test_gpt_5_temperature() — langchain Function Reference

Architecture documentation for the test_gpt_5_temperature() function in test_base.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

LangChainCore→ LanguageModelBase→ test_gpt_5_temperature() — langchain Function Reference

Dependency Diagram

graph TD
  e1ad9ff5_bc50_fbcf_4a76_7729b0334fad["test_gpt_5_temperature()"]
  48232d20_f8c1_b597_14fa_7dc407e9bfe5["test_base.py"]
  e1ad9ff5_bc50_fbcf_4a76_7729b0334fad -->|defined in| 48232d20_f8c1_b597_14fa_7dc407e9bfe5
  style e1ad9ff5_bc50_fbcf_4a76_7729b0334fad fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/openai/tests/unit_tests/chat_models/test_base.py lines 3087–3101

def test_gpt_5_temperature(use_responses_api: bool) -> None:
    llm = ChatOpenAI(
        model="gpt-5-nano", temperature=0.5, use_responses_api=use_responses_api
    )

    messages = [HumanMessage(content="Hello")]
    payload = llm._get_request_payload(messages)
    assert "temperature" not in payload  # not supported for gpt-5 family models

    llm = ChatOpenAI(
        model="gpt-5-chat", temperature=0.5, use_responses_api=use_responses_api
    )
    messages = [HumanMessage(content="Hello")]
    payload = llm._get_request_payload(messages)
    assert payload["temperature"] == 0.5  # gpt-5-chat is exception