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LLaMA: A foundational, 65B-parameter large language model

ai.facebook.com

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Re: LLaMA: A foundational, 65B-parameter large language model

#91

(creator of gpt index / llamaindex here https://github.com/jerryjliu/gpt_index ) Funny that we had just rebranded our tool from GPT Index to LlamaIndex about a week ago to avoid potential trademark issues with OpenAI, and turns out Meta has similar ideas around LLM+llama puns :). Must mean the name is good though! Also very excited to try plugging in the LLaMa model into LlamaIndex, will report the results.

gpt-index is awesome! What should I study to understand the inner workings a bit better?

Re: LLaMA: A foundational, 65B-parameter large language model

#92

This blog post is terrible at listing the improvements offered by the model, the abstract is better: > We introduce LLaMA, a collection of foundation language models ranging from 7B to 65B parameters. We train our models on trillions of tokens, and show that it is possible to train state-of-the-art models using publicly available datasets exclusively, without resorting to proprietary and inaccessible datasets. In par…

> We release all our models to the research community. This is yet more evidence for the "AI isn't a competitive advantage" thesis. State-of-the-Art is a public resource, so competing with AI offers no "moat".

> We release all our models to the research community.

And from the FB blogpost [0] "Request Form Thank you for your interest in Meta AI’s LLaMA (Large Language Model Meta AI) models. To request access to the models, please fill out this form, and we'll review and let you know if your use case is approved. The information you provide below will be used solely to assess eligibility to access these models."

So much for "releasing" the model for research community.

[0] https://ai.facebook.com/blog/large-language-model-llama-meta...

Re: LLaMA: A foundational, 65B-parameter large language model

#93
post #74

Earlier quoted context omitted.

Yes but fine tuning for RL is not expected to be hard. You're essentially limited by how much human feedback is available, so it's very different from training the foundational model on random bulk data.

At this point I fully expect that someone will release a usable RLHF-fine-tuned language model that can run on consumer hardware, based on the methodology used for LLaMA (and other similar papers e.g. https://github.com/FMInference/FlexGen ), at some point in the next 6-24 months.

What are the functional steps that need to happen to get to that point ?

Re: LLaMA: A foundational, 65B-parameter large language model

#95
"we are publicly releasing LLaMA"

"Access to the model will be granted on a case-by-case basis to academic researchers"

They keep saying the word 'release' but I don't think they know what that word means. There are perfectly good words in the English language to describe this situation without abusing "release." They "will begin to grant access to a select few". Nothing about that releases the model, or their control, which they are not doing and shouldn't imply.

Re: LLaMA: A foundational, 65B-parameter large language model

#96
post #38

The most interesting snippet in the paper I think is this: > For instance, LLaMA-13B outperforms GPT-3 on most bench- marks, despite being 10× smaller. We believe that this model will help democratize the access and study of LLMs, since it can be run on a single GPU.

Does this show how you inefficient GPT3 is or how easy their model can be disrupted? The way they will need to keep business is innovate faster with a usable commercial product.

Re: LLaMA: A foundational, 65B-parameter large language model

#97
How does token->embedding lookup work with 1.4T BPE tokens? Since there are more tokens than the 65B parameters it must be doing some sort of interesting thing based on the merge operations. Is it different from what other GPT models with ~100k tokens are doing?

At inference, how many of those tokens are used? (they mention most tokens are used only once during training, so the must be very long sequences.)

Re: LLaMA: A foundational, 65B-parameter large language model

#99
post #36

I was surprised to see this citation in the linked paper > Alan M Turing. 2009. Computing machinery and intelligence Did he invent a time machine too?

It is undecidable to determine whether a manuscript has terminated, or whether it will continue being revised forever.

Re: LLaMA: A foundational, 65B-parameter large language model

#100

Quick notes from first glance at paper https://research.facebook.com/publications/llama-open-and-ef... : * All variants were trained on 1T - 1.4T tokens; which is a good compared to their sizes based on the Chinchilla-metric. Code is 4.5% of the training data (similar to others). [Table 2] * They note the GPU hours as 82,432 (7B model) to 1,022,362 (65B model). [Table 15] GPU hour rates will vary, but let's give a ra…

>* 65B model's performance is broadly comparable to PALM-540B. Not a small feat, but also could indicate the benefits of good model-vs-token size ratios [Tables 3,4,5,6]. Their conjecture for underperforming on MMLU (multitask language understanding) compared to PALM-540B and Chinchilla-70B is smaller fraction of books and academic training data.*

what do you mean by this ? The OpenAI papers talk roughly about model performance scaling by parameters. does this show the other way ?

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