Viewing enriched Twitter post
We’re donating Petri, our open-source alignment tool, to @meridianlabs_ai, so its development can continue independently. Working with Meridian Labs, we’ve also released a major update that improves the adaptability, realism, and depth of Petri’s tests. https://t.co/CyicsIScJi
{
"media": [
{
"url": "https://crmoxkoizveukayfjuyo.supabase.co/storage/v1/object/public/media/posts/2052494460966019137/media_0.jpg",
"media_url": "https://crmoxkoizveukayfjuyo.supabase.co/storage/v1/object/public/media/posts/2052494460966019137/media_0.jpg",
"type": "photo",
"filename": "media_0.jpg"
}
],
"processed_at": "2026-05-11T22:20:09.751990",
"pipeline_version": "2.0"
}{
"type": "tweet",
"id": "2052494460966019137",
"url": "https://x.com/AnthropicAI/status/2052494460966019137",
"twitterUrl": "https://twitter.com/AnthropicAI/status/2052494460966019137",
"text": "We’re donating Petri, our open-source alignment tool, to @meridianlabs_ai, so its development can continue independently.\n\nWorking with Meridian Labs, we’ve also released a major update that improves the adaptability, realism, and depth of Petri’s tests.\n\nhttps://t.co/CyicsIScJi",
"source": "Twitter for iPhone",
"retweetCount": 114,
"replyCount": 100,
"likeCount": 1508,
"quoteCount": 20,
"viewCount": 144293,
"createdAt": "Thu May 07 21:03:07 +0000 2026",
"lang": "en",
"bookmarkCount": 449,
"isReply": false,
"inReplyToId": null,
"conversationId": "2052494460966019137",
"displayTextRange": [
0,
279
],
"inReplyToUserId": null,
"inReplyToUsername": null,
"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": 1251930,
"following": 36,
"status": "",
"canDm": false,
"canMediaTag": true,
"createdAt": "Mon Jan 25 22:45:28 +0000 2021",
"entities": {
"description": {
"urls": []
},
"url": {}
},
"fastFollowersCount": 0,
"favouritesCount": 1573,
"hasCustomTimelines": true,
"isTranslator": false,
"mediaCount": 621,
"statusesCount": 1556,
"withheldInCountries": [],
"affiliatesHighlightedLabel": {},
"possiblySensitive": false,
"pinnedTweetIds": [],
"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": "",
"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": {},
"card": {
"binding_values": [
{
"key": "photo_image_full_size_large",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 419,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=800x419",
"width": 800
}
}
},
{
"key": "thumbnail_image",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 147,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=280x150",
"width": 280
}
}
},
{
"key": "description",
"value": {
"string_value": "Updating Petri to version 3.0 and donating it to Meridian Labs"
}
},
{
"key": "domain",
"value": {
"string_value": "www.anthropic.com"
}
},
{
"key": "thumbnail_image_large",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 316,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=600x600",
"width": 600
}
}
},
{
"key": "summary_photo_image_small",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 202,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=386x202",
"width": 386
}
}
},
{
"key": "thumbnail_image_original",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 1000,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=orig",
"width": 1900
}
}
},
{
"key": "site",
"value": {
"scribe_key": "publisher_id",
"user_value": {
"id_str": "1353836358901501952",
"path": []
}
}
},
{
"key": "photo_image_full_size_small",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 202,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=386x202",
"width": 386
}
}
},
{
"key": "summary_photo_image_large",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 419,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=800x419",
"width": 800
}
}
},
{
"key": "thumbnail_image_small",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 76,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=144x144",
"width": 144
}
}
},
{
"key": "creator",
"value": {
"user_value": {
"id_str": "1353836358901501952",
"path": []
}
}
},
{
"key": "thumbnail_image_x_large",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 1000,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=png&name=2048x2048_2_exp",
"width": 1900
}
}
},
{
"key": "photo_image_full_size_original",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 1000,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=orig",
"width": 1900
}
}
},
{
"key": "photo_image_full_size_alt_text",
"value": {
"string_value": "Hand with geometric shapes constructing a complex abstract form on white background"
}
},
{
"key": "vanity_url",
"value": {
"scribe_key": "vanity_url",
"string_value": "anthropic.com"
}
},
{
"key": "photo_image_full_size",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 314,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=600x314",
"width": 600
}
}
},
{
"key": "summary_photo_image_alt_text",
"value": {
"string_value": "Hand with geometric shapes constructing a complex abstract form on white background"
}
},
{
"key": "thumbnail_image_color",
"value": {
"image_color_value": {
"palette": [
{
"percentage": 91.35,
"rgb": {
"blue": 188,
"green": 152,
"red": 106
}
},
{
"percentage": 5.76,
"rgb": {
"blue": 245,
"green": 249,
"red": 250
}
},
{
"percentage": 2.19,
"rgb": {
"blue": 74,
"green": 63,
"red": 48
}
},
{
"percentage": 0.75,
"rgb": {
"blue": 135,
"green": 111,
"red": 79
}
}
]
}
}
},
{
"key": "title",
"value": {
"string_value": "Donating our open-source alignment tool"
}
},
{
"key": "summary_photo_image_color",
"value": {
"image_color_value": {
"palette": [
{
"percentage": 91.35,
"rgb": {
"blue": 188,
"green": 152,
"red": 106
}
},
{
"percentage": 5.76,
"rgb": {
"blue": 245,
"green": 249,
"red": 250
}
},
{
"percentage": 2.19,
"rgb": {
"blue": 74,
"green": 63,
"red": 48
}
},
{
"percentage": 0.75,
"rgb": {
"blue": 135,
"green": 111,
"red": 79
}
}
]
}
}
},
{
"key": "summary_photo_image_x_large",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 1000,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=png&name=2048x2048_2_exp",
"width": 1900
}
}
},
{
"key": "summary_photo_image",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 314,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=600x314",
"width": 600
}
}
},
{
"key": "photo_image_full_size_color",
"value": {
"image_color_value": {
"palette": [
{
"percentage": 91.35,
"rgb": {
"blue": 188,
"green": 152,
"red": 106
}
},
{
"percentage": 5.76,
"rgb": {
"blue": 245,
"green": 249,
"red": 250
}
},
{
"percentage": 2.19,
"rgb": {
"blue": 74,
"green": 63,
"red": 48
}
},
{
"percentage": 0.75,
"rgb": {
"blue": 135,
"green": 111,
"red": 79
}
}
]
}
}
},
{
"key": "photo_image_full_size_x_large",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 1000,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=png&name=2048x2048_2_exp",
"width": 1900
}
}
},
{
"key": "card_url",
"value": {
"scribe_key": "card_url",
"string_value": "https://t.co/CyicsIScJi"
}
},
{
"key": "summary_photo_image_original",
"value": {
"image_value": {
"alt": "Hand with geometric shapes constructing a complex abstract form on white background",
"height": 1000,
"url": "https://pbs.twimg.com/card_img/2052037999873908740/2GP0QUap?format=jpg&name=orig",
"width": 1900
}
}
}
],
"card_platform": {
"platform": {
"audience": {
"name": "production"
},
"device": {
"name": "iPhone",
"version": "13"
}
}
},
"name": "summary_large_image",
"url": "https://t.co/CyicsIScJi",
"user_refs_results": [
{
"rest_id": "1353836358901501952",
"result": {
"__typename": "User",
"action_counts": {
"favorites_count": 1573
},
"avatar": {
"image_url": "https://pbs.twimg.com/profile_images/1798110641414443008/XP8gyBaY_normal.jpg"
},
"banner": {
"image_url": "https://pbs.twimg.com/profile_banners/1353836358901501952/1719228429"
},
"core": {
"created_at": "Mon Jan 25 22:45:28 +0000 2021",
"name": "Anthropic",
"screen_name": "AnthropicAI"
},
"dm_permissions": {
"can_dm": false
},
"exclusive_tweet_following": false,
"follow_request_sent": false,
"identity_profile_labels_highlighted_label": {},
"location": {
"location": ""
},
"media_permissions": {
"can_media_tag": true
},
"notifications_settings": {
"notifications_enabled": false
},
"pinned_items": {},
"privacy": {
"protected": false,
"suspended": false
},
"private_super_following": false,
"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": "",
"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"
}
]
}
}
},
"profile_image_shape": "Square",
"profile_metadata": {
"profile_interstitial_type": "",
"profile_link_color": "1DA1F2"
},
"profile_translation": {
"translator_type_enum": "None"
},
"properties": {
"has_extended_profile": true,
"has_no_screen_name": false
},
"relationship_counts": {
"followers": 1251930,
"following": 36
},
"relationship_perspectives": {
"blocked_by": false,
"blocking": false,
"followed_by": false,
"following": false,
"live_following": false,
"muting": false
},
"rest_id": "1353836358901501952",
"smart_blocked_by": false,
"smart_blocking": false,
"super_follow_eligible": false,
"super_followed_by": false,
"super_following": false,
"tweet_counts": {
"media_tweets": 621,
"tweets": 1556
},
"verification": {
"is_blue_verified": true,
"verified": false,
"verified_type": "Business"
},
"website": {
"url": "https://t.co/w94SABjAXZ"
}
}
},
{
"rest_id": "1353836358901501952",
"result": {
"__typename": "User",
"action_counts": {
"favorites_count": 1573
},
"avatar": {
"image_url": "https://pbs.twimg.com/profile_images/1798110641414443008/XP8gyBaY_normal.jpg"
},
"banner": {
"image_url": "https://pbs.twimg.com/profile_banners/1353836358901501952/1719228429"
},
"core": {
"created_at": "Mon Jan 25 22:45:28 +0000 2021",
"name": "Anthropic",
"screen_name": "AnthropicAI"
},
"dm_permissions": {
"can_dm": false
},
"exclusive_tweet_following": false,
"follow_request_sent": false,
"identity_profile_labels_highlighted_label": {},
"location": {
"location": ""
},
"media_permissions": {
"can_media_tag": true
},
"notifications_settings": {
"notifications_enabled": false
},
"pinned_items": {},
"privacy": {
"protected": false,
"suspended": false
},
"private_super_following": false,
"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": "",
"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"
}
]
}
}
},
"profile_image_shape": "Square",
"profile_metadata": {
"profile_interstitial_type": "",
"profile_link_color": "1DA1F2"
},
"profile_translation": {
"translator_type_enum": "None"
},
"properties": {
"has_extended_profile": true,
"has_no_screen_name": false
},
"relationship_counts": {
"followers": 1251930,
"following": 36
},
"relationship_perspectives": {
"blocked_by": false,
"blocking": false,
"followed_by": false,
"following": false,
"live_following": false,
"muting": false
},
"rest_id": "1353836358901501952",
"smart_blocked_by": false,
"smart_blocking": false,
"super_follow_eligible": false,
"super_followed_by": false,
"super_following": false,
"tweet_counts": {
"media_tweets": 621,
"tweets": 1556
},
"verification": {
"is_blue_verified": true,
"verified": false,
"verified_type": "Business"
},
"website": {
"url": "https://t.co/w94SABjAXZ"
}
}
}
]
},
"place": {},
"entities": {
"hashtags": [],
"symbols": [],
"timestamps": [],
"urls": [
{
"display_url": "anthropic.com/research/donat…",
"expanded_url": "https://www.anthropic.com/research/donating-open-source-petri",
"indices": [
256,
279
],
"url": "https://t.co/CyicsIScJi"
}
],
"user_mentions": [
{
"id_str": "1915751465081090048",
"indices": [
57,
73
],
"name": "Meridian Labs",
"screen_name": "meridianlabs_ai"
}
]
},
"quoted_tweet": null,
"retweeted_tweet": null,
"isLimitedReply": false,
"communityInfo": null,
"article": null
}