Tracker›Changelog›2026-09-01-field-metadata-paragen-ui-treatment-und-1-removed

Fields gone: paragen_ui_treatment, paragen_variants_info

confirmedstructure · field2026-09-01-field-metadata-paragen-ui-treatment-und-1-removed

Instrument state: Schema 15 · v2 · Bookmarklet 2.7 · measure · gpt-5-6

Evidence

Before

{
  "metadata_keys": [
    "paragen_ui_treatment",
    "paragen_variants_info"
  ]
}

Breadth

1/31 prompts · local

Modes

instant

Measuring days

1 Sept 2026 → 2 Sept 2026 · 1 field diffs in events.jsonl

Raw data excerpt (K4-01__instant, 2026-09-01)

{
  "schema_fingerprint.metadata_keys": [
    "can_save",
    "citations",
    "content_references",
    "cot_version",
    "finish_details",
    "instant_answer_used",
    "is_complete",
    "is_visually_hidden_from_conversation",
    "message_source",
    "message_type",
    "model_slug",
    "model_switcher_deny",
    "parent_id",
    "request_id",
    "resolved_model_slug",
    "search_result_groups",
    "selected_sources",
    "serialization_metadata",
    "story_events",
    "turn_exchange_id",
    "working_turn_id"
  ]
}

Daily data of 1 Sept 2026 →

Context

field/metadata-paragen-ui-treatment field/metadata-paragen-variants-info

Impact

No evidenced impact.

Status history

1 Sept 2026	observed
2 Sept 2026	confirmed