Expired50% confidenceBenchmarkExact time
Pangram claims to have 99.98% accuracy, 17 million users, and a reported false positive rate of approximately one in ten thousand
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/15/2026
First Seen
Valid until: 10/13/2026(expired)
Sources
Related Claims
Unverified即便单字符识别准确率达到99%，对于一个包含10个字符的字段，其整体正确率也仅约90%，这被称为"准确率衰减效应"63% similarUnverifiedThe accuracy data in the test has an error margin of approximately ±8–10 percentage points at n=100 sample size (based on a 95% confidence-level binomial confidence interval).62% similarUnverifiedA 95% confidence level means that if the same methodology were used to conduct 100 surveys, approximately 95 of them would produce results falling within the margin of error.61% similarUnverifiedIn financial statements, character accuracy may be as high as 99%, but semantic accuracy may be less than 50%.60% similarUnverifiedAttempting to register or log in directly on the Codex client will almost certainly result in a verification mismatch error.59% similar
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