#xAI

@SawyerMerritt xAI 将作为独立公司解散，所以它将只是 SpaceXAI，来自 SpaceX 的 AI 产品

Grok 4.3 现已上线 xAI API。这是迄今为止我们最快、最智能的模型。 它在 @ArtificialAnlys 的智能体工具调用和指令跟随排行榜上位居榜首，并且在 @ValsAI 的企业领域（如判例法和公司金融）中排名第一。 Grok 4.3 支持 100 万模型 token 的上下文窗口，定价为每百万输入 token 1.25 美元，每百万输出 token 2.50 美元。 创建 API 密钥并开始构建：http://console.x.ai/team/default/api-keys

Nytimes: The White House is considering a government review process for major AI models before public release. The proposed review would not necessarily block releases, but it could give the U.S. government early access to test advanced models before the public gets them. The likely focus is cyber-capability, meaning whether a model can help discover, exploit, or chain software vulnerabilities at a level that changes real-world security risk. This is a major policy reversal because the same administration had rolled back Biden-era reporting rules for powerful AI systems and argued that heavy regulation could slow U.S. progress against China. The trigger was Anthropic’s Mythos model, which the company says is unusually strong at finding software security flaws and too risky to release widely. A model like this can scan code, identify weak points, and suggest attack paths much faster than a normal human security team. That makes it useful for defense agencies, but it also raises the fear that a public release could help attackers find bugs in banks, government systems, cloud tools, and critical infrastructure. --- nytimes. com/2026/05/04/technology/trump-ai-models.html

Grok 4.3 just became the smartest AI in the world at law and money It took #1 on TWO brutal private tests no other model could win on “Vals AI” benchmarks #1 CaseLaw (v2) - 79.31% accuracy Private Q&A benchmark over real Canadian court cases. Tests deep legal reasoning, precedent understanding, and precise answers from complex judgments. (outranking GPT-5.1 at 73.42%) #1 CorpFin (v2) - 68.53% accuracy Private benchmark on long-context credit agreements. Evaluates how well models truly understand dense, multi-page financial contracts, terms, risks, and clauses These are not just basic tests - they’re real-world, high-stakes legal + financial reasoning challenges Grok 4.3 leads in accuracy on both, proving it’s not just fast or cheap… it’s the smartest at the hardest real world tasks xAI is building the reasoning engine the world needs

Your entire creative workflow just collapsed into one infinite canvas. In @imagine Agent Mode, you can brainstorm, write, generate and edit images, then turn them into videos without leaving the page. Try it at http://grok.com/imagine, on desktop.

Grok 4.3 release > #1 in caselaw > #1 in corpfin > impressive given significantly lower cost per 1m tokens (5-10x less than opus 4.7 and openai 5.5) Very exciting to see the massive jump in performance in highly detail-oriented applied fields

Grok 4.3 is on AI Gateway. xAI's latest model, with improved tool calling and instruction following. Try it now with 𝚖𝚘𝚍𝚎𝚕: '𝚡𝚊𝚒/𝚐𝚛𝚘𝚔-𝟺.𝟹' https://vercel.com/changelog/grok-4-3-on-ai-gateway

This release shows increased cost efficiency to run the Artificial Analysis Intelligence Index, with Grok 4.3 sitting comfortably on the Pareto frontier for intelligence versus cost Driven by 37.5% lower input token prices and 58.3% lower output token prices, it costs $395 to run the Intelligence Index evaluations, an overall ~20% decrease from Grok 4.20 0309 v2

The new Grok-4.3 from @xai is live on OpenRouter! Grok-4.3 releases at a lower price than Grok-4.2, while seeing a large jump in agentic performance: a 321 point increase to 1500 ELO on @ArtificialAnlys GDPval-AA, surpassing other top models despite the lower price.