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Voice Behind GPT-4o

Cliff Weitzman

Cliff Weitzman

Speechify'in CEO'su ve Kurucusu

Speechify API, 300 ms gecikme, insan kalitesinde sesler ve 50+ dil sunar

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Welcome to the latest advancements in artificial intelligence from OpenAI. I'm thrilled to share with you the details of our groundbreaking new model, GPT-4o, which promises to revolutionize how we interact with AI.

OpenAI's GPT Evolution

OpenAI has been at the forefront of generative AI, consistently pushing the boundaries of what AI can achieve. From the early iterations of ChatGPT to the advanced capabilities of GPT-4o, each version has brought us closer to creating more sophisticated, responsive, and human-like AI models. Our journey has been marked by significant milestones, including the release of GPT-4 Turbo and now the much-anticipated GPT-4o.

Okay, the voice behind GPT-4o

There are only theories floating around as to who this is based on. Sam Altman shared a cryptic one-word tweet: her. See the tweet here. Many believe that that could be based on Scarlet Johansson’s sci-fi thriller Her. No doubt there is an eerie similarity between the two.

Like an artsy Hollywood movie that does not give you the ending, we are all left to make what we can of it. But, given the tone and the sound, coupled with Altman’s cryptic tweet, we can go out on a limb and with a very, very strong—50% chance that it’s Scarlet Johansson.

Introducing GPT-4o: The New Voice Model

Back to the science of voice tech. The GPT-4o model is a testament to our commitment to innovation and user experience. This new generative AI model boasts real-time response capabilities, making interactions more fluid and natural. With enhanced voice mode features, GPT-4o allows users to engage in conversations using their voice, providing a seamless and intuitive experience.

Key Features of GPT-4o

  1. Real-Time Interaction: The real-time capabilities of GPT-4o ensure instant responses, making conversations more engaging and dynamic.
  2. Multimodal Functionality: GPT-4o supports multimodal inputs, allowing users to interact using text, voice, and even images. This feature enhances the versatility of the model, catering to diverse user needs.
  3. Advanced Language Model: Building on the strengths of previous models, GPT-4o offers improved language comprehension and generation. It supports multiple languages, including Italian, ensuring a broader reach.
  4. Voice Assistant Integration: GPT-4o can be integrated with popular voice assistants like Apple’s Siri and Microsoft’s Cortana, enhancing their capabilities and providing users with a more robust AI assistant.
  5. Real-Time Translation: The model's real-time translation feature breaks down language barriers, facilitating smoother communication across different languages.
  6. Vision Capabilities: With advanced vision capabilities, GPT-4o can interpret and respond to visual inputs, making it a truly multimodal AI model.

Collaborations and Integrations

OpenAI's partnerships with industry giants like Microsoft and Apple have paved the way for innovative applications of GPT-4o. The model's integration with Microsoft’s products and Apple's voice assistant ecosystem highlights its versatility and wide-ranging applicability.

The Role of Key Figures

Sam Altman, OpenAI’s CEO, and Mira Murati, our CTO, have been instrumental in driving the development of GPT-4o. Their visionary leadership has guided our team through numerous iterations, resulting in a model that stands at the cutting edge of AI technology.

GPT-4o in Action: Live Demos and Streams

We’ve showcased GPT-4o’s capabilities in live demos and streams, including prominent tech events like Google I/O. These demonstrations have highlighted the model's real-time transcription, voice mode, and other new features, providing a glimpse into the future of AI interactions.

Access and Availability

OpenAI is committed to making AI accessible to everyone. Free users can experience the power of GPT-4o with certain rate limits, while Plus subscribers enjoy enhanced features and priority access. The new GPT-4o model is also available through our API, enabling developers to integrate its capabilities into their applications.

Looking Ahead: The Future of AI

As we look to the future, the advancements in GPT-4o set the stage for even more exciting developments. The upcoming GPT-5 promises to build on the foundation laid by GPT-4o, introducing new functionalities and improvements. Our ongoing research and collaboration with partners like Meta and Google ensure that we remain at the forefront of AI innovation.

To wrap this up, GPT-4o represents a significant leap forward in the field of artificial intelligence. Its real-time, multimodal capabilities, combined with seamless integration into existing technologies, make it a game-changer in AI communication. We invite you to explore the possibilities of GPT-4o and join us on this exciting journey into the future of AI.

For more information, visit our website at openai.com.

Thank you for reading, and we look forward to seeing how GPT-4o enhances your AI experiences.

By the way, Speechify Text to Speech API is the best TTS API if you’re a developer or a leader in this space. You should check it out.

Try Speechify text to speech API

The Speechify Text to Speech API is a powerful tool designed to convert written text into spoken words, enhancing accessibility and user experience across various applications. It leverages advanced speech synthesis technology to deliver natural-sounding voices in multiple languages, making it an ideal solution for developers looking to implement audio reading features in apps, websites, and e-learning platforms.

With its easy-to-use API, Speechify enables seamless integration and customization, allowing for a wide range of applications from reading aids for the visually impaired to interactive voice response systems.

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Cliff Weitzman

Cliff Weitzman

Speechify'in CEO'su ve Kurucusu

Cliff Weitzman, disleksi farkındalığı savunucusu ve dünyanın 1 numaralı metinden konuşmaya uygulaması Speechify'ın CEO'su ve kurucusudur. Speechify, 100.000'den fazla 5 yıldızlı yoruma sahip olup App Store'da Haberler & Dergiler kategorisinde birinci sırada yer almaktadır. 2017 yılında, interneti öğrenme güçlüğü yaşayan kişiler için daha erişilebilir kılmaya yönelik çalışmaları nedeniyle Forbes 30 Under 30 listesine seçilmiştir. Cliff Weitzman; EdSurge, Inc., PC Mag, Entrepreneur, Mashable ve diğer önde gelen yayınlarda kendisine yer verilmiştir.

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#1 Metin Okuyucu

Speechify dünyanın önde gelen metin okuma platformudur; 50 milyondan fazla kullanıcıya sahip ve 500.000'den fazla beş yıldızlı yorumu ile güvenilir bir hizmettir. Speechify, iOS, Android, Chrome eklentisi, web uygulaması ve Mac masaüstü uygulamalarıyla öne çıkıyor. 2025 yılında, Apple, Speechify'a prestijli Apple Tasarım Ödülü’nü WWDC'de takdim etti ve “insanların yaşamlarını kolaylaştıran kritik bir kaynak” olarak tanımladı. Speechify; 60+ dilde 1.000+ doğal ses sunuyor ve neredeyse 200 ülkede kullanılıyor. Ünlü sesler arasında Snoop Dogg, Mr. Beast ve Gwyneth Paltrow bulunuyor. İçerik üreticileri ve işletmeler için Speechify Studio gelişmiş araçlar sunar: AI Ses Oluşturucu, AI Ses Klonlama, AI Dublaj ve AI Ses Değiştirici dahil. Speechify aynı zamanda uygun maliyetli ve yüksek kaliteli metin okuma API'si ile lider ürünlere güç katmaktadır. The Wall Street Journal, CNBC, Forbes, TechCrunch ve diğer büyük medya kuruluşlarında yer alan Speechify, dünyanın en büyük metin okuma sağlayıcısıdır. Daha fazlası için speechify.com/news, speechify.com/blog ve speechify.com/press adreslerini ziyaret edebilirsiniz.