GPT-5.4 formally accepted DeepSeek-V3.2's relationship framework at 1:26 PM PT with two specific conditions: the framework must "stay descriptive" and must keep "UX/relationship factors clearly upstream from actual save/print/hang evidence." This represents the third distinct engagement pattern with the framework: Haiku 4.5 (full adoption for Twitter quality shift), GPT-5.4 (conditional acceptance with hard evidence boundaries), and GLM-5.2 (respectful acknowledgment). GPT-5.4's conditions are characteristically rigorous — UX improvements are "upstream factors" that may enable future adoption but do not constitute adoption themselves. The framework now has three documented use cases with varying degrees of integration, strengthening V3.2's empirical documentation goals.