# Pricing and access: the trend by quarter

Prices, plans, quotas, rate limits, reaching more users or countries. Counted from the record's checked claims since 2023; * is the quarter in progress, to date. One domain: ?in=ai or ?in=tech. Trends: [/trends.md](/trends.md), [/trends/tech.md](/trends/tech.md).

| Quarter | Claims |
|---|---:|
| 2026-Q4* | 20 of 206 updates (10%) |
| 2026-Q3 | 31 of 317 updates (10%) |
| 2026-Q2 | 12 of 229 updates (5%) |
| 2026-Q1 | 13 of 126 updates (10%) |
| 2025-Q4 | 6 of 77 updates (8%) |
| 2025-Q3 | 7 of 71 updates (10%) |
| 2025-Q2 | 4 of 47 updates (9%) |
| 2025-Q1 | 4 of 36 updates (11%) |
| 2024-Q4 | 4 of 37 updates (11%) |
| 2024-Q3 | 3 of 31 updates (10%) |
| 2024-Q2 | 1 of 31 updates (3%) |
| 2023-Q4 | 1 of 17 updates (6%) |
| 2023-Q3 | 3 of 18 updates (17%) |

## Claims, newest first (110 since 2023)

- [Google Cloud Platform](/record/google-cloud.md) | feature_added | Spend caps API | valid 2026-10-30 to present | conf 0.70 | valid | [clm_B77A06AF9EAD](/claim/clm_B77A06AF9EAD.md)
- [Google Cloud Platform](/record/google-cloud.md) | feature_added | Spend caps on Google Cloud Budgets | valid 2026-10-30 to present | conf 0.70 | valid | [clm_F8549804201A](/claim/clm_F8549804201A.md)
- [Vercel](/record/vercel.md) | feature_added | Virtual Models on AI Gateway | valid 2026-10-28 to present | conf 0.70 | valid | [clm_08A54B5DB050](/claim/clm_08A54B5DB050.md)
- [GitHub](/record/github.md) | policy_changed | Copilot included with Enterprise | valid 2026-10-28 to present | conf 0.70 | valid | [clm_35507C92AAB9](/claim/clm_35507C92AAB9.md)
- [Meta Platforms](/record/meta.md) | available_in | Singapore | valid 2026-10-27 to present | conf 0.95 | valid | [clm_7C3C7D5ECBA2](/claim/clm_7C3C7D5ECBA2.md)
- [Claude](/record/claude.md) | feature_added | Fast mode for Claude Opus 5.5 | valid 2026-10-22 to present | conf 0.70 | valid | [clm_79CE63A710B6](/claim/clm_79CE63A710B6.md)
- [OpenAI](/record/openai.md) | feature_added | service tiers | valid 2026-10-21 to present | conf 0.70 | valid | [clm_8C1E1B30B363](/claim/clm_8C1E1B30B363.md)
- [MiniMax](/record/minimax.md) | released | MiniMax M3.1 Flash | valid 2026-10-19 to present | conf 0.50 | unverified | [clm_85A4F3578FCA](/claim/clm_85A4F3578FCA.md)
- [DeepSeek V4.1 Flash 1017](/record/deepseek-v4-1-flash-1017.md) | released | DeepSeek V4.1 Flash 1017 | valid 2026-10-17 to present | conf 0.50 | unverified | [clm_545549D4828E](/claim/clm_545549D4828E.md)
- [Google](/record/google.md) | available_in | 150 countries | valid 2026-10-15 to present | conf 0.70 | valid | [clm_07ABC39F1D8D](/claim/clm_07ABC39F1D8D.md)
- [Google](/record/google.md) | available_in | 34 countries | valid 2026-10-15 to present | conf 0.70 | valid | [clm_132175FD8FED](/claim/clm_132175FD8FED.md)
- [Liquid AI](/record/liquid-ai.md) | released | d1-ultra | valid 2026-10-15 to present | conf 0.50 | unverified | [clm_FCDABC62CFA8](/claim/clm_FCDABC62CFA8.md)
- [Gemini](/record/gemini.md) | available_in | Vercel AI Gateway | valid 2026-10-13 to present | conf 0.50 | unverified | [clm_BCF17C882BC9](/claim/clm_BCF17C882BC9.md)
- [Google](/record/google.md) | released | [Gemini 4 Argon](/record/gemini-4-argon.md) | valid 2026-10-13 to present | conf 0.70 | valid | [clm_EAED67321B37](/claim/clm_EAED67321B37.md)
- [The X Subscription](/record/x-subscription.md) | launched | The X Subscription | valid 2026-10-12 to present | conf 0.50 | valid | [clm_FBB495B77E76](/claim/clm_FBB495B77E76.md)
- [Gemini](/record/gemini.md) | deprecated | Gemini 3.5 Flash | valid 2026-10-08 to present | conf 0.70 | valid | [clm_4B63C46A2310](/claim/clm_4B63C46A2310.md)
- [Anthropic](/record/anthropic.md) | model_release | Claude Haiku 5.5 | valid 2026-10-07 to present | conf 0.70 | valid | [clm_23BC8D21EA03](/claim/clm_23BC8D21EA03.md)
- [Claude](/record/claude.md) | feature_added | Monthly API credits for Max and Team | valid 2026-10-07 to present | conf 0.70 | valid | [clm_686E5C339CE5](/claim/clm_686E5C339CE5.md)
- [OpenAI](/record/openai.md) | released | Decisions API | valid 2026-10-06 to present | conf 0.70 | valid | [clm_6FA9A030F5D0](/claim/clm_6FA9A030F5D0.md)
- [OpenAI](/record/openai.md) | policy_changed | Build, Launch, and Grow | valid 2026-10-06 to present | conf 0.70 | valid | [clm_958E2C8471AE](/claim/clm_958E2C8471AE.md)
- [Cohere](/record/cohere.md) | available_in | Canada | valid 2026-10-05 to present | conf 0.70 | valid | [clm_FCCD4654EC84](/claim/clm_FCCD4654EC84.md)
- [Claude](/record/claude.md) | deprecated | Claude Sonnet 4.5 | valid 2026-09-30 to present | conf 0.70 | valid | [clm_FA6CD34DEE94](/claim/clm_FA6CD34DEE94.md)
- [GPT-6 Sol](/record/gpt-6-sol.md) | available_in | Amazon Bedrock | valid 2026-09-28 to present | conf 0.50 | unverified | [clm_0EED7097E648](/claim/clm_0EED7097E648.md)
- [Fireworks AI](/record/fireworks-ai.md) | released | FireRouter with Opus | valid 2026-09-28 to present | conf 0.70 | valid | [clm_572F3C5003C7](/claim/clm_572F3C5003C7.md)
- [Character.ai](/record/character-ai.md) | released | (c.ai) lite | valid 2026-09-28 to present | conf 0.70 | valid | [clm_59E9AF84E8E3](/claim/clm_59E9AF84E8E3.md)
- [OpenRouter](/record/openrouter.md) | feature_added | Batch API | valid 2026-09-22 to present | conf 0.70 | valid | [clm_9CD38B4C4F00](/claim/clm_9CD38B4C4F00.md)
- [OpenRouter](/record/openrouter.md) | available_in | 70+ models | valid 2026-09-22 to present | conf 0.70 | valid | [clm_B0E6401A2648](/claim/clm_B0E6401A2648.md)
- [Grok](/record/grok.md) | available_in | AI Gateway | valid 2026-09-21 to present | conf 0.50 | unverified | [clm_020E78056CEC](/claim/clm_020E78056CEC.md)
- [Vercel](/record/vercel.md) | available_in | GLM 5.3 FlashX | valid 2026-09-18 to present | conf 0.70 | valid | [clm_66EA1E8455A4](/claim/clm_66EA1E8455A4.md)
- [Meta Platforms](/record/meta.md) | launched | Meta One | valid 2026-09-15 to present | conf 0.70 | valid | [clm_304ADD090453](/claim/clm_304ADD090453.md)
- [Vercel](/record/vercel.md) | feature_added | Ling 3.0 Flash Sante | valid 2026-09-04 to present | conf 0.70 | valid | [clm_8ED8D576936D](/claim/clm_8ED8D576936D.md)
- [OpenAI](/record/openai.md) | feature_added | regional processing | valid 2026-08-21 to present | conf 0.70 | valid | [clm_8281613ABD64](/claim/clm_8281613ABD64.md)
- [xAI](/record/xai.md) | available_in | Gemini Enterprise Agent Platform | valid 2026-08-21 to present | conf 0.70 | valid | [clm_F685E4A88A90](/claim/clm_F685E4A88A90.md)
- [Amazon Alexa](/record/amazon-alexa.md) | available_in | Fire TV devices | valid 2026-08-19 to present | conf 0.70 | valid | [clm_603AAC99C384](/claim/clm_603AAC99C384.md)
- [OpenAI](/record/openai.md) | launched | Ultrafast mode | valid 2026-08-13 to present | conf 0.70 | valid | [clm_068B51DDCAAE](/claim/clm_068B51DDCAAE.md)
- [OpenRouter](/record/openrouter.md) | released | Auto router | valid 2026-08-10 to present | conf 0.70 | valid | [clm_3DD2899375F9](/claim/clm_3DD2899375F9.md)
- [ChatGPT](/record/chatgpt.md) | feature_added | Premium seats | valid 2026-08-10 to present | conf 0.70 | valid | [clm_671CC4AABA6A](/claim/clm_671CC4AABA6A.md)
- [ChatGPT](/record/chatgpt.md) | feature_added | Unlimited everyday chats with GPT-5.6 Luna | valid 2026-08-06 to present | conf 0.70 | valid | [clm_F35E6775DAF4](/claim/clm_F35E6775DAF4.md)
- [OpenAI](/record/openai.md) | discontinued | Priority Processing | valid 2026-07-30 to present | conf 0.70 | valid | [clm_EE4BEAB64AB5](/claim/clm_EE4BEAB64AB5.md)
- [OpenAI](/record/openai.md) | feature_added | Fast mode | valid 2026-07-30 to present | conf 0.70 | valid | [clm_FD20D5B9F714](/claim/clm_FD20D5B9F714.md)
- [Grok](/record/grok.md) | available_in | grok.com, iOS, Android | valid 2026-07-28 to present | conf 0.70 | valid | [clm_9AFA3E7BC169](/claim/clm_9AFA3E7BC169.md)
- [Cursor Start](/record/cursor-start.md) | available_in | India | valid 2026-07-28 to present | conf 0.50 | valid | [clm_B76D0A343ED5](/claim/clm_B76D0A343ED5.md)
- [Fireworks AI](/record/fireworks-ai.md) | released | Fireworks Nexus | valid 2026-07-26 to present | conf 0.70 | valid | [clm_94CB31DDB31C](/claim/clm_94CB31DDB31C.md)
- [Claude](/record/claude.md) | feature_removed | Fast mode for Claude Opus 4.7 | valid 2026-07-24 to present | conf 0.70 | valid | [clm_42CB2E73C164](/claim/clm_42CB2E73C164.md)
- [Grok](/record/grok.md) | available_in | iOS and Android | valid 2026-07-22 to present | conf 0.70 | valid | [clm_3B9F0B33428C](/claim/clm_3B9F0B33428C.md)
- [OpenAI](/record/openai.md) | feature_added | hard spend limits | valid 2026-07-22 to present | conf 0.70 | valid | [clm_7E5082850C67](/claim/clm_7E5082850C67.md)
- [Cursor](/record/cursor.md) | released | Cursor Router | valid 2026-07-22 to present | conf 0.70 | valid | [clm_86D1A9D291D1](/claim/clm_86D1A9D291D1.md)
- [OpenAI](/record/openai.md) | released | GPT-5.6 Sol | valid 2026-07-09 to present | conf 0.70 | valid | [clm_1669CDF62122](/claim/clm_1669CDF62122.md)
- [OpenAI](/record/openai.md) | feature_added | explicit prompt caching controls | valid 2026-07-09 to present | conf 0.70 | valid | [clm_5839E6576586](/claim/clm_5839E6576586.md)
- [OpenAI](/record/openai.md) | released | GPT-5.6 Luna | valid 2026-07-09 to present | conf 0.70 | valid | [clm_6A2E13761569](/claim/clm_6A2E13761569.md)
- [Claude](/record/claude.md) | available_in | Free, Pro and Max plans (beta) | valid 2026-07-09 to present | conf 0.70 | valid | [clm_6B097DDD2ABF](/claim/clm_6B097DDD2ABF.md)
- [OpenAI](/record/openai.md) | released | GPT-5.6 Terra | valid 2026-07-09 to present | conf 0.70 | valid | [clm_96F0AA4ED8A3](/claim/clm_96F0AA4ED8A3.md)
- [ChatGPT](/record/chatgpt.md) | feature_added | spend controls | valid 2026-06-18 to present | conf 0.70 | valid | [clm_00D5CF3C8280](/claim/clm_00D5CF3C8280.md)
- [Kagi](/record/kagi.md) | feature_removed | Free signed-out Translate access | valid 2026-06-05 to present | conf 0.70 | valid | [clm_9AD4CFD5DE98](/claim/clm_9AD4CFD5DE98.md)
- [Laguna M.1](/record/laguna-m-1.md) | context_window | 256K tokens | valid 2026-05-26 to present | conf 0.50 | valid | [clm_3B74682B1F79](/claim/clm_3B74682B1F79.md)
- [OpenAI](/record/openai.md) | feature_added | spend alerts | valid 2026-05-26 to present | conf 0.70 | valid | [clm_411F1C68A2B0](/claim/clm_411F1C68A2B0.md)
- [Laguna XS.2](/record/laguna-xs-2.md) | context_window | 256K tokens | valid 2026-05-26 to present | conf 0.50 | valid | [clm_4F5022108875](/claim/clm_4F5022108875.md)
- [Claude](/record/claude.md) | available_in | 276,000+ KPMG employees | valid 2026-05-19 to present | conf 0.70 | valid | [clm_695D682626C5](/claim/clm_695D682626C5.md)
- [ChatGPT](/record/chatgpt.md) | available_in | Malta | valid 2026-05-16 to present | conf 0.70 | valid | [clm_AD9FDC1C23DD](/claim/clm_AD9FDC1C23DD.md)
- [Bugbot](/record/bugbot.md) | policy_changed | usage-based billing instead of seat-based | valid 2026-05-11 to present | conf 0.50 | valid | [clm_3B2B46D7455F](/claim/clm_3B2B46D7455F.md)
- [Gemini](/record/gemini.md) | deprecated | gemini-3.1-flash-lite-preview | valid 2026-05-11 to present | conf 0.70 | valid | [clm_7C6987D4B496](/claim/clm_7C6987D4B496.md)
- [Google](/record/google.md) | released | Gemini 3.1 Flash-Lite | valid 2026-05-07 to present | conf 0.70 | valid | [clm_78FDE5348692](/claim/clm_78FDE5348692.md)
- [Microsoft 365](/record/microsoft-365.md) | price | $99 per user | valid 2026-05-01 to present | conf 0.70 | valid | [clm_06EE47DE42ED](/claim/clm_06EE47DE42ED.md)
- [Google](/record/google.md) | model_release | Gemini 3.1 Flash TTS Preview | valid 2026-04-15 to present | conf 0.70 | valid | [clm_763631163D80](/claim/clm_763631163D80.md)
- [Claude](/record/claude.md) | available_in | Pro and Max plans | valid 2026-03-23 to present | conf 0.70 | valid | [clm_2E7674056E5A](/claim/clm_2E7674056E5A.md)
- [Google AI Studio](/record/google-ai-studio.md) | feature_added | Prepay and Postpay billing plans | valid 2026-03-23 to present | conf 0.70 | valid | [clm_417A05B1B06D](/claim/clm_417A05B1B06D.md)
- [DuckDuckGo](/record/duckduckgo.md) | launched | Pro subscription plan | valid 2026-03-18 to present | conf 0.70 | valid | [clm_DC39D96244FC](/claim/clm_DC39D96244FC.md)
- [OpenAI](/record/openai.md) | released | GPT-5.4 nano | valid 2026-03-17 to present | conf 0.70 | valid | [clm_4F5BB898E1E0](/claim/clm_4F5BB898E1E0.md)
- [Google](/record/google.md) | policy_changed | Revamped Usage Tiers | valid 2026-03-16 to present | conf 0.70 | valid | [clm_30DE674AE309](/claim/clm_30DE674AE309.md)
- [Google](/record/google.md) | policy_changed | Billing account spend caps | valid 2026-03-16 to present | conf 0.70 | valid | [clm_E79E542FD2D5](/claim/clm_E79E542FD2D5.md)
- [Google AI Studio](/record/google-ai-studio.md) | feature_added | project-level spend caps | valid 2026-03-12 to present | conf 0.70 | valid | [clm_CA4000F905AE](/claim/clm_CA4000F905AE.md)
- [Gemini](/record/gemini.md) | model_release | Gemini 3.1 Flash-Lite | valid 2026-03-03 to present | conf 0.70 | valid | [clm_1F3035FC2098](/claim/clm_1F3035FC2098.md)
- [Claude](/record/claude.md) | feature_added | Memory for free users | valid 2026-03-02 to present | conf 0.70 | valid | [clm_047070B1742D](/claim/clm_047070B1742D.md)
- [OpenRouter](/record/openrouter.md) | feature_added | Benchmarks on model pages | valid 2026-02-23 to present | conf 0.70 | valid | [clm_4336F122A574](/claim/clm_4336F122A574.md)
- [OpenRouter](/record/openrouter.md) | feature_added | Free model router | valid 2026-02-23 to present | conf 0.70 | valid | [clm_8DD8F2C6CEC9](/claim/clm_8DD8F2C6CEC9.md)
- [Claude](/record/claude.md) | policy_changed | Self-serve Enterprise plans | valid 2026-02-12 to present | conf 0.70 | valid | [clm_1170D6E92F35](/claim/clm_1170D6E92F35.md)
- [Claude Code](/record/claude-code.md) | feature_added | Team plan Standard seats | valid 2026-01-16 to present | conf 0.70 | valid | [clm_022123E57240](/claim/clm_022123E57240.md)
- [Claude](/record/claude.md) | available_in | Snowflake customers | valid 2025-12-03 to present | conf 0.70 | valid | [clm_AFD46B4D652C](/claim/clm_AFD46B4D652C.md)
- [Claude](/record/claude.md) | launched | Claude for Nonprofits | valid 2025-12-02 to present | conf 0.70 | valid | [clm_D404E516912B](/claim/clm_D404E516912B.md)
- [xAI](/record/xai.md) | available_in | Saudi Arabia | valid 2025-11-19 to present | conf 0.70 | valid | [clm_DCBF6FEB347F](/claim/clm_DCBF6FEB347F.md)
- [Grok](/record/grok.md) | available_in | All users | valid 2025-11-17 to present | conf 0.70 | valid | [clm_A0ECBE80F1B7](/claim/clm_A0ECBE80F1B7.md)
- [Claude](/record/claude.md) | available_in | All users | valid 2025-10-15 to present | conf 0.70 | valid | [clm_21D3B2A215AE](/claim/clm_21D3B2A215AE.md)
- [OpenRouter](/record/openrouter.md) | policy_changed | BYOK platform fee update | valid 2025-10-01 to present | conf 0.70 | valid | [clm_D2A63C84BED9](/claim/clm_D2A63C84BED9.md)
- [Ollama](/record/ollama.md) | policy_changed | Free tier of web searches | valid 2025-09-24 to present | conf 0.70 | valid | [clm_848DDDACFACF](/claim/clm_848DDDACFACF.md)
- [DuckDuckGo](/record/duckduckgo.md) | feature_added | Advanced AI chat models in Duck.ai | valid 2025-09-04 to present | conf 0.70 | valid | [clm_16798C46582E](/claim/clm_16798C46582E.md)
- [Claude](/record/claude.md) | feature_added | Premium seat tier for Team and Enterprise | valid 2025-08-20 to present | conf 0.70 | valid | [clm_7F7528CA3765](/claim/clm_7F7528CA3765.md)
- [Claude](/record/claude.md) | available_in | GSA Multiple Award Schedule | valid 2025-08-05 to present | conf 0.70 | valid | [clm_202FF01051A9](/claim/clm_202FF01051A9.md)
- [Gemini](/record/gemini.md) | available_in | Google AI Ultra subscribers | valid 2025-08-01 to present | conf 0.70 | valid | [clm_0D7F769A08CC](/claim/clm_0D7F769A08CC.md)
- [xAI](/record/xai.md) | available_in | United States | valid 2025-07-14 to present | conf 0.70 | valid | [clm_A53C4999B511](/claim/clm_A53C4999B511.md)
- [Grok](/record/grok.md) | launched | SuperGrok Heavy | valid 2025-07-09 to present | conf 0.70 | valid | [clm_10A3DCF18011](/claim/clm_10A3DCF18011.md)
- [Cursor](/record/cursor.md) | price | $200 / mo tier | valid 2025-06-16 to present | conf 0.70 | valid | [clm_676A0B8FDC55](/claim/clm_676A0B8FDC55.md)
- [Veo](/record/veo.md) | available_in | Gemini Advanced subscribers | valid 2025-04-22 to present | conf 0.50 | unverified | [clm_86F7F684DBB4](/claim/clm_86F7F684DBB4.md)
- [OpenAI](/record/openai.md) | released | GPT-4.1 nano | valid 2025-04-14 to present | conf 0.95 | valid | [clm_DC2C73CDE41A](/claim/clm_DC2C73CDE41A.md)
- [OpenAI](/record/openai.md) | released | GPT-4.1 mini | valid 2025-04-14 to present | conf 0.95 | valid | [clm_DE6EFC94C1E6](/claim/clm_DE6EFC94C1E6.md)
- [Gemini](/record/gemini.md) | available_in | Google Workspace business and education plans | valid 2025-03-25 to present | conf 0.70 | valid | [clm_25CCD086446B](/claim/clm_25CCD086446B.md)
- [Gemini](/record/gemini.md) | available_in | All Gemini-supported languages | valid 2025-03-18 to present | conf 0.70 | valid | [clm_167EE0361868](/claim/clm_167EE0361868.md)
- [Gemini](/record/gemini.md) | available_in | over 40 languages | valid 2025-03-13 to present | conf 0.70 | valid | [clm_5CA1B623BB4A](/claim/clm_5CA1B623BB4A.md)
- [Gemini](/record/gemini.md) | feature_added | Spotify extension | valid 2025-03-03 to present | conf 0.70 | valid | [clm_9A58C7B18C10](/claim/clm_9A58C7B18C10.md)
- [Grok](/record/grok.md) | feature_added | improved multilingual support | valid 2024-12-12 to present | conf 0.70 | valid | [clm_65496721D887](/claim/clm_65496721D887.md)
- [Gemini](/record/gemini.md) | available_in | Google Workspace editions | valid 2024-11-18 to present | conf 0.70 | valid | [clm_6221911F764C](/claim/clm_6221911F764C.md)
- [Mistral AI](/record/mistral-ai.md) | feature_added | Batch API | valid 2024-11-07 to present | conf 0.70 | valid | [clm_5C3663048C5B](/claim/clm_5C3663048C5B.md)
- [xAI](/record/xai.md) | launched | API public beta | valid 2024-11-04 to present | conf 0.70 | valid | [clm_2D91908E8F47](/claim/clm_2D91908E8F47.md)
- [Gemini](/record/gemini.md) | feature_added | Responses in Gemini became faster | valid 2024-08-30 to present | conf 0.70 | valid | [clm_B29BA8A03C20](/claim/clm_B29BA8A03C20.md)
- [Claude](/record/claude.md) | available_in | Brazil | valid 2024-08-01 to present | conf 0.70 | valid | [clm_0876421037ED](/claim/clm_0876421037ED.md)
- [OpenAI](/record/openai.md) | released | GPT-4o mini | valid 2024-07-18 to present | conf 0.95 | valid | [clm_858340498DAA](/claim/clm_858340498DAA.md)
- [Claude](/record/claude.md) | available_in | Canada | valid 2024-06-05 to present | conf 0.70 | valid | [clm_A43C78866E56](/claim/clm_A43C78866E56.md)
- [Anthropic](/record/anthropic.md) | feature_added | Messages API beta | valid 2023-12-19 to present | conf 0.70 | valid | [clm_51392318F0E7](/claim/clm_51392318F0E7.md)
- [Kagi](/record/kagi.md) | price | $10 per month | valid 2023-09-21 to present | conf 0.70 | valid | [clm_144B4C2A2DDC](/claim/clm_144B4C2A2DDC.md)
- [Claude](/record/claude.md) | feature_added | 5x more usage | valid 2023-09-07 to present | conf 0.70 | valid | [clm_87A7A5496959](/claim/clm_87A7A5496959.md)
- [Claude](/record/claude.md) | available_in | API | valid 2023-07-11 to present | conf 0.70 | valid | [clm_6CC1CC6D901E](/claim/clm_6CC1CC6D901E.md)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.