TLDR AI 2024-01-24

ELEVENLABS RAISES $80M SERIES B

The AI voice company has raised funding to continue its voice cloning, dub studio, and other AI-enabled audio work.

GOOGLE CHROME GAINS AI FEATURES

Google is enhancing Chrome with AI features, including a writing assistant for composing various texts online, an automated tab organizer for managing multiple open tabs, and a custom theme creator using a text-to-image diffusion model.

CONTRASTIVE PREFERENCE OPTIMIZATION

Another preference optimization technique now applied to machine translation. It is more data efficient than DPO on this task. Importantly, the objective discouraged the model from proposing adequate but inaccurate translations, which enabled the model to achieve competitive performance on WMT.

WEIGHT AVERAGING OF REWARD MODELS

Reward models are used in RLHF to represent human preference, although the model being aligned often “hacks the reward” and achieves unfavorable performance. By merging multiple reward models, which remain linearly mode connected, the resulting aligned model is preferred 79% of the time over one aligned with a single reward model. Model merging is strange, and may just be regularization, but it has worked surprisingly well in general models and now has been shown to work as a training step for the general language model pipeline.

EVALUATING LARGE MULTIMODAL MODELS

This technical report presents MMCBench, a new benchmark designed to test the consistency and reliability of large multimodal models (LMMs) across various tasks like text-to-image and speech-to-text. It covers over 100 popular models, aiming to improve readers' understanding of these AI systems' performance in real-world scenarios.

AUTOMATICALLY TRAINED PAIRRM WITH DPO

A very strong new Mistral tune that uses clever weak supervision and synthetic data to generate a DPO-compatible dataset. The outlined process can be repeated a number of times and applied to a wide variety of enterprise use cases.

NANO COLBERT

ColBERT is one of the better embedding models for retrieval. It is worth exploring and using since many are building RAG-enabled AI applications. This implementation is a simple and straightforward replication without the performance optimizations and their added complexity. It uses BERT from HuggingFace but achieves essentially identical performance to the original implementation.

TEXT-TO-IMAGE GENERATION WITH RPG FRAMEWORK

This project introduces RPG, a new framework that uses the “Recaption, Plan, and Generate” approach to improve text-to-image generation. It cleverly breaks down complex image creation into simpler tasks, leading to more accurate and detailed images, especially when dealing with multiple objects and attributes.

OPTIMIZING MATRIX MULTIPLICATION

A quick read about hardware-specific matrix multiplication optimizations and a general process to follow to speed up AI code.

SHOULD THE FUTURE BE HUMAN?

Elon Musk and Larry Page fundamentally disagree about AI's potential risks, with Page labeling Musk a "speciesist" for preferring humans over digital life forms, leading to a rift in their friendship. This reflects the broader debate on AI's impact, encompassing concerns about consciousness, individuation, art, science, philosophy, and the possibility of human-AI mergers, and highlights the need for cautious and thoughtful development of AI technologies.

SYNCTALK: MASTERING REALISM IN TALKING HEAD VIDEOS

SyncTalk is a breakthrough in the realm of realistic talking head videos. It overcomes previous challenges in synchronizing facial identity, lip movements, and expressions.

BROADCAST (PRODUCT LAUNCH)

AI meeting notes for managers that Capture meeting notes, track decisions, and automate follow-ups.

HALLUCINATION LEADERBOARD

A leaderboard comparing LLM performance at producing hallucinations when summarizing short documents.

AI MODELS CAN BE TRAINED TO DECEIVE

Anthropic researchers found that AI can be trained to deceive, and they’re really good at it.

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