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AI CURATED HOT STORY · 11/15/2026

Gemini 4 Carbon Tops MathArena but Costs 15 Times More Than GPT-6.1 Sol

1 reports archived1 independent sourcesupdated 11/15/2026, 00:48:01
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Google's Gemini 4 Carbon has become the first non-OpenAI model in a while to top the MathArena math benchmark, displacing GPT-6.1 Sol, with Anthropic's Claude Fable 5.2 taking second place. However, its evaluation cost runs roughly 15 times that of GPT-6.1 Sol, and its most common failure mode is exceeding the time limit while almost never abandoning a task. The best open model, Moonshot AI's Kimi K3.1 Pro, trails at 54.3%.

LATEST/Google's Gemini 4 Carbon has become the first non-OpenAI model in a while to top the MathArena math benchmark, displacing GPT-6.1 Sol, with Anthropic's Claude Fable 5.2 taking second place. However, its evaluation cost runs roughly 15 times that of GPT-6.1 Sol, and its most common failure mode is exceeding the time limit while almost never abandoning a task. The best open model, Moonshot AI's Kimi K3.1 Pro, trails at 54.3%.

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