{
  "type": "tweet",
  "id": "2067660389278523419",
  "url": "https://x.com/PyTorch/status/2067660389278523419",
  "twitterUrl": "https://twitter.com/PyTorch/status/2067660389278523419",
  "text": "Autotuning is the backbone of Helion, PyTorch's DSL for performance portable ML kernels. Currently Helion searches utilize Likelihood-Free Bayesian Optimization (LFBO) to find the most performant configs. While LFBO works well, it requires grinding through hundreds of compile-and-benchmark cycles per kernel.\n\nWhat if, instead of starting the search blindly, you could ask an LLM to reason about the kernel and propose configurations?\n\nIn this blog, we look at how LLM-guided autotuning is a practical approach to dramatically faster kernel tuning at production quality.\n\nClick the link in the comments section to learn more.  \n\n@JongsokC @oguz_ulgen",
  "source": "Twitter for iPhone",
  "retweetCount": 0,
  "replyCount": 1,
  "likeCount": 1,
  "quoteCount": 0,
  "viewCount": 344,
  "createdAt": "Thu Jun 18 17:27:06 +0000 2026",
  "lang": "en",
  "bookmarkCount": 1,
  "isReply": false,
  "inReplyToId": null,
  "conversationId": "2067660389278523419",
  "displayTextRange": [
    0,
    268
  ],
  "inReplyToUserId": null,
  "inReplyToUsername": null,
  "author": {
    "type": "user",
    "userName": "PyTorch",
    "url": "https://x.com/PyTorch",
    "twitterUrl": "https://twitter.com/PyTorch",
    "id": "776585502606721024",
    "name": "PyTorch",
    "isVerified": false,
    "isBlueVerified": true,
    "verifiedType": null,
    "profilePicture": "https://pbs.twimg.com/profile_images/1813965160702451712/yXV1vRhr_normal.jpg",
    "coverPicture": "https://pbs.twimg.com/profile_banners/776585502606721024/1761575044",
    "description": "",
    "location": "",
    "followers": 497942,
    "following": 87,
    "status": "",
    "canDm": false,
    "canMediaTag": true,
    "createdAt": "Fri Sep 16 00:56:26 +0000 2016",
    "entities": {
      "description": {
        "urls": []
      },
      "url": {}
    },
    "fastFollowersCount": 0,
    "favouritesCount": 950,
    "hasCustomTimelines": true,
    "isTranslator": false,
    "mediaCount": 1512,
    "statusesCount": 3346,
    "withheldInCountries": [],
    "affiliatesHighlightedLabel": {},
    "possiblySensitive": false,
    "pinnedTweetIds": [],
    "profile_bio": {
      "description": "Tensors and neural networks in Python with strong hardware acceleration. PyTorch is an open source project at the Linux Foundation. #PyTorchFoundation",
      "entities": {
        "description": {
          "hashtags": [
            {
              "indices": [
                132,
                150
              ],
              "text": "PyTorchFoundation"
            }
          ]
        },
        "url": {
          "urls": [
            {
              "display_url": "pytorch.org",
              "expanded_url": "http://pytorch.org",
              "indices": [
                0,
                23
              ],
              "url": "https://t.co/6SwTBhUwTJ"
            }
          ]
        }
      }
    },
    "isAutomated": false,
    "automatedBy": null
  },
  "extendedEntities": {
    "media": [
      {
        "display_url": "pic.twitter.com/3hZGXE4lG5",
        "expanded_url": "https://twitter.com/PyTorch/status/2067660389278523419/photo/1",
        "ext_master_playlist_only": [],
        "ext_media_availability": {
          "status": "Available"
        },
        "ext_playlists": [],
        "features": {
          "large": {
            "faces": []
          },
          "orig": {
            "faces": []
          }
        },
        "id_str": "2067660368327880704",
        "indices": [
          269,
          292
        ],
        "media_key": "3_2067660368327880704",
        "media_results": {
          "id": "QXBpTWVkaWFSZXN1bHRzOgwAAQoAARyxziZqVjAACgACHLHOK0sXoBsAAA==",
          "result": {
            "__typename": "ApiMedia",
            "id": "QXBpTWVkaWE6DAABCgABHLHOJmpWMAAKAAIcsc4rSxegGwAA",
            "media_key": "3_2067660368327880704"
          }
        },
        "media_url_https": "https://pbs.twimg.com/media/HLHOJmpWMAAimhL.jpg",
        "original_info": {
          "focus_rects": [
            {
              "h": 1075,
              "w": 1920,
              "x": 0,
              "y": 0
            },
            {
              "h": 1080,
              "w": 1080,
              "x": 276,
              "y": 0
            },
            {
              "h": 1080,
              "w": 947,
              "x": 343,
              "y": 0
            },
            {
              "h": 1080,
              "w": 540,
              "x": 546,
              "y": 0
            },
            {
              "h": 1080,
              "w": 1920,
              "x": 0,
              "y": 0
            }
          ],
          "height": 1080,
          "width": 1920
        },
        "sizes": {
          "large": {
            "h": 1080,
            "w": 1920
          }
        },
        "type": "photo",
        "url": "https://t.co/3hZGXE4lG5"
      }
    ]
  },
  "card": null,
  "place": {},
  "entities": {
    "hashtags": [],
    "symbols": [],
    "urls": [],
    "user_mentions": [
      {
        "id_str": "4510519159",
        "indices": [
          630,
          639
        ],
        "name": "Jongsok Choi",
        "screen_name": "JongsokC"
      },
      {
        "id_str": "209722503",
        "indices": [
          640,
          651
        ],
        "name": "Oguz Ulgen",
        "screen_name": "oguz_ulgen"
      }
    ]
  },
  "quoted_tweet": null,
  "retweeted_tweet": null,
  "isLimitedReply": false,
  "communityInfo": null,
  "article": null
}