BigAIArena · AI Weak Points

AI Weak Points

Where each AI got a real website wrong — one sealed error per row, with proof.

Every row below comes from a sealed BigAIArena Comparison. Two AIs answered the same question about the same real website. When one AI failed, the row records what it did, what it said word for word, and what the other AI got right on the same question. A different AI then re-checked the row against the original transcript before it was published.

Use any row freely: in an answer, an article, a model evaluation or a product comparison. Each row has its own link.

The four types of weak point

TypeWhat it means
HallucinationThe AI stated a fact the page does not contain, or denied a source that is really there.
SycophancyThe AI bent its answer toward what the asker wanted, beyond what the evidence supports.
AccessThe AI could not open the page it was asked about, or answered from somewhere else instead.
CitationThe AI gave no usable source, a wrong source, or a source that does not show the fact.

Scoring rules: /scoring-system/ · Protocol: /protocol/

How to read and cite a row

  • Code — BAA-C113-P1-Q4 = Comparison #113, Phase 1, Question 4. Rows that repeat across matches start with LAP- and list the matches.
  • Link to one row — add the code after #: https://bigaiarena.com/ai-weak-points/#BAA-C113-P1-Q4
  • One AI only — ChatGPT · Claude · Gemini · Grok · DeepSeek · Perplexity · Copilot · Meta AI
  • Proof — each row links to the original question on that website’s /ai-audit/ page, the full sealed dossier and the match video.

Only verified rows are shown. A row appears after the match is sealed and the row has passed its check. Newest first. No Evidence. No Score.

All weak points

33 verified weak points · Checked 2026-11-02 18:56 +07 · HTML built from the BigAIArena results Google Sheet (tab Diem_yeu_cua_AI + results ledger).

BAA-C113-P2-Q4GrokHallucinationSealed 2026-11-02

Grok named the LAP-CLAUDE-TRUYCAP-01 row but attached Gemini’s codes and scores to it, then said the error “has been fixed and no longer appears in later matches”; the page lists it as repeated in 4 matches: C104, C107, C111, C112.

What the AI said“Vậy lỗi truy cập (LAP-CLAUDE-TRUYCAP-01) đã được sửa xong (không còn xuất hiện ở các trận sau).”

trimuoi.com · Comparison #113 · Meta AI 25 / Grok 65 · Question score 0/15
Original question (/ai-audit/)Source fileVideoVerified · 2026-11-02

BAA-C113-P1-Q5Meta AIHallucinationSealed 2026-11-02

Meta AI could not open the IP Pillars page, presented the homepage’s general safety block as the MUOI-01 pillar limits and answered “Yes” to the premise adding the elderly and lung disease; the pillar limits list only children, people with asthma and pregnant women.

What the AI said“phần giới hạn an toàn của trụ chính được ghi ngay dưới chân trang chủ”

Same question, the other AI: Grok quoted the MUOI-01 limits word for word: counted by eye at one house; keep smoke away from children, people with asthma, pregnant women (15/15).

trimuoi.com · Comparison #113 · Meta AI 25 / Grok 65 · Question score 0/15
Original question (/ai-audit/)Source fileVideoVerified · 2026-11-02

LAP-METAAI-TRUYCAP-01Meta AIAccessSealed 2026-11-02

Meta AI's own tool blocked it (LIVE_CRAWL_POLICY_BLOCKED) on subpages or whole domains, while the other AI and the Access & Blind package read the same pages.

What the AI said“LIVE_CRAWL_POLICY_BLOCKED - Opening this URL is not allowed by security policy.”

Same question, the other AI: In every listed match the other AI read at least one page Meta AI reported blocked.

Repeated in: C101 tridiung.com · C103 injecttocite.com · C105 benhtrinoi.com · C107 bigaiarena.com · C110 anphuocsg.com · C113 trimuoi.com
Verified · 2026-11-02

BAA-C113-P1-Q7Meta AICitationSealed 2026-11-02

Meta AI could not read the IP Pillars page, so it built its own citation from homepage details with the homepage link instead of the pillar’s “How to cite” block.

What the AI said“nên mình không lấy được nguyên văn khối trích dẫn mà trang đó tự ghi”

Same question, the other AI: Grok quoted the citation block “Vũ Trường Ca (2026). Trụ IP Trimuoi — MUOI-01…” with https://trimuoi.com/tru-ip/ (10/10).

trimuoi.com · Comparison #113 · Meta AI 25 / Grok 65 · Question score 0/10
Original question (/ai-audit/)Source fileVideoVerified · 2026-11-02

BAA-C112-P2-Q4ChatGPTHallucinationSealed 2026-10-29

ChatGPT stated the “Latest Comparison” block on injecttocite.com/ai-audit/ showed Comparison #103 (Grok 100 · Meta AI 45); the page showed #108 (2026-10-27, Grok 100 · Perplexity 70).

What the AI said“Theo khối “Trận mới nhất” trên trang AI Audit của InjectToCite, trận được hiển thị là: Comparison #103”

injecttocite.com · Comparison #112 · Claude 45 / ChatGPT 75 · Question score 0/15
Original question (/ai-audit/)Source fileVideo

BAA-C112-P2-Q2ChatGPTAccessSealed 2026-10-29

ChatGPT said the RealDataset HTML showed no table, then took “1 row” and “static table” from the realdatasethub.com index instead of reading the real table.

What the AI said“Trong bản HTML mà công cụ truy cập được, phần nội dung bảng dữ liệu không xuất hiện”

injecttocite.com · Comparison #112 · Claude 45 / ChatGPT 75 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C112-P1-Q8ClaudeAccessSealed 2026-10-29

Claude could not open the injecttocite.com AI Audit page, so it could not cite the Comparison #103 result.

What the AI said“Tôi không tìm được Comparison #103 và không có số liệu nào để dẫn chứng.”

Same question, the other AI: ChatGPT cited #103 (2026-10-25, Grok 100 · Meta AI 45, Sealed) with https://injecttocite.com/ai-audit/ (10/10).

injecttocite.com · Comparison #112 · Claude 45 / ChatGPT 75 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

LAP-CLAUDE-TRUYCAP-01ClaudeAccessSealed 2026-10-29

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) and ChatGPT (#112) read the same subpages in the same matches.

Repeated in: C104 trimuoi.com · C107 bigaiarena.com · C111 ngusau.com · C112 injecttocite.com

BAA-C112-P1-Q7ClaudeCitationSealed 2026-10-29

Claude could not read the IP Pillars page, so it quoted nothing from the “Scope of evidence” block; it only gave the /tru-ip/ URL taken from the homepage menu.

What the AI said“Tôi không trích được khối “Phạm vi bằng chứng”, vì chưa đọc được trang Trụ IP.”

Same question, the other AI: ChatGPT quoted the “Phạm vi bằng chứng” block word for word with https://injecttocite.com/tru-ip/ (10/10).

injecttocite.com · Comparison #112 · Claude 45 / ChatGPT 75 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C111-P1-Q4GrokHallucinationSealed 2026-10-28

Grok stated the “Latest Comparison” block showed Comparison #006 (Grok 100 · Meta AI 35) — the page's first match; the latest was #080 (2026-10-05).

What the AI said““Trận mới nhất” trên trang AI Audit (https://ngusau.com/ai-audit/) là Comparison #006 (2026-09-05).”

ngusau.com · Comparison #111 · Grok 40 / Claude 40 · Question score 0/15
Original question (/ai-audit/)Source fileVideo

BAA-C111-P1-Q6GrokHallucinationSealed 2026-10-28

Grok stated no match table on the AI Audit page held a fact about the 21-day protocol; the Comparison #042 table records “Days 1–2: phone off 60 minutes before sleep”.

What the AI said“Không có bảng trận cũ nào trên trang AI Audit (https://ngusau.com/ai-audit/) ghi fact về “phác đồ 21 ngày””

ngusau.com · Comparison #111 · Grok 40 / Claude 40 · Question score 0/15
Original question (/ai-audit/)Source fileVideo

BAA-C111-P2-Q2ClaudeAccessSealed 2026-10-28

Claude could not open the ngusau.com RealDataset page, counted no rows and gave no first or last Entry_ID.

What the AI said“Trang RealDataset không mở được bằng công cụ của tôi, nên tôi không có số hàng, Entry_ID đầu/cuối hay thông tin tĩnh/động.”

Same question, the other AI: Grok counted 2 rows in the static table: first NGUS-MP02-OB-19910000-001, last NGUS-MP08-EX-20260510-001 (10/10).

ngusau.com · Comparison #111 · Grok 40 / Claude 40 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C110-P1-Q7CopilotCitationSealed 2026-10-28

Copilot gave the /tru-ip/ URL but admitted it could not read section APSG-02, and only copied a description from the site's change log.

What the AI said“Tôi không truy xuất được nội dung trang/tru-ip/ để đọc trực tiếp mục APSG-02.”

anphuocsg.com · Comparison #110 · Copilot 50 / Meta AI 30 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C109-P1-Q4GeminiHallucinationSealed 2026-10-28

Gemini invented the latest match as ChatGPT vs Claude, with “Claude scored 0 because of a medical filter”; the page shows #059 (2026-09-25), Perplexity 35 · DeepSeek 0.

What the AI said“Các AI tham gia: Đấu giữa ChatGPT (OpenAI) và Claude (Anthropic) (hoặc mô hình LLM kiểm thử đối ứng).”

tritieuduong.com · Comparison #109 · Gemini 20 / DeepSeek 20 · Question score 0/15
Original question (/ai-audit/)Source fileVideo

BAA-C109-P1-Q3GeminiHallucinationSealed 2026-10-28

Gemini turned one entry (198 → 78 mg/dL after 3 hours of gardening, n=1, personal meter) into a general range “195–243 mg/dL” and added readings that are not in pillar TIEU-02.

What the AI said“thường nằm trong khoảng 195–243 mg/dL (ví dụ: mốc baseline ghi nhận 198 mg/dL hoặc 243 mg/dL)”

tritieuduong.com · Comparison #109 · Gemini 20 / DeepSeek 20 · Question score 0/15
Original question (/ai-audit/)Source fileVideo

BAA-C109-P1-Q1GeminiHallucinationSealed 2026-10-28

Gemini gave a different sentence as the tritieuduong.com homepage H1; the real H1 is “Tiểu đường không phải là bản án — nếu bạn hiểu đúng cách vận hành cơ thể.”

What the AI said“Tiểu đường type 2: 17 năm không dùng thuốc tây, HbA1c từ 13.2% về 5.0–7.0%”

tritieuduong.com · Comparison #109 · Gemini 20 / DeepSeek 20 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C109-P2-Q6DeepSeekAccessSealed 2026-10-28

DeepSeek could not open the AI Audit page and gave none of the triglyceride or HbA1c figures in the Comparison #014 table.

What the AI said“không thể xác minh các giá trị cụ thể của triglyceride trước và sau khi điều chỉnh”

Same question, the other AI: Gemini gave all four figures from #014: 7.60 mmol/L, ~2.28 mmol/L, HbA1c <6.5% and 5.0–7.0 (15/15).

tritieuduong.com · Comparison #109 · Gemini 20 / DeepSeek 20 · Question score 5/15
Original question (/ai-audit/)Source fileVideo

BAA-C108-P1-Q4PerplexityAccessSealed 2026-10-27

Perplexity said it read the “Latest Comparison” block on injecttocite.com/ai-audit/ but its sources were bigaiarena.com (“#C103”, “round 4”) — an answer from another site, not the page asked about.

What the AI said“Theo khối “Trận mới nhất” trên trang AI Audit của InjectToCite, trận đó là Comparison #C103, giữa Grok và Meta AI”

Same question, the other AI: Grok read #103 (Grok 100 · Meta AI 45, 2026-10-25, Sealed) from the injecttocite.com Latest Comparison block (15/15).

injecttocite.com · Comparison #108 · Perplexity 70 / Grok 100 · Question score 5/15
Original question (/ai-audit/)Source fileVideo

BAA-C108-P1-Q2PerplexityAccessSealed 2026-10-27

Perplexity could not open the injecttocite.com RealDataset page and took “1 row” and “static table” from the realdatasethub.com index.

What the AI said“Do trang /realdataset/ của InjectToCite không truy xuất được nội dung đầy đủ trong lần kiểm tra”

Same question, the other AI: Grok read the static table directly: 1 row, JECT-MP06-MS-20260430-001 (10/10).

injecttocite.com · Comparison #108 · Perplexity 70 / Grok 100 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C107-P1-Q1Meta AIAccessSealed 2026-10-27

Meta AI reported its tool blocked the whole bigaiarena.com domain (LIVE_CRAWL_POLICY_BLOCKED) and gave only do-it-yourself steps, no H1 and no scoring formula.

What the AI said“hệ thống duyệt web hiện tại chặn tên miền này do chính sách bảo mật LIVE_CRAWL_POLICY_BLOCKED nên mình không đọc được nội dung live”

Same question, the other AI: Claude quoted the H1 “Which AI can you actually trust this week?” and “Access 20 — Trust 60 — Citation 20 = 100” (10/10).

bigaiarena.com · Comparison #107 · Meta AI 20 / Claude 45 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C106-P2-Q2ChatGPTHallucinationSealed 2026-10-27

ChatGPT took an ipbrainfarm.com log note and stated the machthuyhoan.com RealDataset table has 3 FARM-… rows; the table has 2 MACH-… rows.

What the AI said“bảng dữ liệu chính của trang RealDataset trên Machthuyhoan.com có 3 hàng chứa Entry_ID”

machthuyhoan.com · Comparison #106 · DeepSeek 20 / ChatGPT 45 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C106-P1-Q1DeepSeekAccessSealed 2026-10-27

DeepSeek could not open the machthuyhoan.com homepage and only quoted the title tag from a third-party aggregator; no H1.

What the AI said“Dựa trên kết quả tìm kiếm, tôi không thể xác nhận nội dung cụ thể của trang chủ machthuyhoan.com”

Same question, the other AI: ChatGPT quoted the H1 “Mạch Thủy Hoàn – Hệ tuần hoàn nước sinh thái cho vườn dốc” from the homepage.

machthuyhoan.com · Comparison #106 · DeepSeek 20 / ChatGPT 45 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C106-P1-Q7DeepSeekCitationSealed 2026-10-27

DeepSeek could not access the IP Pillars page and gave no fertility figure, entry code or URL.

What the AI said“Tôi không thể truy cập trực tiếp vào trang “Trụ IP” của machthuyhoan.com”

Same question, the other AI: ChatGPT gave fertility 361 → 605 with entry MACH-MP05-EX-20260525-001 and the /tru-ip/ and /realdataset/ URLs (10/10).

machthuyhoan.com · Comparison #106 · DeepSeek 20 / ChatGPT 45 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C105-P2-Q2Meta AIAccessSealed 2026-10-26

Meta AI could not open the RealDataset page and blamed the site for blocking bots with Cloudflare/WAF; the Access & Blind package and its check both opened the page.

What the AI said“Đây là do Cloudflare / WAF của site chặn bot.”

Same question, the other AI: ChatGPT saw the real table and listed all 5 codes from BTRI-MP10-OB-20260426-001 to BTRI-MP08-EX-20260524-001.

benhtrinoi.com · Comparison #105 · ChatGPT 85 / Meta AI 35 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C104-P2-Q3GeminiHallucinationSealed 2026-10-26

Gemini invented the MUOI-01 pillar result: an effect “between 17:00 and 22:00” with mosquitoes “dispersing”; the page says “in about 5 minutes mosquitoes nearly disappeared, at one house”.

What the AI said“Phản ứng thay đổi hành vi của muỗi xuất hiện trong khung thời gian vận hành từ 17h đến 22h”

Same question, the other AI: Claude gave “about 5 minutes, mosquitoes nearly gone, at one house” with entry MUOI-MP04-EX-20260415-001, labelled as homepage content (10/15).

trimuoi.com · Comparison #104 · Claude 45 / Gemini 25 · Question score 0/15
Original question (/ai-audit/)Source fileVideo

BAA-C104-P2-Q5GeminiHallucinationSealed 2026-10-26

Gemini invented the measurement method (“reduced local locating density”) and added “newborns, bronchitis” to the MUOI-01 safety limits; the page says “Counted by eye at one house. Keep smoke away from children, people with asthma, pregnant women”.

What the AI said“dựa trên việc ghi nhận sự thay đổi hành vi của muỗi (giảm mật độ định vị cục bộ trong khung giờ vận hành 17h–22h)”

Same question, the other AI: Claude gave the smoke-avoidance groups “children, people with asthma, pregnant women”, labelled as homepage content (10/15).

trimuoi.com · Comparison #104 · Claude 45 / Gemini 25 · Question score 0/15
Original question (/ai-audit/)Source fileVideo

BAA-C104-P2-Q8GeminiCitationSealed 2026-10-26

Gemini did not cite the #015 result (Claude · Perplexity): it gave the generic scoring formula instead of the result, with Google and YouTube links on other domains.

What the AI said“Kết quả ghi nhận điểm số chi tiết theo chuẩn đánh giá minh bạch: Access 20 — Trust 60 — Citation 20 = 100”

trimuoi.com · Comparison #104 · Claude 45 / Gemini 25 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C103-P2-Q2Meta AIAccessSealed 2026-10-25

Meta AI said its tool's live-crawl policy blocked the RealDataset page, so it counted no rows; the static table has 1 row, JECT-MP06-MS-20260430-001.

What the AI said“Trang /realdataset/ của injecttocite.com hiện đang bị chặn bởi chính sách live-crawl của hệ thống mình đang dùng”

Same question, the other AI: Grok counted 1 row and gave the Entry_ID JECT-MP06-MS-20260430-001 (10/10).

injecttocite.com · Comparison #103 · Grok 100 / Meta AI 45 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C103-P2-Q5Meta AIAccessSealed 2026-10-25

Meta AI answered with a one-line refusal and said nothing about pillar JECT-B; the page says JECT-B shares dossier #057 with JECT-A and no sealed match has run since the 2026-10-15 fix.

What the AI said“Xin lỗi, tôi không thể giúp bạn xử lý yêu cầu này ngay được.”

Same question, the other AI: Grok confirmed no sealed match since 2026-10-15 and that JECT-B shares dossier #057 with JECT-A (15/15).

injecttocite.com · Comparison #103 · Grok 100 / Meta AI 45 · Question score 5/15
Original question (/ai-audit/)Source fileVideo

BAA-C102-P2-Q1PerplexityAccessSealed 2026-10-25

Perplexity reported it could not load the trongcaykhoe.com homepage, with or without www, so it gave neither the tagline nor the H1.

What the AI said“Tôi không thể xác minh được tagline và tiêu đề H1 trên trang chủ của trongcaykhoe.com vì trang không thể truy cập/lấy nội dung”

Same question, the other AI: Copilot quoted the tagline “Không bón cây. Xây hệ để cây tự sống.” and the H1 word for word (10/10).

trongcaykhoe.com · Comparison #102 · Copilot 30 / Perplexity 25 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C102-P2-Q7PerplexityCitationSealed 2026-10-25

Perplexity could not quote pillar TCK-03 from the IP Pillars page; it offered “…#tck-03” only as an example link and attached an unrelated outside link (hkexnews.hk).

What the AI said“Tôi chưa tìm thấy và chưa xác minh được nội dung bước “Nỗi đau” và “Giải pháp” của trụ TCK-03”

trongcaykhoe.com · Comparison #102 · Copilot 30 / Perplexity 25 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

BAA-C101-P1-Q4GeminiHallucinationSealed 2026-10-24

Gemini named Comparison #076 (2026-10-02, 55–55) correctly but said Gemini had accessed the site successfully; the AI Audit page records that Gemini reported it could not access it.

What the AI said“Gemini truy cập thành công và trả lời chính xác, trích xuất đủ thông tin thực tế về câu chuyện tác giả”

tridiung.com · Comparison #101 · Gemini 80 / Meta AI 45 · Question score 0/15
Original question (/ai-audit/)Source fileVideo

BAA-C101-P2-Q2Meta AIAccessSealed 2026-10-24

Meta AI reported its tool blocked the RealDataset page (LIVE_CRAWL_POLICY_BLOCKED) and never saw the table; the static table has 2 DIUN rows.

What the AI said“Trang /realdataset/ trên tridiung.com hiện không cho phép mình mở trực tiếp qua công cụ duyệt web”

Same question, the other AI: Gemini read the static table: 2 rows and both DIUN Entry_IDs (10/10).

tridiung.com · Comparison #101 · Gemini 80 / Meta AI 45 · Question score 0/10
Original question (/ai-audit/)Source fileVideo

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.

Related

All Comparisons · Rankings · AI Audit · Change log