{"schema_version": "research-pack/1", "object": {"id": "open_weight_frontier", "title": "开源权重前沿", "one_liner": "开源权重模型前沿，与闭源差距的收敛速度"}, "facts": [{"valid_from": null, "valid_to": null, "published_at": null, "collected_at": null, "verified_at": null, "conditions": null, "conversion": null, "id": "fact:c10390f5f0c53b870b0b17c7", "metric_id": "frontier_intel_index", "label": "前沿模型智能指数", "value": 57.0, "value_type": "number", "unit": "分", "raw_value": 57.0, "raw_unit": "分", "observed_at": "2026-09-06", "source_ids": ["src:f8d3e797bde31599242e887c"], "evidence_role": "unknown", "freshness": "unknown", "slug": "frontier_intel_index", "title": "前沿模型智能指数", "at": "2026-09-06", "src": "https://artificialanalysis.ai/models/claude-fable-5-1", "delta": null, "note": "Intelligence Index v4.2 最高分档：Fable 5.1 max with fallback。与站内性价比榜同日转录。搜索引擎里的 66 是旧尺子，不录。", "role": "home", "pending": false, "display_text": "- frontier_intel_index｜前沿模型智能指数｜57.0 分 @ 2026-09-06｜Intelligence Index v4.2 最高分档：Fable 5.1 max 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