Lemonade

Lemonade Server is an OpenAI-compatible local language model inference provider optimized for AMD GPUs and NPUs. The lemonade litellm provider supports standard chat completions with full OpenAI API compatibility.

Supported OpenAI Parameters

Lemonade is fully OpenAI-compatible and supports the following parameters:

"repeat_penalty"
"functions"
"logit_bias"
"max_tokens"
"max_completion_tokens"
"presence_penalty"
"stop"
"temperature"
"top_p"
"top_k"
"response_format"
"tools"

API Key Setup

Lemonade can be configured with custom API URLs and doesn't require strict API key validation. Set the LEMONADE_API_BASE environment variable to modify the base URL.

Usage

from litellm import completion

# Optional: Set custom API base. Useful if your lemonade server is on
# a different port
os.environ['LEMONADE_API_BASE'] = "http://localhost:8000/api/v1"

response = completion(
    model="lemonade/your-model-name",
    messages=[
       {"role": "user", "content": "Hello from LiteLLM!"}
   ],
)
print(response)

Streaming

from litellm import completion

# Optional: Set custom API base. Useful if your lemonade server is on
# a different port
os.environ['LEMONADE_API_BASE'] = "http://localhost:8000/api/v1"

response = completion(
    model="lemonade/your-model-name",
    messages=[
       {"role": "user", "content": "Write a short story"}
   ],
    stream=True
)

for chunk in response:
    print(chunk.choices[0].delta.content, end='', flush=True)

Advanced Usage

Custom Parameters

Lemonade supports additional parameters beyond the standard OpenAI set:

from litellm import completion

response = completion(
    model="lemonade/your-model-name",
    messages=[{"role": "user", "content": "Explain quantum computing"}],
    temperature=0.7,
    max_tokens=500,
    top_p=0.9,
    top_k=50,
    repeat_penalty=1.1,
    stop=["Human:", "AI:"]
)
print(response)

Function Calling

Lemonade supports OpenAI-compatible function calling:

from litellm import completion

functions = [
    {
        "name": "get_weather",
        "description": "Get current weather information",
        "parameters": {
            "type": "object",
            "properties": {
                "location": {
                    "type": "string",
                    "description": "The city and state"
                }
            },
            "required": ["location"]
        }
    }
]

response = completion(
    model="lemonade/your-model-name",
    messages=[{"role": "user", "content": "What's the weather in San Francisco?"}],
    tools=[{"type": "function", "function": f} for f in functions],
    tool_choice="auto"
)
print(response)

Response Format

Lemonade supports structured output with response format:

from litellm import completion

# Define schema in response_format
response = completion(
    model="lemonade/Qwen3-Coder-30B-A3B-Instruct-GGUF",
    messages=[{"role": "user", "content": "Generate JSON data for a person with their name, age, and city."}],
    response_format={
        "type": "json_schema",
        "json_schema": {
            "name": "person",
            "schema": {
                "type": "object",
                "properties": {
                    "name": {"type": "string"},
                    "age": {"type": "integer"},
                    "city": {"type": "string"}
                },
                "required": ["name", "age"]
            }
        }
    }
)

print(f"Model: {response.model}")
print(f"JSON Output:")
json_data = json.loads(response.choices[0].message.content)
print(json.dumps(json_data, indent=2))

Available Models

Lemonade automatically validates available models by querying the /models endpoint. You can check available models programmatically:

api_base = "http://localhost:8000"  # or your custom base
response = httpx.get(f"{api_base}/api/v1/models")
models = response.json()
print("Available models:", [model['id'] for model in models.get('data', [])])

Support

For more information regarding Lemonade please go to to the Lemonade website or Lemonade repository.