Featured Snippet Answer Grok 4.3 is the better raw-cost choice for output-heavy reasoning agents, while Gemini 3.5 Flash is the stronger default for multimodal, coding, and Google-grounded workflows.

Grok 4.5 topped AutomationBench-AA at 51.4% and $0.34 per task, backing Musk's Opus-class cost and efficiency claim.

Elon Musk escalated tensions in the critical artificial intelligence race Thursday, asserting his most advanced AI model, Grok 4 Heavy, was already outperforming OpenAI’s newly launched GPT-5 two ...

Benchmark estimates put Grok 4.5 at $2.49 per coding task versus $5.07 for GPT-5.5 in Codex and $11.80 for Fable 5 in Claude ...

When xAI launched Grok 4 last week, the company claimed the large language model outperformed several competitors on different benchmarks. But the Grok account on X that runs off the model immediately ...

Grok 4 had lower lmarena scores than I had projected based upon the amount AI training compute used. I had projections for Grok 3.5 which was renamed Grok 4. We do not have elo lmarena score for Grok ...

Grok 4.5, in what is its first major launch since it went public a few weeks earlier. In a blog post earlier today, the ...

xAI added Grok 4 powered vending machine in its office, in partnership with Andon Labs. XAI Grok 4 beat OpenAI GPT-5 in real world vending machine operation This shows Grok 4’s long-term coherence ...

What if the key to solving your most complex challenges wasn’t a team of experts, but a single, innovative AI? Enter Grok 4, a model that doesn’t just promise smarter assistance—it delivers it with ...

With all the AI news coming out each week, some of the more significant advancements can be hard to track. Grok 4 Fast is streamlined version of xAI's flagship Grok 4 model released back in July 2025.