Elon Musk-owned xAI is testing Grok 4.20, a new model update to Grok 4, which already competes with GPT-5 in some benchmarks, such as ARC-AGI 2. GPT-5 is one of the best models for coding, and it ...

New ORCA results show Gemini leading in practical math, but no AI matches the consistency of a simple calculator.

Artificial Intelligence (AI) is becoming an integral part of daily life, including everyday calculations. But how well do these systems actually handle basic math? And how much should users trust them ...

There is a common problem for all AI companies for overfitting to benchmarks. XAI Grok 4 has some problems with prompt adherence. XAI could have had overfitting resulted from the reinforcement ...

Grok 4.2 has no memory, so each prompt needs full context; use reasoning traces and source priority for clearer results.

I pushed eight free AI chatbots to their limits to find the best AI chatbots of 2026. To explore our top picks, check out ZDNET's chatbot-by-chatbot guide.