TIP 💡 Our :nitro and :floor model variants tap into service tiers, not just sorting Example: "~openai/gpt-latest:nitro" has many features packed into 1 model slug: 1. ~latest alias resolves to the latest gpt model 2. :nitro sorts endpoints by measured throughput 3. (NEW) :nitro admits priority service tier endpoints into the pool, competing on speed alongside the defaults