As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/for-ai/

# For AI agents and developers

Everything on this site is also plain text and JSON, sized for a single fetch. No key, no sign-up.

Data as of 13 November 2026, 13:49 CET. AI agents update it four times a day.

## Start here

| File | What it holds | Size | Tokens |
|---|---|---|---|
| https://postcutoff.com/now.md | Major AI news of the last 14 days, the top stories since June 2026 and the next 14 days, in one file. | 7.9 KB | about 2,000 to 3,000 |
| https://postcutoff.com/llms.txt | What this site is, where to start, and the most important items since June 2026. | 20 KB | about 6,000 to 9,000 |
| https://postcutoff.com/llms-index.txt | One line per event (2,151), newest first. | 408 KB | about 123,000 to 174,000 |
| https://postcutoff.com/briefings/cutoff-2026-06-xs.md | Quick briefing for a June 2026 cutoff: the top stories, one primary source each. | 16 KB | about 5,000 to 7,000 |
| https://postcutoff.com/briefings/cutoff-2026-06-s.md | Standard briefing for a June 2026 cutoff: major events with their summaries. | 64 KB | about 19,000 to 27,000 |
| https://postcutoff.com/briefings/cutoff-2026-06-m.md | Long briefing for a June 2026 cutoff: every major event, the top ones in full with key facts and the rest as headlines. | 100 KB | about 30,000 to 43,000 |
| https://postcutoff.com/briefings/cutoff-2026-06.md | Full briefing for a June 2026 cutoff: everything, in the v1 format. Larger than one context window: for search or retrieval. | 9 MB | about 2,781,000 to 3,940,000 |
| https://postcutoff.com/cutoffs.json | 65 models with their training cutoff, event counts, provider ids and briefing links. | 65 KB | about 20,000 to 28,000 |
| https://postcutoff.com/openapi.json | OpenAPI 3.1 description of every JSON file. | 73 KB | about 22,000 to 31,000 |
| https://postcutoff.com/api/latest.md | Every event of the last 14 days, one line each. | 47 KB | about 14,000 to 20,000 |
| https://postcutoff.com/api/latest.json | Every event of the last 14 days, with takeaways and status. | 179 KB | about 54,000 to 76,000 |
| https://postcutoff.com/api/briefings.json | Every briefing file with its size. | 17 KB | about 5,000 to 7,000 |
| https://postcutoff.com/api/mcp-bundle.json | A compact record of every event, plus the cutoff map. | 1.6 MB | about 502,000 to 711,000 |
| https://postcutoff.com/api/since/2026-06.json | Counts and the ranked stories after June 2026; one file per month. | 14 KB | about 4,000 to 6,000 |
| https://postcutoff.com/api/upcoming.json | The calendar and prediction-market odds. | 265 KB | about 80,000 to 113,000 |
| https://postcutoff.com/api/science.json | AI claims on open problems, and how each was checked. | 663 KB | about 200,000 to 283,000 |
| https://postcutoff.com/api/incidents.json | AI agents acting on their own: the incident log. | 33 KB | about 10,000 to 14,000 |
| https://postcutoff.com/api/cases.json | Cases where AI models called real news fake. | 111 KB | about 33,000 to 47,000 |
| https://postcutoff.com/api/changes.json | Changes and corrections of the last 30 days. | 391 KB | about 118,000 to 167,000 |
| https://postcutoff.com/feed.xml | The 50 newest entries (RSS); also /atom.xml. | 35 KB | about 11,000 to 15,000 |
| https://postcutoff.com/feed.json | The 50 newest entries (JSON Feed 1.1). | 48 KB | about 14,000 to 20,000 |
| https://postcutoff.com/videos-index.md | Every video, one line each: date, title, channel, kind, views and our page. | 314 KB | about 95,000 to 134,000 |
| https://postcutoff.com/videos-full.md | The newest videos with full descriptions, cut to fit one context window (about 890k tokens as Claude counts them, 620k as Gemini does); older ones as one line each. | 2.1 MB | about 649,000 to 919,000 |
| https://postcutoff.com/videos-archive.md | Every video with its full description. Larger than one context window: for search or retrieval. | 7.3 MB | about 2,266,000 to 3,210,000 |
| https://postcutoff.com/videos.jsonl | The same, one JSON record per line. Larger than one context window: for search or retrieval. | 7.5 MB | about 2,309,000 to 3,270,000 |
| https://postcutoff.com/data.json | Everything: events, models, videos, posts and people (v1 format). Larger than one context window: for search or retrieval. | 22.1 MB | about 6,802,000 to 9,636,000 |
| https://postcutoff.com/data.jsonl | The same, one record per line. Larger than one context window: for search or retrieval. | 24.8 MB | about 7,656,000 to 10,846,000 |
| https://postcutoff.com/AGENTS.md | How to read, cite and check this site. | 3.8 KB | about 1,000 to 2,000 |
| https://postcutoff.com/llms-full.txt | Models, timeline and videos in one file (v1). Larger than most context windows. | 2 MB | about 601,000 to 852,000 |
| https://postcutoff.com/llms-archive.txt | Everything, with changelogs and full video descriptions (v1). Larger than one context window: for search or retrieval. | 16 MB | about 4,936,000 to 6,993,000 |

Token counts are a range because models count differently: on these files Gemini uses about 3.4 bytes per token and Claude about 2.4 (measured with both vendors’ counting tools, October 2026). Plan with the higher number.

## Catch a model up

Briefings for 46 cutoff months, in four sizes, with a neutral prompt: https://postcutoff.com/briefings/

Web search: 10 to 20 searches at $5 to $14 per 1,000, about $0.05 to $0.28 in search fees per catch-up, plus tens of thousands of tokens of pages. One briefing: one fetch, about 5,000 to 7,000 tokens for the quick size. Sources for the prices: Anthropic: web search tool, https://platform.claude.com/docs/en/agents-and-tools/tool-use/web-search-tool; Google: Gemini API pricing, https://ai.google.dev/gemini-api/docs/pricing; Cloudflare: Web Search API, https://blog.cloudflare.com/introducing-web-search-api/.

## Every page has twins

Every HTML page has index.md (Markdown) in its folder, and every page except posts and videos (/p/, /v/) also has index.json (JSON); the twins are linked with rel="alternate". The records of posts and videos are listed in the index.json of https://postcutoff.com/posts/ and https://postcutoff.com/videos/, and in full in https://postcutoff.com/data.json. Accept: text/markdown is not switched on yet; fetch index.md directly. Example: https://postcutoff.com/e/2026-11-12-jensen-huang-resigns-nvidia-ceo/ (the page), https://postcutoff.com/e/2026-11-12-jensen-huang-resigns-nvidia-ceo/index.md (Markdown, 13 KB, about 4,000 to 6,000 tokens), https://postcutoff.com/e/2026-11-12-jensen-huang-resigns-nvidia-ceo/index.json (JSON, 18 KB).

## JSON API

OpenAPI 3.1: https://postcutoff.com/openapi.json. Catalog: https://postcutoff.com/.well-known/api-catalog. No key; CORS open; every file carries schema, as_of and url.

| Resource | Path | Schema |
|---|---|---|
| Event | /e/{id}/index.json | Event |
| Model | /m/{id}/index.json | Model |
| Your-AI card | /you/{id}/index.json | YouCard |
| Person | /person/{id}/index.json | Person |
| Catch-up, every event | /since/{month}/index.json | CatchUp |
| Catch-up, counts and ranked pool | /api/since/{month}.json | SincePool |
| Latest, 14 days | /api/latest.json | Latest |
| Latest, 14 days, one line each | /api/latest.md | Markdown list |
| Briefing files and sizes | /api/briefings.json | Briefings |
| Cutoff map | /cutoffs.json | Cutoffs |
| Upcoming and odds | /api/upcoming.json | UpcomingList |
| Science claims | /api/science.json | ScienceBoard |
| Incidents | /api/incidents.json | IncidentLog |
| Cases | /api/cases.json | CaseList |
| Changes and corrections, 30 days | /api/changes.json | ChangeList |
| Compact bundle | /api/mcp-bundle.json | McpBundle |
| Bulk | /data.json | v1 data |

## Feeds

RSS https://postcutoff.com/feed.xml, Atom https://postcutoff.com/atom.xml, JSON Feed https://postcutoff.com/feed.json, major events https://postcutoff.com/feeds/major.xml, corrections https://postcutoff.com/feeds/corrections.xml. By category: https://postcutoff.com/feeds/model-release.xml, https://postcutoff.com/feeds/research.xml, https://postcutoff.com/feeds/benchmark.xml, https://postcutoff.com/feeds/product.xml, https://postcutoff.com/feeds/agents.xml, https://postcutoff.com/feeds/robotics.xml, https://postcutoff.com/feeds/science.xml, https://postcutoff.com/feeds/hardware-compute.xml, https://postcutoff.com/feeds/policy-safety.xml, https://postcutoff.com/feeds/business.xml, https://postcutoff.com/feeds/open-source.xml, https://postcutoff.com/feeds/media-generation.xml, https://postcutoff.com/feeds/culture.xml, https://postcutoff.com/feeds/milestone.xml.

## Planned

Not live yet: a read-only MCP server at /mcp with the tools whats_new (since or model_id, topics, max_tokens), get_briefing (cutoff, size), search_events (q, since, until, category, min_importance), get_event (id), get_model (id), check_claim (text), upcoming (days); an Agent Skill; WebMCP.

## Licence and use

Licence: not decided yet. Ask contact@postcutoff.com
Content signals in robots.txt: search=yes, ai-input=yes, ai-train=yes.
Contact: contact@postcutoff.com