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多针检索是 Sonnet 4.6 的能力断崖

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c

我需要从 300 页技术报告中提取关键事实

r

locate@document_analysis/long_pdf_extraction

C'

多章节交叉引用和引用精度用 Opus 4.8。单次结构化提取且成本敏感用 Sonnet 4.6。无论模型如何,输出都必须回源验证。

决策栈

使用

structured PDF, single extraction pass, cost-sensitive

claude/sonnet-4.6
使用

multi-section cross-reference, citation accuracy required, >100 pages

claude/opus-4.8
避免

output will be used without manual verification

openai/gpt-5.5
验证

any model output used for citation

human

认知转移

模型层
ID关系执行体结果输出
CT-D4-001locate@cross_sectionclaude/opus-4.8已接受strong multi-needle retrieval; improved citation precision; cheaper token cost in workflow tests
CT-D4-002locate@cross_sectionclaude/sonnet-4.6有边界matches Opus on single-pass structured docs; degrades on multi-needle retrieval
CT-D4-003validate@citationopenai/gpt-5.5拒绝高幻觉率使未验证提取不可靠
E-D4-001有边界

Opus 4.8 on 8-needle 1M MRCR v2: 76%; Sonnet baseline: 18.5%

E-GLOBAL-010
E-D4-002有边界

Sonnet 4.6 matches Opus 4.6 on OfficeQA enterprise document reading

E-GLOBAL-005
E-D4-003有边界

GPT-5.5 hallucination rate 86% on AA-Omniscience

E-GLOBAL-003