Viewing enriched Twitter post
Excited to release PostTrainBench v1.0! This benchmark evaluates the ability of frontier AI agents to post-train language models in a simplified setting. We believe this is a first step toward tracking progress in recursive self-improvement 🧵: https://t.co/ELymwJqVP1
{
"media": [
{
"url": "https://crmoxkoizveukayfjuyo.supabase.co/storage/v1/object/public/media/posts/2031789998811595154/media_0.mp4",
"media_url": "https://crmoxkoizveukayfjuyo.supabase.co/storage/v1/object/public/media/posts/2031789998811595154/media_0.mp4",
"type": "video",
"filename": "media_0.mp4"
}
],
"processed_at": "2026-03-13T15:06:41.663076",
"pipeline_version": "2.0"
}{
"type": "tweet",
"id": "2031789998811595154",
"url": "https://x.com/karinanguyen/status/2031789998811595154",
"twitterUrl": "https://twitter.com/karinanguyen/status/2031789998811595154",
"text": "Excited to release PostTrainBench v1.0! \n\nThis benchmark evaluates the ability of frontier AI agents to post-train language models in a simplified setting. \n\nWe believe this is a first step toward tracking progress in recursive self-improvement 🧵: https://t.co/ELymwJqVP1",
"source": "Twitter for iPhone",
"retweetCount": 78,
"replyCount": 41,
"likeCount": 600,
"quoteCount": 25,
"viewCount": 103547,
"createdAt": "Wed Mar 11 17:50:59 +0000 2026",
"lang": "en",
"bookmarkCount": 449,
"isReply": false,
"inReplyToId": null,
"conversationId": "2031789998811595154",
"displayTextRange": [
0,
247
],
"inReplyToUserId": null,
"inReplyToUsername": null,
"author": {
"type": "user",
"userName": "karinanguyen",
"url": "https://x.com/karinanguyen",
"twitterUrl": "https://twitter.com/karinanguyen",
"id": "1094268079540920321",
"name": "Karina Nguyen",
"isVerified": false,
"isBlueVerified": true,
"verifiedType": null,
"profilePicture": "https://pbs.twimg.com/profile_images/2032369773825388544/NsAx3YYq_normal.jpg",
"coverPicture": "https://pbs.twimg.com/profile_banners/1094268079540920321/1646086704",
"description": "",
"location": "sf ",
"followers": 43098,
"following": 994,
"status": "",
"canDm": true,
"canMediaTag": false,
"createdAt": "Sat Feb 09 16:13:35 +0000 2019",
"entities": {
"description": {
"urls": []
},
"url": {}
},
"fastFollowersCount": 0,
"favouritesCount": 5195,
"hasCustomTimelines": true,
"isTranslator": false,
"mediaCount": 336,
"statusesCount": 1389,
"withheldInCountries": [],
"affiliatesHighlightedLabel": {},
"possiblySensitive": false,
"pinnedTweetIds": [
"1981079678493327375"
],
"profile_bio": {
"description": "building a new ai co (hiring!), prev. AI research & product @OpenAI, @AnthropicAI, @maisonagi (side proj)",
"entities": {
"description": {
"hashtags": [],
"symbols": [],
"urls": [],
"user_mentions": [
{
"id_str": "0",
"indices": [
60,
67
],
"name": "",
"screen_name": "OpenAI"
},
{
"id_str": "0",
"indices": [
69,
81
],
"name": "",
"screen_name": "AnthropicAI"
},
{
"id_str": "0",
"indices": [
83,
93
],
"name": "",
"screen_name": "maisonagi"
}
]
},
"url": {
"urls": [
{
"display_url": "posttrainbench.thoughtfullab.com",
"expanded_url": "https://posttrainbench.thoughtfullab.com/",
"indices": [
0,
23
],
"url": "https://t.co/rQ5kKBpDux"
}
]
}
}
},
"isAutomated": false,
"automatedBy": null
},
"extendedEntities": {
"media": [
{
"additional_media_info": {
"monetizable": false
},
"display_url": "pic.twitter.com/ELymwJqVP1",
"expanded_url": "https://twitter.com/karinanguyen_/status/2031789998811595154/video/1",
"ext_media_availability": {
"status": "Available"
},
"id_str": "2031780825394737152",
"indices": [
248,
271
],
"media_key": "13_2031780825394737152",
"media_results": {
"id": "QXBpTWVkaWFSZXN1bHRzOgwABAoAARwyVeVXGnAAAAA=",
"result": {
"__typename": "ApiMedia",
"id": "QXBpTWVkaWE6DAAECgABHDJV5VcacAAAAA==",
"media_key": "13_2031780825394737152"
}
},
"media_url_https": "https://pbs.twimg.com/amplify_video_thumb/2031780825394737152/img/uQXKrU8487Tepo6V.jpg",
"original_info": {
"focus_rects": [],
"height": 1328,
"width": 1932
},
"sizes": {
"large": {
"h": 1328,
"w": 1932
}
},
"type": "video",
"url": "https://t.co/ELymwJqVP1",
"video_info": {
"aspect_ratio": [
483,
332
],
"duration_millis": 44450,
"variants": [
{
"content_type": "application/x-mpegURL",
"url": "https://video.twimg.com/amplify_video/2031780825394737152/pl/JYL1PlUKx80EAVCV.m3u8?tag=21"
},
{
"bitrate": 256000,
"content_type": "video/mp4",
"url": "https://video.twimg.com/amplify_video/2031780825394737152/vid/avc1/392x270/Y8_HpyJIV98c9Ca-.mp4?tag=21"
},
{
"bitrate": 832000,
"content_type": "video/mp4",
"url": "https://video.twimg.com/amplify_video/2031780825394737152/vid/avc1/522x360/SMsXOK33AZIudCnu.mp4?tag=21"
},
{
"bitrate": 2176000,
"content_type": "video/mp4",
"url": "https://video.twimg.com/amplify_video/2031780825394737152/vid/avc1/1046x720/TgeTrGCNkq3AYEVG.mp4?tag=21"
},
{
"bitrate": 10368000,
"content_type": "video/mp4",
"url": "https://video.twimg.com/amplify_video/2031780825394737152/vid/avc1/1932x1328/wSFy1_mHGZnRgdAA.mp4?tag=21"
}
]
}
}
]
},
"card": null,
"place": {},
"entities": {
"hashtags": [],
"symbols": [],
"timestamps": [],
"urls": [],
"user_mentions": []
},
"quoted_tweet": null,
"retweeted_tweet": null,
"isLimitedReply": false,
"article": null
}