AIME 2025 + GSM8K at TP=1/2/4. Quality on par across engines/TP. Opposite perf scaling: xserv TPOT improves with TP (21->17->15ms) while llama.cpp row-split regresses over PCIe (10->19->20ms), crossing over so xserv is faster at TP=4. Includes the clean same-path bench-tp scaling (58/76/86 tok/s). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>