# Claude answers are less accurate than ChatGPT's, study finds

Published: 2026-08-19T18:50:08.792Z · Source: Profound research blog (https://www.tryprofound.com/blog/where-do-inaccurate-ai-claims-come-from)
Source date: 2026-08-17
Flags: vendor study — Profound's own product data, not independent research
Entities: chatgpt, anthropic

Profound analyzed more than 158,000 AI-generated brand claims through its FactCheck tool and found inaccuracy rates of 4.3-6.8% across engines, with Claude more than 1.3 times as likely as ChatGPT to produce an inaccurate claim, per an August 17 report based on data through August 14. Pricing and billing was the single largest driver of errors — 12% of evaluated claims but 24% of inaccurate ones, and the top error theme for 66% of brands with at least ten pricing claims checked. Claims citing competitor sites and earned media had the highest inaccuracy rates among source types.

Why it matters: A stated methodology and six-figure sample turn 'AI answers are sometimes wrong' into something brands can act on — which topics and source types to audit first, and which engine to watch more closely.

## What this answers

**Is Claude less accurate than ChatGPT when it cites facts about brands?**

Yes — a Profound FactCheck analysis of over 158,000 AI-generated brand claims found Claude more than 1.3 times as likely to produce an inaccurate claim as ChatGPT, with overall inaccuracy rates ranging 4.3-6.8% across engines.

**What topic has the highest error rate in AI answers about brands?**

Pricing and billing, per Profound: it made up 12% of evaluated claims but 24% of all inaccurate ones, and was the single highest-inaccuracy theme for 66% of brands with at least ten pricing claims evaluated.


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