meta.ai is inaccessible in a large portion of world territories, but the Llama 3.1 70B and 405B are also available in https://hf.co/chat
Additionally, all Llama 3.1 models are available in https://api.together.ai/playground/chat/meta-llama/Meta-Llam... and in https://fireworks.ai/models/fireworks/llama-v3p1-405b-instru... by logging in.