
Joe Hoover
220 posts

Joe Hoover
@JoeEHoover
Automating AI eval @Apple



Do current LLMs perform simple tasks (e.g., grade school math) reliably? We know they don't (is 9.9 larger than 9.11?), but why? Turns out that, for one reason, benchmarks are too noisy to pinpoint such lingering failures. w/ @josh_vendrow @EdwardVendrow @sarameghanbeery 1/5


here is the list of bugs my collaborator and i have made while training this GAN. it's almost unbelievable - misplaced positional argument which caused our discriminator to have 256 layers instead of 3 - missing a detach() somewhere that mattered - extra detach() somewhere else that mattered - improper train() and eval() so the generator and discriminator cheated by communicating via batchnorm - forgot grad norm clipping so everything exploded - forgot to save model to disk - sigmoid on the output of the discriminator and in the loss function (a classic extra sigmoid bug) - at one point we were actually reinitializing the generator parameters at every epoch and it still worked somehow only by systematically locating and eliminating all of these did it start working

Excited to share our new pre-print arxiv.org/pdf/2502.01600 We train a digital agent that solves diverse day-to-day tasks from the AppWorld benchmark by interacting with its stateful environment using API calls. AppWorld is hard! The previous best open-weight agent (Llama 3 70B) reached only a 7% success rate on the hardest test split. Our RL algorithm, LOOP - a PPO variant with Monte Carlo baselines - achieves a 45.7% success rate, 24% over the base Qwen 2.5 32B, and 9% higher than a much larger OpenAI o1.

Meta just launched their biggest language model and it's available on Replicate! This cutting-edge open-source LLM rivals the top closed models. And you can use it with just an API call. Try Meta Llama 3.1 405B Instruct in our playground today: replicate.com/meta/meta-llam…


Amazing news re: our LLM fine-tuning course: All students get $1,000 in free compute credits from @modal_labs and @replicate ($500 each) 💰 Course signups close end-of-day today. You get more compute credits than the course costs 🤯 maven.com/parlance-labs/…











