> They still suck at explaining which model they serve is which, though.

"they" in this sentence probably applies to all "AI" companies.

Even the naming/versioning of OpenAI models is ridiculous, and then you can never find out which is actually better for your needs. Every AI company writes several paragraphs of fluffy text with lots of hand waving, saying how this model is better for complex tasks while this other one is better for difficult tasks.

Both Deepseek and Claude are exceptions. Simple versions and Sonnet is overall worse but faster than Opus for the same version.