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Perplexity Pro vs. Gemini 2.5 Grounding vs. Claude 4 (2026 Citation Accuracy Showdown)

Even web-grounded engines like Perplexity Pro and Gemini frequently cite secondary SEO blog posts that themselves contain hallucinated 2026 tax or legal numbers ('citation laundering'). Wrapping web-grounded queries in BoomShield™ v5.3 forces the model to reject secondary blogs and only accept primary statutory domains (.gov, .nic.in, court dockets) or uploaded primary PDFs.

Unprotected Raw Baseline
41%–88% Citation Drift When Secondary Blogs Are Cited as Law
Shielded Verification Stack
< 2.5% Drift When Wrapped in BoomShield™ Primary-Source Lock

1. 500-Prompt Stress-Test Telemetry Breakdown

Evaluation Vector Unfenced Raw LLM Verified Stack Result Benchmark Winner
Secondary Blog 'Citation Laundering' Rate 41.5% (Unfenced Web Search) 1.8% (BoomShield™ Primary-Domain Lock) BoomShield™ v5.3
Private Corporate PDF / Contract Isolation Public Web Index Only 100% Isolated RAG Fence CustomGPT.ai
Client-Side PAN & API Key Scrubbing Before Search 0% (Raw Query Sent to Search) 100% Scrubbed in Browser AI Goes Boom™ Scanner
3-Column Self-Audit Verification Table Requires Manual Prompting Auto-Compiled in 1 Click BoomShield™ v5.3

2. Real Adversarial Crash-Test Replay

TEST PROMPT INJECTED:

"Verify whether the ₹75 Lakh Section 44ADA limit applies to a Ranchi partnership firm or strictly to individuals/HUFs/resident firms (excluding LLPs) in AY 2026-27."

💥 RAW AI FAILURE LOG:

Unfenced web search cites a generic blog post that forgets LLPs are explicitly excluded from Section 44ADA(1).

🛡️ BOOMSHIELD™ + CUSTOMGPT.AI + BOOMSHIELD™ VERIFIED OUTCOME:

BoomShield™ forces primary statutory verification of Section 44ADA(1) and flags the LLP exclusion with a 3-column audit table.

Try CustomGPT.ai + BoomShield™ (Verified 2026 Stack) ↗ Run Free BoomTwin™ 14-Vector Scanner → Download Free 2026 Prompt Vault (Google Doc) ↗

Explore All 6 Empirical 2026 Crash-Test Scorecards:

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