OpenAI is making GPT-4 accessible to all paying API customers. They have also announced deprecation for older models of the Completions API, and that those models will no longer be developed or supported. OpenAI recommends users to transition to the Chat Completions API, with improved capabilities.

In March, the company introduced ChatGPT API and now millions of developers can access the GPT-4 API. Currently, existing API developers with a history of successful payments can access GPT-4 API with an 8K context. By the end of the month, new developers will get access to the same, after which OpenAI will start raising rate-limits based on compute availability. 

OpenAI is making GPT-3.5 Turbo, DALL.E and Whisper APIs generally available. They are also working on enabling fine-tuning for both GPT-4 and GPT-3.5 Turbo, which will allow developers to customise and train models for specific tasks. This is expected to be available later this year. 

Push for Chat Completion API

Chat Completions API which was introduced in March accounts for 97% of OpenAI’s API GPT usage. Completions API which was introduced in June 2020, allowed users to interact with language models using freeform text prompts. However, with continuous learning, OpenAI discovered that using a more structured prompt interface leads to improved results, hence the shift to a chat-based paradigm. 

Through structured interface and multi-turn conversation capabilities, developers were able to build conversational experiences and complete tasks via Chat Completions API. There is also increased security with reduced risk of prompt injection attacks. 

OpenAI will work on future models and product improvements on Chat Completions API, and from January 2024, the company will remove all the older completion models which will be replaced with the below ones. 

Source: OpenAI Blog

OpenAI Roadblocks 

OpenAI has been facing a few hiccups in the last few days. GPT-4 API availability comes amidst the news of ChatGPT seeing a decline in numbers. ChatGPT witnessed a decline of 9.7% in June compared to May. Unique visitors to the website dropped by 5.7%, and there was a 8.5% decrease in the amount of time visitors spent on the website. A few days ago, OpenAI retracted their browse feature with Bing that was released two weeks ago from the ChatGPT app, owing to data leakage.