Unleash the Power of OpenAI DevDay: GPT4V x TTS Demo Tutorial

Unleash the Power of OpenAI DevDay: Create Voice-Over Videos with GPT-4V and Text-to-Speech. Explore how to build a multimodal app that automatically generates voiceovers from video frames using the latest OpenAI models.

July 14, 2024


Unlock the power of the latest OpenAI updates and explore innovative ways to enhance your digital experiences. Discover how to leverage GPT-4V, text-to-speech, and other cutting-edge features to build captivating, multi-modal applications that streamline workflows and unlock new possibilities.

Unlock the Power of OpenAI's Latest Features: Explore GPT4V and TTS Integration

In this section, we'll dive into the exciting possibilities unlocked by OpenAI's recent updates, focusing on the integration of GPT4V and text-to-speech (TTS) capabilities. These advancements enable us to build more engaging and interactive applications that leverage the power of large language models and multimodal AI.

We'll explore a practical example where we create a video voice-over generator. This tool allows users to upload a video, provide a prompt, and automatically generate a voice-over narration that seamlessly syncs with the video. The process involves converting the video into individual frames, passing them to GPT4V to generate a script based on the prompt, and then using a TTS model to create the audio track. Finally, we'll merge the video and audio together to produce the final result.

Through this hands-on demonstration, you'll learn how to leverage OpenAI's latest features, including GPT4V and TTS, to build innovative applications that push the boundaries of what's possible with AI-powered content creation and automation. Get ready to unlock new possibilities and explore the exciting future of multimodal AI-driven experiences.

Automate Website Optimization with AI-Powered Recommendations

With the latest advancements in OpenAI's models, it's now possible to automate the process of website optimization. By leveraging GPT-4V, you can create an AI-powered tool that can analyze any website's landing page and provide concrete recommendations on how to improve it.

This tool takes the URL of a website as input, and then uses GPT-4V to thoroughly examine the landing page. The AI model evaluates factors such as content structure, visual design, user experience, and conversion optimization. Based on this analysis, the tool generates a detailed report outlining specific suggestions to enhance the website's effectiveness.

The recommendations can span a wide range of areas, from improving the clarity of the value proposition to optimizing call-to-action placement. By combining this AI-driven insight with the ability to automatically translate those ideas into actual front-end code using other AI tools, the future of growth hacking becomes incredibly powerful.

Imagine being able to simply take a screenshot of a website, ask GPT-4V for improvement ideas, and then have those suggestions instantly implemented. This level of automation can dramatically accelerate the website optimization process, allowing businesses to quickly iterate and improve their online presence.

The potential of this technology is truly exciting, as it empowers anyone, regardless of their technical expertise, to leverage the power of AI to enhance their digital assets. As we continue to explore the capabilities of OpenAI's latest releases, the possibilities for innovative, AI-driven applications are endless.

Interactive Video Narration: Unleash Your Creativity with AI-Generated Voice Overs

In this section, we'll explore how to leverage the latest advancements in OpenAI's models to create interactive video narrations. By combining the power of GPT-4 Turbo for text generation and the text-to-speech capabilities, we can seamlessly transform any video into a dynamic, AI-narrated experience.

The process is straightforward and highly customizable. First, we'll extract individual frames from the input video, then pass them to GPT-4 Turbo to generate a captivating script based on the visual content. Next, we'll use the text-to-speech model to convert the generated script into an audio file, which we'll then merge with the original video to create the final, narrated output.

This approach allows for a wide range of applications, from automatically generating voice-overs for marketing videos to creating interactive educational content where users can explore the visuals while listening to AI-generated explanations. The flexibility of this system enables you to unleash your creativity and explore new ways of engaging your audience through the power of AI-driven multimedia experiences.

Building the Voice Over Generator: A Step-by-Step Walkthrough

To build the voice over generator, we'll go through the following steps:

  1. Create a Video to Frames Function: This function will take a video file, create a temporary file, get the video duration, and then turn the video into multiple JPEG frames.

  2. Implement the Frame to Story Function: This function will take the frames generated in the previous step and a prompt, then use the GPT-4 Turbo model to generate a script based on the images.

  3. Develop the Text to Audio Function: This function will take the text generated by the Frame to Story function and use the OpenAI text-to-speech model to create an audio file.

  4. Merge the Audio and Video: The final step is to merge the generated audio file with the original video to create the complete voice-over video.

The code for each of these functions is provided in the previous transcript, and the overall process is tied together in the main() function, which handles the user interface and orchestrates the various steps.

The key aspects of this implementation are:

  • Leveraging the power of GPT-4 Turbo to generate a script based on the video frames
  • Using the OpenAI text-to-speech model to convert the generated script into an audio file
  • Combining the original video and the generated audio to create the final voice-over video

This approach allows you to quickly and easily create voice-over videos from any short video clip, making it a powerful tool for content creation, video editing, and more.


The release of OpenAI's latest updates, including the GPT-4V model, has opened up new possibilities for building interesting and innovative products. The ability to automatically analyze website landing pages, generate voice-over scripts based on video frames, and seamlessly integrate text-to-speech capabilities has the potential to revolutionize the field of growth hacking and content creation.

The demonstration of creating a video voice-over generator showcases the power of these new tools. By leveraging the GPT-4V model to generate a story based on video frames and then using the text-to-speech model to create the audio, the process becomes streamlined and efficient. This type of application can be further expanded to include other modalities, such as image generation or multimodal interactions, further enhancing the capabilities of the system.

The author's excitement about the potential of these new releases is evident, and they encourage the audience to explore and experiment with these tools to build their own innovative applications. The promise of more videos exploring the assistant API and other new features suggests that the author is committed to sharing their knowledge and insights, which will be valuable for the community.

Overall, the conclusion highlights the transformative potential of OpenAI's latest updates and encourages the audience to embrace the opportunities they present to create more interesting and impactful products.