Claude has this 45 messages limit per 5 hours for pro subs as well. Is there any way to get around it?

Claude has 3 models and I have been mostly using sonet. From my initial observations, these limits apply for all the models at once.

I.e., if I exhaust limit with sonet, does that even restrict me from using opus and haiku ? Is there anyway to get around it?

I can also use API keys if there’s a really trusted integrator but help?

Update on documentation: From what I’ve seen till now this doesn’t give us very stood out notice about the limitations, they mentioned that there is a limit but there is a very vague mention of dynamic nature of limitations.

Edit (18 July, 2025):

Claude has tightened the limits of Claude Code silently, people are repeatedly facing this issue :: "Invalid model. Claude Pro users are not currently able to use Opus 4 in Claude Code" and also https://github.com/anthropics/claude-code/issues/3566

Make no mistake, I love claude to the core. I was probably in the mid-early adopters of Claude. I love the Artifact generation more than anything. But this limitations are really bad. Some power users are really happy on claude Max plan because they were able to get it to work precisely. I think this is more to do with Prompt engineering, and context engineering. I hope sooner or later, claude can really work like how ChatGPT is accessible now-a-days.

Edit ( 7 sept, 2025):

The fact that this post is still getting so much attention is a testament to Claude not listening to the users. I love Claude and Claude Code too much, and I am a fan of Anthropic adding new features. Unfortunately, this Claude code also hits the “Compacting conversation” too quick - for me atleast, and the limits are a little better honestly. But the cool down period is painful.