When will the sped-up model be generally available?

The article states it is a preview, so a general availability date is not specified.

How much faster is the new version?

Specific speed improvements are not detailed in the announcement.

Is this model open source?

OpenAI's latest powerful models are typically proprietary, though this specific preview's licensing is not stated.

OpenAI Launches Speedy Model Preview for Enterprise

OpenAI is launching a preview of a sped-up version of its latest powerful model to target enterprise users. This update aims to improve inference speed for high-volume business applications.

OpenAI Launches Speedy Model Preview for Enterprise

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