None
+    assert config.custom_llm_provider == "aiand"
+    assert config.get_complete_url(api_base=None, litellm_params={}) == f"{AIAND_API_BASE}/responses"
+
+
+def _aiand_catalog() -> frozenset[str]:
+    return frozenset(name for name, info in litellm.model_cost.items() if info.get("litellm_provider") == "aiand")
+
+
+def test_aiand_wildcard_lists_its_priced_models():
+    catalog: Final = _aiand_catalog()
+
+    assert catalog
+    assert frozenset(get_known_models_from_wildcard("aiand/*")) == catalog
+
+
+def test_aiand_calls_are_billed_from_their_cost_rows():
+    catalog: Final = _aiand_catalog()
+    assert catalog
+
+    for model in sorted(catalog):
+        row: Final = litellm.model_cost[model]
+        prompt_cost, completion_cost = litellm.cost_per_token(model=model, prompt_tokens=1000, completion_tokens=500)
+
+        assert prompt_cost == pytest.approx(1000 * row["input_cost_per_token"])
+        assert completion_cost == pytest.approx(500 * row["output_cost_per_token"])
+        assert prompt_cost > 0 and completion_cost > 0
+
+
+@pytest.mark.asyncio
+async def test_aiand_anthropic_messages_reach_ai_and_with_the_thinking_budget(monkeypatch: pytest.MonkeyPatch):
+    monkeypatch.setattr(litellm, "disable_aiohttp_transport", True)
+    monkeypatch.setattr(litellm, "in_memory_llm_clients_cache", LLMClientCache())
+    thinking: Final = {"type": "enabled", "budget_tokens": 1024}
+    with respx.mock() as upstream:
+        route: Final = upstream.post(f"{AIAND_API_BASE}/messages").respond(
+            200,
+            json={
+                "id": "msg_aiand",
+                "type": "message",
+                "role": "assistant",
+                "model": "zai-org/glm-5.3",
+                "content": [{"type": "thinking", "thinking": "A greeting", "signature": ""}, {"type": "text", "text": "Hello"}],
+                "stop_reason": "end_turn",
+                "stop_sequence": None,
+                "usage": {"input_tokens": 4, "output_tokens": 3},
+            },
+        )
+        response: Final = await litellm.anthropic.messages.acreate(
+            model="aiand/zai-org/glm-5.3",
+            messages=[{"role": "user", "content": "Say hello"}],
+            max_tokens=2048,
+            thinking=thinking,
+            api_key="aiand-test-key",
+        )
+
+    request: Final = route.calls.last.request
+    body: Final = json.loads(request.content)
+    assert route.call_count == 1
+    assert body["model"] == "zai-org/glm-5.3"
+    assert body["thinking"] == thinking
+    assert "reasoning_effort" not in body
+    assert [block["type"] for block in response["content"]] == ["thinking", "text"]