Been using OpenAI for most my api use in production and just started with Anhropic. Having to grind up customer tiers once again realy makes it difficult to exp

Been using OpenAI for most my api use in production and just started with Anhropic. Having to grind up customer tiers once again realy makes it difficult to experiment as 'Tier 1' hit it's limit after 15 mins. And no, I do not want to 'contact sales' or wait weeks when I'm merely checking out initial viability. Just let me buy and use my available credits.