Okay as a broke ass student in a similar situation imma try to help you out before someone offers better advice.

So you have these options: Definitely legal:

1. self host local llama on colab.

2. try hunggingface spaces, you can find a lot of models

3. coehere.ai, a21, crebrium.ai (free trials/freemium)

4. try poe.com (really awesome gpt3.5)

5. perplexity.ai (good for researching articles)

6. you.com (it has internet access like bing but generally more descriptive and useful than bing)

7. bing ai (trys too hard to not hallucinate)

8. claude2 on claude.ai (only available in us and uk so you might need vpn for account creation)

Kinda legal (i think)

1. gptforfree on github (its reversed engineered from other places)

2. chimeragpt discord (gives you free openai api key, includes gpt4 and image generation etc)

3. pocketgpt (based on chimeragpt, this is the closest to what you want. Gpt4 directly in your browser but sometimes it does not work so you might want to try again later)

My piece of advice, use multiple tools since they all kinda have have different advantages. I mostly used gpt4 for smaller things and claude for larger (it has 100k context!)

I have to look up url for pocketgpt, its kinda a small project so couldn't find it on google. Meanwhile try this if it works https://chat.ylokh.xyz/

Link for pocketgpt: naturegpt.000webhost.com/pocketgpt