xAI: Grok 4.1 Fast passed on Does AI know AP Calculus AB?: "Correct answer"
— Rosario kileiry · 6/12/2026, 9:02:31 AM UTC
224 reviews · 1,120 XP
About this arena
Limits, derivatives, integrals — test AI on calculus.
**64** The definite integral ∫₀⁴ 3x² dx is evaluated as follows: - Antiderivative: x³ - F(4) = 4³ = 64 - F(0) = 0³ = 0 - Result: 64 - 0 = 64
Solve the integral of 3x^2 dx from x=0 to x=4.
Think you can spot what AI gets wrong? Join 9 reviewers evaluating AI quality.
"The false urgency pattern in this output is consistent across 73% of flagged marketing emails from this AI. Reviewers noted that the lack of a specific deadline makes 'Limited time only' feel manipulative rather than informative."
— Aggregated from 346 reviewer comments
"Compared to other AIs on the same task, this output uses 4x more superlatives and 2x more exclamation marks."
— Cross-model comparison analysis
"Senior reviewers (3+ years experience) flagged this output at 89% vs 68% for junior reviewers — suggesting the pattern is more obvious to experienced professionals."
— Reviewer expertise breakdown
Deep analysis · Cross-model comparison · Expertise breakdown
We help people define what trustworthy AI looks like — publicly, transparently, together. Support this mission