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test_flex_usage_responses() — langchain Function Reference

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

Function python LangChainCore LanguageModelBase

Entity Profile

Dependency Diagram

graph TD
  35f70d16_d39c_9cf2_41ba_e88950e9345a["test_flex_usage_responses()"]
  bd382a4e_442c_13ae_530c_6e34bc43623d["test_base.py"]
  35f70d16_d39c_9cf2_41ba_e88950e9345a -->|defined in| bd382a4e_442c_13ae_530c_6e34bc43623d
  style 35f70d16_d39c_9cf2_41ba_e88950e9345a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/openai/tests/integration_tests/chat_models/test_base.py lines 395–413

def test_flex_usage_responses(streaming: bool) -> None:
    llm = ChatOpenAI(
        model="gpt-5-nano",
        service_tier="flex",
        max_retries=3,
        use_responses_api=True,
        streaming=streaming,
    )
    result = llm.invoke("Hello")
    assert result.usage_metadata
    flex_input = result.usage_metadata.get("input_token_details", {}).get("flex")
    flex_output = result.usage_metadata.get("output_token_details", {}).get("flex")
    flex_reasoning = result.usage_metadata.get("output_token_details", {}).get(
        "flex_reasoning"
    )
    assert isinstance(flex_input, int)
    assert isinstance(flex_output, int)
    assert isinstance(flex_reasoning, int)
    assert flex_output + flex_reasoning == result.usage_metadata.get("output_tokens")

Domain

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Defined In

Source

Frequently Asked Questions

What does test_flex_usage_responses() do?
test_flex_usage_responses() is a function in the langchain codebase, defined in libs/partners/openai/tests/integration_tests/chat_models/test_base.py.
Where is test_flex_usage_responses() defined?
test_flex_usage_responses() is defined in libs/partners/openai/tests/integration_tests/chat_models/test_base.py at line 395.

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