Reasoning

Grok 4 - xAI's Flagship Reasoning Model

Grok 4 - xAI's Flagship Reasoning Model

Grok 4 is xAI's frontier reasoning model, the first to break 50% on Humanity's Last Exam, with a 256K context window, $3/M input pricing, and a Heavy multi-agent variant built on 200,000 GPUs.

Qwen3.5-27B Distilled vs Base: What You Gain

Qwen3.5-27B Distilled vs Base: What You Gain

Comparing the Claude Opus reasoning-distilled Qwen3.5-27B against the base model - what chain-of-thought distillation adds and what it costs in context, multimodal, and reliability.