deepseek()

Create a DeepSeek language model

Factory function to create a DeepSeek model instance. DeepSeek provides powerful AI models through an OpenAI-compatible API.

Signature

def deepseek(model_id: str, *, api_key: str | None = None) -> LanguageModel

Parameters

model_id · str · required

The DeepSeek model identifier (e.g., “deepseek-chat”, “deepseek-reasoner”).

api_key · str

DeepSeek API key. Falls back to DEEPSEEK_API_KEY environment variable.

Returns

A LanguageModel instance configured for DeepSeek.

Environment

Requires DEEPSEEK_API_KEY environment variable.

export DEEPSEEK_API_KEY="sk-..."

Available Models

Model ID	Description
deepseek-chat	DeepSeek-V3 - general purpose chat model
deepseek-reasoner	DeepSeek-R1 - advanced reasoning model

Example

from ai_query import generate_text
from ai_query.providers import deepseek

result = await generate_text(
    model=deepseek("deepseek-chat"),
    prompt="Hello, world!"
)

Provider Options

result = await generate_text(
    model=deepseek("deepseek-reasoner"),
    prompt="Solve this problem step by step.",
    provider_options={
        "openai": {
            "temperature": 0.7,
            "max_tokens": 2000
        }
    }
)