🐦 Twitter Post Details

Viewing enriched Twitter post

@AnthropicAI

We introduce a method called preventative steering, which involves steering towards a persona vector to prevent the model acquiring that trait. It's counterintuitive, but it’s analogous to a vaccine—to prevent the model from becoming evil, we actually inject it with evil. https://t.co/VJfZ3u7Lrb

Media 1

📊 Media Metadata

{
  "media": [
    {
      "type": "photo",
      "url": "https://crmoxkoizveukayfjuyo.supabase.co/storage/v1/object/public/media/posts/1951317917775053031/media_0.jpg?",
      "filename": "media_0.jpg"
    }
  ],
  "processed_at": "2025-08-14T07:41:55.371086",
  "pipeline_version": "2.0"
}

🔧 Raw API Response

{
  "type": "tweet",
  "id": "1951317917775053031",
  "url": "https://x.com/AnthropicAI/status/1951317917775053031",
  "twitterUrl": "https://twitter.com/AnthropicAI/status/1951317917775053031",
  "text": "We introduce a method called preventative steering, which involves steering towards a persona vector to prevent the model acquiring that trait. \n\nIt's counterintuitive, but it’s analogous to a vaccine—to prevent the model from becoming evil, we actually inject it with evil. https://t.co/VJfZ3u7Lrb",
  "source": "Twitter for iPhone",
  "retweetCount": 23,
  "replyCount": 9,
  "likeCount": 331,
  "quoteCount": 39,
  "viewCount": 41121,
  "createdAt": "Fri Aug 01 16:23:39 +0000 2025",
  "lang": "en",
  "bookmarkCount": 73,
  "isReply": true,
  "inReplyToId": "1951317913341673553",
  "conversationId": "1951317898313466361",
  "inReplyToUserId": "1353836358901501952",
  "inReplyToUsername": "AnthropicAI",
  "author": {
    "type": "user",
    "userName": "AnthropicAI",
    "url": "https://x.com/AnthropicAI",
    "twitterUrl": "https://twitter.com/AnthropicAI",
    "id": "1353836358901501952",
    "name": "Anthropic",
    "isVerified": false,
    "isBlueVerified": true,
    "verifiedType": "Business",
    "profilePicture": "https://pbs.twimg.com/profile_images/1798110641414443008/XP8gyBaY_normal.jpg",
    "coverPicture": "https://pbs.twimg.com/profile_banners/1353836358901501952/1719228429",
    "description": "",
    "location": "",
    "followers": 621591,
    "following": 37,
    "status": "",
    "canDm": false,
    "canMediaTag": true,
    "createdAt": "Mon Jan 25 22:45:28 +0000 2021",
    "entities": {
      "description": {
        "urls": []
      },
      "url": {}
    },
    "fastFollowersCount": 0,
    "favouritesCount": 1387,
    "hasCustomTimelines": true,
    "isTranslator": false,
    "mediaCount": 463,
    "statusesCount": 1092,
    "withheldInCountries": [],
    "affiliatesHighlightedLabel": {},
    "possiblySensitive": false,
    "pinnedTweetIds": [
      "1952768432027431127"
    ],
    "profile_bio": {
      "description": "We're an AI safety and research company that builds reliable, interpretable, and steerable AI systems. Talk to our AI assistant @claudeai on https://t.co/FhDI3KQh0n.",
      "entities": {
        "description": {
          "urls": [
            {
              "display_url": "claude.ai",
              "expanded_url": "https://claude.ai",
              "indices": [
                141,
                164
              ],
              "url": "https://t.co/FhDI3KQh0n"
            }
          ],
          "user_mentions": [
            {
              "id_str": "0",
              "indices": [
                128,
                137
              ],
              "name": "",
              "screen_name": "claudeai"
            }
          ]
        },
        "url": {
          "urls": [
            {
              "display_url": "anthropic.com",
              "expanded_url": "https://anthropic.com",
              "indices": [
                0,
                23
              ],
              "url": "https://t.co/w94SABjAXZ"
            }
          ]
        }
      }
    },
    "isAutomated": false,
    "automatedBy": null
  },
  "extendedEntities": {
    "media": [
      {
        "allow_download_status": {
          "allow_download": true
        },
        "display_url": "pic.twitter.com/VJfZ3u7Lrb",
        "expanded_url": "https://twitter.com/AnthropicAI/status/1951317917775053031/photo/1",
        "ext_alt_text": "(a) Inference-time steering: After finetuning, steering against persona vectors (subtracting them during generation) reduces trait expression, but can degrade general capabilities (gray line shows MMLU performance). (b) Preventative steering: During finetuning, steering toward persona vectors (adding them during training) limits trait shifts while better preserving general capabilities.",
        "ext_media_availability": {
          "status": "Available"
        },
        "features": {
          "large": {},
          "orig": {}
        },
        "id_str": "1951315549725581312",
        "indices": [
          275,
          298
        ],
        "media_key": "3_1951315549725581312",
        "media_results": {
          "id": "QXBpTWVkaWFSZXN1bHRzOgwAAQoAARsUdydqFuAACgACGxR5TsTWQOcAAA==",
          "result": {
            "__typename": "ApiMedia",
            "id": "QXBpTWVkaWE6DAABCgABGxR3J2oW4AAKAAIbFHlOxNZA5wAA",
            "media_key": "3_1951315549725581312"
          }
        },
        "media_url_https": "https://pbs.twimg.com/media/GxR3J2oW4AAvojn.jpg",
        "original_info": {
          "focus_rects": [
            {
              "h": 2150,
              "w": 3839,
              "x": 81,
              "y": 0
            },
            {
              "h": 2150,
              "w": 2150,
              "x": 925,
              "y": 0
            },
            {
              "h": 2150,
              "w": 1886,
              "x": 1057,
              "y": 0
            },
            {
              "h": 2150,
              "w": 1075,
              "x": 1463,
              "y": 0
            },
            {
              "h": 2150,
              "w": 4000,
              "x": 0,
              "y": 0
            }
          ],
          "height": 2150,
          "width": 4000
        },
        "sizes": {
          "large": {
            "h": 1101,
            "w": 2048
          }
        },
        "type": "photo",
        "url": "https://t.co/VJfZ3u7Lrb"
      }
    ]
  },
  "card": null,
  "place": {},
  "entities": {},
  "quoted_tweet": null,
  "retweeted_tweet": null,
  "article": null
}