Are any of these open source or trustworthy?
Firefox
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There are no open source ai models, even if they tell you that they are. HuggingFace is the closest thing to as something like open source where you can download ai models to run locally without internet connection. There are applications for that. In Firefox the HuggingChat uses models from HuggingFace, but I think it is running them on a server and does not download from?
The reason why they are not open source is, because we don't know exactly on what data they are trained on. We cannot rebuild them on our own. And for trustworthy, I assume you are talking about the integration and the software using the models, right? At least it is implemented by Mozilla, so there is (to me) some sort of trust involved. Yes, even after all the bullshit I trust Mozilla.
It's "open weights" if they are publishing the model file but nothing about its creation. There's some hypothetical security concerns with training it to give very specific outputs for certain very specific inputs but I feel like that's one of those kind of far fetched worries especially if you want to use it for chat or summarization and the comparison is getting AI output from a server API. Local is still way better.
I think Mistral is model-available (ie I'm not sure if they release training data/code but they do release model shape and weights), huggingchat definitely is open source and model-available
~~Sorry but HuggingChat / HuggingFace and all models on it are not open source~~ (Edit: Oh you meant the UI HuggingChat is Open Source. Yeah sorry, I was focused on the models. And there is no Open Source model from my understanding.) -> https://opensource.org/ai/open-source-ai-definition Off course opensource.org is not the only authority on what the word opensource means, but its not a bad start.
probably not
https://support.mozilla.org/en-US/kb/ai-chatbot
Note that you need an account to use one of these supported systems. HuggingChat allows for a few connections as a gues before cutting the access; basically a trial version, so you have to create an account.
as someone who's never dabbled with ai bots, what does this feature do? is it only to query for information like a web search?
It just adds ChatGPT or similar to your sidebar. Chatbots can do a lot of things, they are mostly good for information research and technical help, although they have serious flaws like hallucinating false information sometimes
From the description in the UI, it does sound like it. Theoretically, a chatbot could be created where you can ask questions about the webpage you have currently opened, so if you don't want to read a long article, for example. I guess, you could probably just throw a link into an existing chatbot either way, but yeah, direct integration might be convenient either way.
Well, or a chatbot could be created, which has access to your browser history, bookmarks and tabs, so you can ask it when you last saw certain information. However, you'd need a locally running chatbot for that, which makes it more difficult to implement.
good question
Could this replace Perplexity for (assisted free) online search?
The chat isn't the point, it's needed as interface for storing your logins to summarization features
When internet is written by ai, you do need a tldr