It didn't take long for perplexity, anyscale, together.ai, groq, deepinfra, or lepton to all host mistral's 8x7B model, both faster and cheaper then Mistral's own api.
https://artificialanalysis.ai/models/mixtral-8x7b-instruct/h...
https://artificialanalysis.ai/models/mixtral-8x7b-instruct/h...
All of the current frameworks support MoE and sharding among GPUs so I don't see what the issue is.