Unverified50% confidenceFactExact time
OpenAI API historical updates include new model versions (such as the gpt-4o series), expanded context windows, support for Structured Outputs, and the launch of the Batch API.
1
Sources
50%
Confidence
Long-term
Relevance
9/26/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedIn 2025, OpenAI made significant updates to its API protocol, introducing new authentication mechanisms and request header formats, which caused the previously simple method of connecting to domestic models by replacing the BaseURL to stop working.78% similarUnverifiedStarting from GPT-4o, OpenAI natively supports parallel function calling at the API level, allowing the model to return multiple simultaneously executable tool call instructions in a single inference.74% similarUnverifiedOpenAI's API allows developers to specify calls to a particular version (e.g., gpt-4-0613) and promises that version will remain stable within a certain period.73% similar
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