OpenAI Unveils GPT-4 Turbo, Custom GPTs, and More with Assistants API

Explore the latest announcements from the OpenAI DevDay event, including the ability to create Custom GPTs for specific use cases in the new ChatGPT-4 Turbo.

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GPT-4 Turbo

At DevDay, OpenAI unveiled a suite of new features and updates for developers and ChatGPT users. Among these updates is the ability to create custom GPTs, which allows users to create AI assistants that serve different roles or purposes. This feature is called “GPTs,” and it marks a significant step forward in the development of AI assistants.

Before we dive into the details of GPTs, let’s first explore the latest version of GPT: GPT-4 Turbo. This new version has expanded capabilities, including knowledge of world events up to April 2023 and an impressive 128k context window, allowing it to process over 300 pages of text in a single prompt. Additionally, OpenAI has made updates to GPT-3.5 Turbo, including multimodality, GPT-4 fine-tuning, and price drops for developers. These updates demonstrate OpenAI’s commitment to shaping the future of AI.


  • OpenAI unveiled a suite of new features and updates for developers and ChatGPT users at DevDay.
  • The ability to create custom GPTs marks a significant step forward in the development of AI assistants.
  • OpenAI’s updates to GPT-3.5 Turbo demonstrate their commitment to shaping the future of AI.

GPT-4 Turbo

GPT-4 Turbo is a new AI model introduced by OpenAI, which promises to offer unprecedented efficiency and deeper understanding of recent world events. This model has expanded capabilities, including knowledge of world events up to April 2023 and an impressive 128k context window, allowing it to process over 300 pages of text in a single prompt. Additionally, this model is three times cheaper for input tokens and twice as cheap for output tokens compared to its predecessor, GPT-4.

The new model is currently in preview and accessible to all paying developers. OpenAI has also made updates to function calling, allowing for more accurate and complex multi-function commands in a single message. Furthermore, the introduction of JSON mode for developers is another significant upgrade, ensuring valid JSON outputs, particularly useful for tasks that involve generating specific formats.

Overall, GPT-4 Turbo promises to be an exciting addition to OpenAI’s arsenal of AI models, with its expanded capabilities and cost reduction making it an attractive option for developers.

Assistants API

With the introduction of the Assistants API, OpenAI has made it easier for developers to create AI-powered applications that can handle complex tasks more efficiently. The API provides tools such as a Code Interpreter, Retrieval, and improved function calling, enabling developers to build more nuanced and flexible AI tools. This marks a significant step towards more advanced and capable AI-driven applications.

Updates to GPT-3.5 Turbo

You can now enjoy enhanced performance across various tasks with OpenAI’s GPT-3.5 Turbo model, which includes a default 16K context window. The updates have resulted in a 38% improvement in format following tasks such as generating JSON, XML, and YAML.


GPT-4 Turbo has expanded its capabilities beyond text and now includes image processing. BeMyEyes is one company that has already implemented this feature to assist visually impaired individuals. OpenAI also offers DALL·E 3, which allows developers to integrate image generation into their applications. To prevent misuse, OpenAI has implemented a robust moderation system. Additionally, OpenAI has introduced a text-to-speech API that generates human-quality speech. With different voice presets and model variants, this API is versatile for various applications.

GPT-4 Fine Tuning

You can experiment with GPT-4 fine-tuning, which emphasizes quality and safety improvements. For bespoke solutions, the Custom Models program offers tailored GPT-4 training with exclusive access to custom models.

Price Drops For Developers

You can take advantage of the recent price reductions across various services, including GPT-4 Turbo. Input tokens now cost 3x less than GPT-4 at $0.01, while output tokens are 2x less at $0.03. Additionally, increased rate limits are available to support scaling of applications.

You can rest assured that your intellectual property is safe with OpenAI’s Copyright Shield. This new feature is designed to protect ChatGPT enterprise users and API developers from copyright infringement.

Speech Recognition

You can expect improved performance and image quality from OpenAI’s speech recognition capabilities with Whisper large-v3 and the Consistency Decoder.

Custom GPTs

You can now create tailored versions of ChatGPT for specific purposes using the new GPTs feature from OpenAI. This feature encourages community participation in AI development. The upcoming GPT Store will showcase user-created GPTs.

GPT-4 All Tools

You can use ChatGPT, powered by GPT-4 Turbo, for all your language processing needs. It includes up-to-date information up to April 2023 and eliminates the need to switch between models. You can connect GPT-4 to databases, emails, and more.

Shaping The Future Of AI

OpenAI’s recent DevDay event showcased significant advancements in AI technology, providing developers and businesses with more powerful, efficient, and accessible tools. These developments are poised to shape the future of AI in exciting ways.

Frequently Asked Questions

When Will GPT-4 Turbo Be Released?

OpenAI has not announced an official release date for GPT-4 Turbo. However, the company has stated that it is currently in development and will be released in the near future.

What Are the New Features of GPT-4?

GPT-4 Turbo is OpenAI’s latest generation model. It has an updated knowledge cutoff of April 2023 and introduces a 128k context window, which is the equivalent of 300 pages of text in a single prompt. The model is also 3X cheaper for input tokens and 2X cheaper for output tokens compared to the original GPT-4 model.

How Can I Access GPT-4 Turbo?

Once GPT-4 Turbo is released, it will be available through OpenAI’s API. Developers will be able to access the model by signing up for an API key and integrating it into their applications.

What Is the Difference Between GPT-4 and ChatGPT?

GPT-4 is a language model developed by OpenAI that is designed to generate human-like text based on a given prompt. ChatGPT is a variant of GPT-4 that is specifically trained to generate conversational responses. While both models are based on the same underlying technology, ChatGPT is optimized for generating dialogue.

Is GPT-4 Turbo Currently Available?

No, GPT-4 Turbo is not currently available. It is still in development and has not been released to the public yet.

What Can I Expect from the OpenAI DevDay Event?

The OpenAI DevDay event is a developer conference that showcases the latest advancements in AI technology. Attendees can expect to learn about OpenAI’s latest products and services, as well as hear from industry experts on the future of AI. The event also provides an opportunity for developers to network and collaborate with other professionals in the field.

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