Opus 5 is mind-blowing: not even testing Max, High and xHigh already make rivals look like bots

The user hasn't tested Opus 5 Max yet, but High and xHigh already dwarf Kimi K3 and Qwen 3.8. xHigh is the first model to fully deliver on the benchmark's intent.

• benchmark
• impressive
• Kimi K3
• Claude Opus 5
• Qwen-3.8