Replace Llama 3 8b into 70 instruct and add web search capability to all llm models

[Tabib123]

Description

Replace Llama 3 8b into 70 instruct cause now open launch gpt 4o claude was launching claude 3.5 which have asthetic paerformance so as a brave user i think llama 3 70b instruct is super well and the web search was only working on claude haiku i think add web search on all models ,
llama 3 70b instruct was 'number 2' opensource llm according lmys chatbot arena

Expected result

Llama 3 8b replace to llama 3 70b