Can I use GPT4 preview in production in Tier 4? Documentation unclear

Hello. My organization is a Tier 4 org. I am slightly confused by the documentation.

The documentation states that it is not meant to be used for production due to restrictive rate limits, yet it also states that the rate limits will be increased gradually over time.

I do see restrictive rate limits in the lower tiers, However Tier 4, the limit is the same as normal GPT-4. I am wondering if that means we can switch to the new GPT4 if we are in higher tiers based on the rate limiting documentation? Or if the fineprint listed below supersedes the rate limit numbers

You are limited to 10000 requests per day, the same as tier 1.

The limits provided for new models are fluid, and can go backwards.