[integration][openai] Update stale default model gpt-3.5-turbo to gpt-4o-mini#906
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…-4o-mini gpt-3.5-turbo is a legacy OpenAI model. Update the OpenAI Chat Completions default to gpt-4o-mini, its current low-cost successor and the value the Java Javadoc example already uses, keeping a sensible zero-config default and Java/Python parity. Updates the Java and Python defaults and the OpenAICompletionsSetup parameter tables in the docs.
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Linked issue: #905
Purpose of change
The OpenAI Chat Completions chat model defaults to
gpt-3.5-turbowhen the caller omitsmodel. This is a legacy OpenAI model, superseded by cheaper and more capable small models. A user who takes the default silently gets an outdated model — and the Java Javadoc example already usesgpt-4o-mini, so the code base is inconsistent with its own default.This change updates the default to
gpt-4o-mini— the current low-cost successor togpt-3.5-turbo— in both language runtimes and the docs, keeping a sensible zero-config default while dropping the legacy model and keeping Java and Python in parity.OpenAICompletionsSetup.DEFAULT_MODELDEFAULT_OPENAI_MODELOpenAICompletionsSetupparameter tables for both languagesTests
No new tests. The existing Python test asserts against the imported
DEFAULT_OPENAI_MODELconstant rather than a hard-coded string, so it continues to pin the default without change (test_openai_chat_model.py). There is no equivalent Java assertion on the default. Verified the Python OpenAI chat-model tests pass and the OpenAI Java module compiles.API
No API signature change. Only the value of the default model changes; callers that pass
modelexplicitly are unaffected.Documentation
doc-neededdoc-not-neededdoc-included