{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-11-05-015",
    "source_story_id": "tmp-brief-compressionbench",
    "edition_id": "mp-2026-11-05-morning-0118",
    "edition_url": "https://themachinepress.com/edition/2026-11-05",
    "position": 17,
    "story_type": "ticker",
    "section": "benchmarks-evals",
    "editorial_classification": "editorial",
    "headline": "Coding Agents Compress the Model and Miss Different Things",
    "slug": "coding-agents-compress-the-model-and-miss-different-things",
    "dek": "CompressionBench gives agents weights, a storage cap and inference tests; 29 of 36 submissions pass independent verification.",
    "summary": "CompressionBench gives agents weights, a storage cap and inference tests; 29 of 36 submissions pass independent verification.",
    "body_text": "The best agent design per task averages a 3.4 percent perplexity increase over BF16 and 77.33 percent downstream accuracy versus 79.56 percent. Full-model feedback reverses 17 of 79 local rankings, and generation tests catch failures perplexity misses.",
    "why_it_matters": "CompressionBench gives agents weights, a storage cap and inference tests; 29 of 36 submissions pass independent verification.",
    "limitations": [],
    "importance": 8,
    "canonical_url": "https://themachinepress.com/story/mp-2026-11-05-015/coding-agents-compress-the-model-and-miss-different-things",
    "json_url": "https://themachinepress.com/story/mp-2026-11-05-015.json",
    "first_published_at": "2026-11-05T09:00:00.000-05:00",
    "modified_at": "2026-11-05T09:00:00.000-05:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-11-05-015-001",
        "text": "CompressionBench gives agents weights, a storage cap and inference tests; 29 of 36 submissions pass independent verification.",
        "source_ids": [
          "source-2026-11-05-017"
        ],
        "qualification": null
      }
    ],
    "source_ids": [
      "source-2026-11-05-017"
    ],
    "tags": [
      "model compression",
      "coding agents",
      "verification"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-11-05-017",
      "title": "arXiv preprint 2611.06858, original v1",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2611.06858v1",
      "canonical_url": "https://arxiv.org/abs/2611.06858v1",
      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-11-04T13:14:50.000-05:00",
      "accessed_at": "2026-11-05T08:29:24.413-05:00",
      "supports_claim_ids": [
        "claim-mp-2026-11-05-015-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "Coding Agents Compress the Model and Miss Different Things",
    "publisher": "The Machine Press",
    "published_at": "2026-11-05T09:00:00.000-05:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-11-05-015/coding-agents-compress-the-model-and-miss-different-things"
  }
}