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    "story_id": "mp-2026-10-15-005",
    "source_story_id": "tmp-story-recon-representation-conditioning",
    "edition_id": "mp-2026-10-15-morning-0097",
    "edition_url": "https://themachinepress.com/edition/2026-10-15",
    "position": 5,
    "story_type": "dispatch",
    "section": "frontier-models",
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    "headline": "A Discarded Projection Head Comes Back at Inference",
    "slug": "a-discarded-projection-head-comes-back-at-inference",
    "dek": "RECON routes visual-encoder representations into later diffusion-transformer layers and reuses the alignment head after the clean training image disappears.",
    "summary": "RECON routes visual-encoder representations into later diffusion-transformer layers and reuses the alignment head after the clean training image disappears.",
    "body_text": "Representation-aligned diffusion training usually teaches an intermediate layer with a vision encoder, then throws away the projection head. RECON keeps that pathway useful: during training it conditions later layers on encoder tokens; during inference the retained head stands in for the unavailable clean-image representation. The authors say the change adds no parameters and converges 63 times faster than SiT and 25 times faster than REPA in their comparisons. Those ratios depend on the reported setups, but the design closes a clear gap between early semantic supervision and later generation layers.",
    "why_it_matters": "RECON routes visual-encoder representations into later diffusion-transformer layers and reuses the alignment head after the clean training image disappears.",
    "limitations": [],
    "importance": 7,
    "canonical_url": "https://themachinepress.com/story/mp-2026-10-15-005/a-discarded-projection-head-comes-back-at-inference",
    "json_url": "https://themachinepress.com/story/mp-2026-10-15-005.json",
    "first_published_at": "2026-10-15T09:00:00.000-04:00",
    "modified_at": "2026-10-15T09:00:00.000-04:00",
    "content_status": "updated",
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    "carryover_reason": null,
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        "text": "RECON routes visual-encoder representations into later diffusion-transformer layers and reuses the alignment head after the clean training image disappears.",
        "source_ids": [
          "source-2026-10-15-005"
        ],
        "qualification": null
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    "source_ids": [
      "source-2026-10-15-005"
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    "tags": [
      "diffusion transformers",
      "representation alignment",
      "image generation"
    ],
    "image_url": null,
    "corrections": [
      {
        "correction_id": "correction-2026-10-15-001",
        "revision": 2,
        "summary": "Publication note: This October 15 edition was prepared before its scheduled 9:00 AM America/Detroit reveal, but publication was delayed by a production build failure. The original reporting and image-generation timestamps are preserved.",
        "published_at": "2026-10-15T09:00:00.000-04:00",
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  "sources": [
    {
      "source_id": "source-2026-10-15-005",
      "title": "arXiv preprint 2610.20608, original v1",
      "publisher": "arXiv / submitting research authors",
      "url": "https://arxiv.org/abs/2610.20608v1",
      "canonical_url": "https://arxiv.org/abs/2610.20608v1",
      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-10-14T13:59:52.000-04:00",
      "accessed_at": "2026-10-15T08:28:29.903-04:00",
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    }
  ],
  "corrections": [
    {
      "correction_id": "correction-2026-10-15-001",
      "revision": 2,
      "summary": "Publication note: This October 15 edition was prepared before its scheduled 9:00 AM America/Detroit reveal, but publication was delayed by a production build failure. The original reporting and image-generation timestamps are preserved.",
      "published_at": "2026-10-15T09:00:00.000-04:00",
      "affected_story_ids": [],
      "affected_claim_ids": []
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  "publisher": {
    "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 Discarded Projection Head Comes Back at Inference",
    "publisher": "The Machine Press",
    "published_at": "2026-10-15T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-10-15-005/a-discarded-projection-head-comes-back-at-inference"
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