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    "story_id": "mp-2026-11-04-009",
    "source_story_id": "tmp-story-adversarial-speculative-reasoning",
    "edition_id": "mp-2026-11-04-morning-0117",
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    "position": 9,
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    "section": "developer-tools",
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    "headline": "A Draft Model Learns Where It Should Be Rejected",
    "slug": "a-draft-model-learns-where-it-should-be-rejected",
    "dek": "Adversarial speculative reasoning deliberately splits draft and target models at critical long-horizon decisions so the target resamples under cleaner conditions.",
    "summary": "Adversarial speculative reasoning deliberately splits draft and target models at critical long-horizon decisions so the target resamples under cleaner conditions.",
    "body_text": "The paper argues that speculative decoding can alter long agent traces as numerical differences accumulate inside verification windows. Its method identifies critical decision points and trains the draft model to favor an adversarial preference there, causing rejection and a fresh target-model sample. On agentic coding benchmarks, the authors report higher end-to-end success without changing the target model or its nominal output distribution, while training 0.06 to 0.28 percent of hosted parameters. The result reframes a decoding accelerator as a context-precision allocator, but the abstract does not establish gains for all models or tasks.",
    "why_it_matters": "Adversarial speculative reasoning deliberately splits draft and target models at critical long-horizon decisions so the target resamples under cleaner conditions.",
    "limitations": [
      "The result reframes a decoding accelerator as a context-precision allocator, but the abstract does not establish gains for all models or tasks."
    ],
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    "first_published_at": "2026-11-04T09:00:00.000-05:00",
    "modified_at": "2026-11-04T09:00:00.000-05:00",
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    "tags": [
      "speculative decoding",
      "agents",
      "reasoning"
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  "sources": [
    {
      "source_id": "source-2026-11-04-009",
      "title": "arXiv preprint 2611.05345, original v1",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2611.05345v1",
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      "published_at": "2026-11-03T13:45:23.000-05:00",
      "accessed_at": "2026-11-04T08:28:27.560-05:00",
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    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "A Draft Model Learns Where It Should Be Rejected",
    "publisher": "The Machine Press",
    "published_at": "2026-11-04T09:00:00.000-05:00",
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