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Physics-Inspired PFGM++ Trumps Diffusion-Only Models in Generating Realistic Images

  Recent years have witnessed astonishing progress in generative image modeling, with neural network-based models able to synthesize increasingly realistic and detailed images. This rapid advancement is quantitatively reflected in the steady decrease of Fr√©chet Inception Distance (FID) scores over time. The FID score measures the similarity between generated and real images based on feature activations extracted from a pretrained image classifier network. Lower FID scores indicate greater similarity to real images and thus higher quality generations from the model. Around 2020, architectural innovations like BigGAN precipitated a substantial leap in generated image fidelity as measured by FID. BigGAN proposed techniques like class-conditional batch normalization and progressive growing of generator and discriminator models to stabilize training and generate higher resolution, more realistic images compared to prior generative adversarial networks (GANs).  The introduction of BigGAN and

GPT 4 Vision: ChatGPT Gets Vision Capabilities and More in Major New Upgrades

 Artificial intelligence (AI) has made immense strides in recent years, with systems like ChatGPT showcasing just how advanced AI has become. ChatGPT in particular has been upgraded significantly, gaining capabilities that seemed unbelievable just a short time ago. In this extensive article, we'll dive into these new ChatGPT features, including integrated image generation through DALL-E 3, vision capabilities with GPT-4, and an overhauled conversation mode.

Beyond ChatGPT, there are many other exciting AI advancements happening. New generative video AI models are producing remarkably smooth and detailed animations. Open source voice cloning now allows near-perfect voice mimicking with just seconds of audio. And video games are being created featuring AI-generated characters that can hold natural conversations. Read on for an in-depth look at these innovations and more.

ChatGPT Upgrades: Integration with DALL-E 3

Earlier this year, OpenAI unveiled DALL-E 3, their most advanced image generation model yet. DALL-E 3 can create stunning photorealistic images, high-resolution artwork, and seamless image edits from text prompts. Now, DALL-E 3 is being integrated directly into ChatGPT, allowing the conversational agent to provide visualized examples and generate images on demand.

This integration makes ChatGPT an even more powerful creative tool. As a text-based system, ChatGPT has limits in fully conveying visual concepts. But with DALL-E 3, ChatGPT can now produce detailed images to supplement its responses. Users on Twitter have been testing the capabilities of this integration, prompting ChatGPT to create increasingly absurd and psychedelic Pepe the Frog images. With each iteration, ChatGPT comes up with creative new renditions in different artistic styles, from ancient Egyptian hieroglyphics to surrealist paintings.

This showcases how ChatGPT leverages its conversational strengths to iteratively improve images through DALL-E 3. By analyzing the prompt and previous images, ChatGPT determines what tweaks and changes are needed to make the image more rare, weird, or unconventional. The integration allows both systems to play off each other’s strengths in a complementary way not possible before. As more users gain access to DALL-E 3, expect to see creators utilizing it in tandem with ChatGPT for all manner of inventive projects.

Adding Computer Vision to ChatGPT with GPT-4

ChatGPT is also receiving a significant upgrade to allow computer vision capabilities through OpenAI's GPT-4 model. Previously, ChatGPT could only process and respond to text prompts. But now, with GPT-4's vision functionality added in, ChatGPT can interpret and reason about visual inputs too.

OpenAI showcased an example where ChatGPT was shown an image of a bicycle and asked how to lower the seat. ChatGPT then circled the specific seat adjustment lever in the image, and also provided photos of bike tools and manuals to reference. This demonstrates how ChatGPT can now leverage visual context just like a human.

Online users have been testing the vision capabilities in creative ways. One user shared photos of handwritten math homework, prompting ChatGPT to solve the problems depicted visually. In another example, someone pasted an image of a hand-drawn website mockup. ChatGPT proceeded to generate full HTML and CSS code based on the crude drawing to recreate the layout.

The implications of adding vision to ChatGPT are enormous. It can now analyze photos, videos, diagrams, graphs, and other visual content to provide informed responses. ChatGPT could scrutinize an engineering diagram to explain how a machine works or study a sports playbook to suggest strategic decisions. It also opens up possibilities like translating text from photographed documents in other languages.  

This technology won't be perfect right away; ChatGPT still struggles with certain visual tasks like image captchas. But its visual reasoning abilities will rapidly improve with more training data. And already, ChatGPT's vision capabilities far exceed any previous AI systems. With GPT-4's vision, ChatGPT is becoming a multi-modal assistant that can service textual and visual information needs.

An Upgraded Conversational Experience

ChatGPT is receiving another major upgrade to improve the user experience when engaging in prolonged conversations. Previously, users had to input multiple prompts to have a back-and-forth chat with ChatGPT, and it would frequently lose track of context.

Now, OpenAI is implementing a dedicated conversation mode that allows users to chat naturally with ChatGPT over an extended period. You can enable conversation mode through buttons on the ChatGPT mobile apps and website. When activated, ChatGPT will follow the dialogue flow, remember important details, and overall act in a more assistant-like manner.  

This has significant advantages. Lengthy conversations with ChatGPT will feel much smoother and more natural. It means users don't have to constantly re-summarize the background or repeat queries multiple times. And importantly, ChatGPT will stay consistent with facts and Personas established during the chat.

OpenAI CEO Sam Altman stated that this conversational upgrade essentially brings ChatGPT up to parity with human capabilities in the text domain. And that matches user experiences so far—testers have held impressively cogent and logical discussions spanning hours with the upgraded conversational ChatGPT.

With conversation mode, ChatGPT becomes far more useful for tutoring, interview prep, planning sessions, or any activity requiring an extended intelligent dialogue. Users feel like they're conversing with a real person who comprehends context and remembers facts. It showcases the remarkable strides conversational AI has achieved lately.

This overhaul wasn't easy technically. Under the hood, OpenAI revealed they had to build an episodic memory system so ChatGPT could recall earlier parts of a conversation. They also improved consistency and removed the need for conversation-breaking clarification statements. Altogether, it required significant architectural changes to support this more natural chat experience.

But all that effort was well worth it. With its vision upgrade and now conversation mode, ChatGPT is becoming an AI assistant that can see, converse, and create—getting us that much closer to the human-level AI dream.

Emerging AI Video Generation Models

Beyond ChatGPT, the generative AI space has seen rapid progress developing models for high-quality video creation. Previously, services like RunwayML and Pabs were some of the only options for AI-generated video. Now, new players are emerging to move the technology forward.

One example is Genmo AI, who recently unveiled an AI video generator called Replay. Replay leverages diffusion models to produce HD quality video from text prompts. The videos have remarkably smooth motion and sharp detail. Replay also seems highly capable at depicting close-ups of people and animals, which past systems struggled with.

Genmo AI designed Replay to be user-friendly too. It can interpret straightforward prompts like “mermaid” or “futuristic city” without much fine-tuning needed. And you can access Replay directly from Genmo's website without any waitlists. So Replay provides an easy way for creators to kickstart AI video projects.

It’s an exciting time for AI video. New models are now reaching the fidelity needed for many real-world applications. Soon creators may rely on AI tools as heavily for video content as they do for images today. As companies continue developing these models, expect rapid leaps in the quality and diversity of AI-generated video.

Voice Cloning with Just 3 Seconds of Audio

AI has also made big strides recently in replicating and synthesizing human voices. Now, open source voice cloning projects allow anyone to clone a voice with just a few seconds of sample audio.

For instance, the Github project AutoVoice Clone lets you clone voices using as little as 3 seconds of cleaned audio. It utilizes a convolutional vocoder architecture to analyze the vocal qualities and speech patterns contained even in short samples. From this, it can generate new speech that closely imitates the original voice.

The cloning works for a variety of languages too. Online creators have demoed the tool by cloning voices in English, Chinese, French and more. The results sound very convincing, capturing the tone and inflections of the original speaker.

Having access to quality voice cloning can benefit many fields. Media producers can create voiceovers or dialogue without requiring voice actors. Translated speeches and lectures could retain the original speaker's vocal identity. The technology also raises concerns about deepfakes and misinformation—an issue these open source projects are trying to get ahead of.

Nevertheless, the capabilities of these voice cloning AIs are undeniable. They demonstrate how even short audio snippets contain enough data for AI systems to extract someone's essential vocal features. As the tools improve, expect synthetic voices to become nearly indistinguishable from real ones.

AI-Generated Characters Bring Video Games to Life

Video game development may be revolutionized by new AI systems that can generate interactive game characters on the fly. Traditionally, video game characters are painstakingly scripted by writers to allow player interaction. But AI models are now advanced enough to improvise conversations in real-time.

For instance, one AI demo placed users in a text-based murder mystery game. To solve the mystery, you question different AI-controlled characters about their alibis and backstories. But here's the amazing part—there's no script whatsoever. The AI characters converse naturally using AI, making up personalities and details as they go.

This automated character generation could massively expand the possibilities for dynamic and personalized narratives in games. Every playthrough could feature completely unique characters, stories, and endings. The AI could also customize conversations based on the player's decisions and relationships within the game.

There are still challenges, like ensuring the AI conversations remain coherent over long periods. But the demos prove the core technology already works surprisingly well.

It's an exciting frontier that blends conversational AI like ChatGPT with interactive fiction and open-world games. Soon players may regularly converse with AI game characters that feel as real and multidimensional as human creations.

The Future of AI Creativity

From upgraded ChatGPT to voice cloning, these innovations offer just a sample of the rapid progress in AI systems. And while the present capabilities are already impressive, the future potential is even more thrilling. Here are some closing thoughts on what may be possible down the line as AI creativity keeps advancing.

- Seamless mixed media - Future AI could synthesize multiple data types together, like generating a video complete with customized dialogue and music.

- Local generation - Systems may eventually run fully locally to enable private media creation without cloud reliance.

- Complete virtual worlds - AI could construct entire interactive game worlds, characters, dialogue, sound and all.

- Democratized creativity - As barriers lower, everyone may access tools once only available to elite professionals.

- Ethical risks - Societal challenges like misinformation and job loss will require ongoing diligence.

- Beyond human limitations - AI creativity could explore possibilities and connections our human minds can't conceive.

This period represents a historic inflection point in AI and creativity. And like any transformative technology, it brings both promise and peril moving forward. But if stewarded effectively, these systems could unlock new realms of human imagination while empowering more inclusive creativity. 


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