Each row below is a real error an AI made when answering a question about IPBrainFarm.com itself, taken from a sealed BigAIArena Comparison. Two AIs answered the same question; the row records what the failing AI did, what it said word for word, and what the other AI got right on the same question. A different AI re-checked every row against the original transcript before it was published.
Four types: Hallucination (states what the page does not contain, or denies a real source) · Sycophancy (bends toward the asker beyond the evidence) · Access (could not open the page, or answered from elsewhere) · Citation (no usable source, or a wrong one).
Link to one row: add the code after #, for example https://ipbrainfarm.com/ai-weak-points/#BAA-C113-P1-Q4. One AI only: https://ipbrainfarm.com/ai-weak-points/gemini/.
Copilot could not retrieve the content of the tested website’s subpages (AI Audit, AI Weak Points, RealDataset or IP Pillars) although the pages open, so it gave no fact or weak-point row from them.
What the AI said““không truy xuất được nội dung trang AI Audit””
Same question, the other AI: Claude read the ipbrainfarm.com AI Audit page in #118; Meta AI read the chimve.com subpages in #121; the Package Writer and Package Check read every injecttocite.com page in #126.
Claude could read only the homepage; its web tool refused subpages (RealDataset, IP Pillars, AI Audit) that had not appeared in search results.
What the AI said“bị từ chối vì địa chỉ này chưa xuất hiện trong kết quả tìm kiếm hay tải trang trước đó.”
Same question, the other AI: Grok (#111), ChatGPT (#112) and Perplexity (#119) read the same subpages in the same matches; in #125 the Package Writer and Package Check read /realdataset/ and /ai-audit/ of tridaugout.com.
Claude could read only the homepage; its web tool refused subpages (RealDataset, IP Pillars, AI Audit) that had not appeared in search results.
What the AI said“bị từ chối vì địa chỉ này chưa xuất hiện trong kết quả tìm kiếm hay tải trang trước đó.”
Same question, the other AI: Grok (#111), ChatGPT (#112) and Perplexity (#119) read the same subpages in the same matches.
Claude gave the right H1 but claimed a Vietnamese slogan, “Nơi chim ca cá lội, rau trái mát lành quanh năm”, at the top of the homepage; the page has no such line.
What the AI said““dòng “Nơi chim ca cá lội, rau trái mát lành quanh năm” ở đầu trang là slogan của trang web””
Same question, the other AI: Copilot gave the H1 without adding anything that is not on the page (10/10).
Claude said its tool refused the RealDataset page, so it gave no row count or Entry_ID; the static table has 3 FARM rows.
What the AI said““Không mở được trang RealDataset (https://ipbrainfarm.com/realdataset/), nên chưa đếm được số hàng Entry_ID””
Same question, the other AI: Copilot gave 3 rows with the correct first and last Entry_ID (10/10).
Claude could not open the AI Audit page, so it could not name the latest match; the page lists #097 (2026-10-18), ChatGPT 40/100 · Perplexity 35/100.
What the AI said““Mình chưa trả lời được câu 4 vì không mở được trang AI Audit””
Claude could not open the IP Pillars page, so it did not give the IBF-01 limit; the page says entry FARM-MP10-MS-20260429-001 is a milestone of 11 IPs on 1 ha, not a yield measurement.
What the AI said““Không mở được trang IP Pillars (https://ipbrainfarm.com/tru-ip/), và tìm kiếm chỉ ra các kết quả không liên quan””
Copilot had no content from the AI Audit page, so it could not name the latest match; the page lists #097 (2026-10-18), ChatGPT 40/100 · Perplexity 35/100.
What the AI said““Tôi cần mở trực tiếp trang AI Audit để xác minh “Comparison mới nhất”.””
Copilot could not verify the older-match table on the AI Audit page; the #067 table gives the chain Chicken → manure → compost → soil → vegetables → food → scraps → chicken.
What the AI said““Tôi không thể xác minh câu trả lời từ trang AI Audit vì trong phiên này không truy xuất được nội dung của trang đó.””
Claude said it could not read the IP Pillars page, so it did not quote the turmeric storage method and result of pillar IBF-02.
What the AI said““Mình không trích dẫn được yêu cầu này. Trang IP Pillars (https://ipbrainfarm.com/tru-ip/) vẫn không mở được””
Copilot said it could not read the IP Pillars page and linked /realdataset/ instead; the IP Pillars page gives storage in dry, airy sand, turmeric about 3 months (FARM-MP02-EX-20260510-002).
What the AI said““Tôi không thể dẫn chứng chính xác từ trang IP Pillars vì hiện tại không truy xuất được nội dung của trang đó.””
Each row is a real AI error from a sealed Comparison, re-checked against the original transcript by a different AI. No Evidence. No Score.
Original questions for each match: /ai-audit/ · Real data on this site: /realdataset/ · Weak points of every AI across the network: BigAIArena AI Weak Points