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Yes, GPT-4 Turbo is currently accessible through an API preview, as announced by OpenAI at its first developer conference. This new model is trained on information up to April 2023, providing a more recent knowledge base compared to the previous GPT-4 version, which was trained on data up to September 2021.
GPT-4 Turbo has several improvements and new features. It supports a larger context window of 128,000 tokens, equivalent to approximately 300 pages of a standard book. This expanded capacity allows it to perform more complex tasks by accepting more input. Additionally, it offers developers more control, including a JSON mode, the ability to call multiple functions simultaneously, logging opportunities, and reproducible output.
Functionally, GPT-4 Turbo excels at tasks that require strict adherence to instructions, such as generating specific formats such as XML or JSON. It also supports image prompts, text-to-speech requests and integrates DALL-E 3, a feature first introduced in October.
From a cost perspective, GPT-4 Turbo offers a more affordable solution for developers. The input cost is only $0.01 per 1,000 tokens, as opposed to the $0.03 charged by GPT-4, while each output costs $0.03 per 1,000 tokens. OpenAI claims that the new GPT-4 version is three times cheaper than its predecessors.
OpenAI aims to release a production-ready Turbo model in the coming weeks, but has not specified an exact date. The company also unveiled improvements and lower prices for the GPT-3.5 Turbo model, which will include a 16K context window as standard and the same functional updates as GPT-4 Turbo.
In summary, GPT-4 Turbo is a more powerful and cost-effective AI model, providing improved functionality and a more up-to-date knowledge base. It is currently available for developer preview and is expected to be production ready in the coming weeks.
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