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Mixtral 8x22B

mistral.ai

161–170 of 252 posts

Re: Mixtral 8x22B

#161
post #14

"64K tokens context window" I do wish they had managed to extend it to at least 128K to match the capabilities of GPT-4 Turbo Maybe this limit will become a joke when looking back? Can you imagine reaching a trillion tokens context window in the future, as Sam speculated on Lex's podcast?

[deleted]

Re: Mixtral 8x22B

#162
post #77

Earlier quoted context omitted.

Why do we expect this to perform better? Couldn’t a regular network converge on this structure anyways?

Here's my naive intuition: in general bigger models can store more knowledge but take longer to do inference. MoE provides a way to blend the advantages of having a bigger model (more storage) with the advantages of having smaller models at inference time (faster, less memory required). When you do inference, tokens hit a small layer that is load balancing the experts then activate 1 or 2 experts. So you're storing r…

Sounds like the "you only use 10% of your brain" myth, but actually real this time.

Re: Mixtral 8x22B

#163
Dumb question: Are "non-instructed" versions of LLMs just raw, no-guardrail versions of the "instructed" versions that most end-users see? And why does Mixtral need one, when OpenAI LLMs do not?

Re: Mixtral 8x22B

#164

Earlier quoted context omitted.

Four V100s will do. They're about $1k each on ebay.

$1500 each, plus the server they go in, plus plus plus plus.

Sure, but it's still a lot less than 8 h100s.

~$8k for an LLM server with 128GB of VRAM vs like $250k+ for 8 H100s.

Re: Mixtral 8x22B

#165
post #27

Does anyone have a good layman's explanation of the "Mixture-of-Experts" concept? I think I understand the idea of having "sub-experts", but how do you decide what each specialization is during training? Or is that not how it works at all?

Ignore the "experts" part, it misleads a lot of people [0]. There is no explicit specialization in the most popular setups, it is achieved implicitly through training. In short: MoEs add multiple MLP sublayers and a routing mechanism after each attention sublayer and let the training procedure learn the MLP parameters and the routing parameters. In a longer, but still rough, form... How these transformers work is rou…

[flagged]

Re: Mixtral 8x22B

#166

Dumb question: Are "non-instructed" versions of LLMs just raw, no-guardrail versions of the "instructed" versions that most end-users see? And why does Mixtral need one, when OpenAI LLMs do not?

https://platform.openai.com/docs/models/gpt-base

https://platform.openai.com/docs/guides/text-generation/comp...

Re: Mixtral 8x22B

#167

Dumb question: Are "non-instructed" versions of LLMs just raw, no-guardrail versions of the "instructed" versions that most end-users see? And why does Mixtral need one, when OpenAI LLMs do not?

LLM’s are first trained to predict the next most likely word (or token if you want to be accurate) from web crawls. These models are basically great at continuing unfinished text but can’t really be used for instructions e.g. Q&A or chatting - this is the “non-instructed” version. These models are then fine tuned for instructions using additional data from human interaction - these are the “instructed” versions which are what end users (e.g. ChatGPT, Gemini, etc.) see.

Re: Mixtral 8x22B

#168

Dumb question: Are "non-instructed" versions of LLMs just raw, no-guardrail versions of the "instructed" versions that most end-users see? And why does Mixtral need one, when OpenAI LLMs do not?

https://platform.openai.com/docs/models/gpt-base https://platform.openai.com/docs/guides/text-generation/comp...

I appreciate the correction, thanks!

Re: Mixtral 8x22B

#169

Dumb question: Are "non-instructed" versions of LLMs just raw, no-guardrail versions of the "instructed" versions that most end-users see? And why does Mixtral need one, when OpenAI LLMs do not?

LLM’s are first trained to predict the next most likely word (or token if you want to be accurate) from web crawls. These models are basically great at continuing unfinished text but can’t really be used for instructions e.g. Q&A or chatting - this is the “non-instructed” version. These models are then fine tuned for instructions using additional data from human interaction - these are the “instructed” versions which…

Very helpful, thank you.

Re: Mixtral 8x22B

#170
post #107

Earlier quoted context omitted.

That's for an 8B model.

This is over trivializing it, but there isn't much more inherent complexity in training an 8B or larger model other than more money, more compute, more data, more time. Overall, the principles are similar.

Assuming linear growth to number of parameters that's 7.5 figures instead of 6 for 8x22B model.
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