Providers & API keys

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pagent talks to any server that implements OpenAI Chat Completions (/v1/chat/completions).

Built-in classes

Class	Default model (examples)	Environment variable
LLM("gpt-4o-mini")	as passed	OPENAI_API_KEY
DeepSeek("deepseek-v4-flash")	as passed	DEEPSEEK_API_KEY
Ollama("llama3.2")	as passed	optional OLLAMA_API_KEY
Vllm, Sglang	as passed	provider-specific

from pagent import DeepSeek, LLM, Ollama

llm = LLM("gpt-4o-mini")
llm = DeepSeek("deepseek-v4-flash")
llm = Ollama("llama3.2")   # http://127.0.0.1:11434/v1

Reasoning models

Some providers expose reasoning_content (e.g. DeepSeek). Use reasoning_effort in run_kwargs and handle ReasoningDelta when streaming. See Reasoning streams.

Optional extras

pip install "pagent[search]"    # web_search tool (ddgs)
pip install "pagent[tokens]"    # HuggingFace tokenizers for some models