Grok 4 vs GPT-5: Musk Reignites AI Wars

Shortly after OpenAI’s highly anticipated GPT-5 launch, Elon Musk—CEO of xAI—has made bold claims about his own AI model, stating that Grok 4 Heavy still outperforms GPT-5. In a series of posts on X (formerly Twitter), Musk dubbed Grok 4 “the most intelligent model in the world” and alleged it surpassed GPT-5 weeks before its release.

Grok 4 Leads on ARC-AGI 2 Benchmark

Musk backed his claim by pointing to results from the ARC-AGI 2 benchmark, a test measuring abstract reasoning and problem-solving capabilities in AI. He emphasized that Grok 4 Thinking continues to outperform GPT-5 High on this leaderboard, suggesting Grok has a cognitive edge in tasks that simulate human-level general intelligence.

Grok 5 to Arrive Before Year-End: “Crushingly Good”

In the same announcement, Musk teased the upcoming Grok 5, stating it will be released before the end of the year and will be “crushingly good.” Though details remain under wraps, expectations are high that Grok 5 will raise the bar even further in the ongoing race for AI dominance.

Grok Imagine: New AI Image and Video Generator Now Available

Alongside the performance claims, xAI rolled out Grok Imagine, a powerful text-to-image and video generator, now available to all Grok users. This positions xAI to compete directly with tools like DALL·E, Midjourney, and Runway, expanding its AI portfolio beyond chat capabilities.

Musk Targets Microsoft and OpenAI

Musk didn’t hold back in his criticism of rivals. In a pointed remark, he stated that OpenAI could “eat Microsoft alive”, signaling his skepticism about Microsoft’s reliance on OpenAI models, including GPT-5, which is integrated into products like Copilot for Microsoft 365 and Azure AI services.

OpenAI Defends GPT-5 with Major Feature Updates

Meanwhile, OpenAI has rolled out GPT-5 with several advanced features:

Natural language app and website generation

Significant improvements in coding, mathematics, writing, visual reasoning, and even healthcare use cases

Dynamic switching between “reasoning mode” and “efficiency mode,” optimizing responses based on the query

These enhancements signal OpenAI’s push to make GPT-5 a multi-modal, enterprise-ready tool.

GPT-5 Availability and Access Tiers

GPT-5 is currently available for free with a usage cap. After exceeding the limit, users are automatically shifted to a lighter version. For more advanced access:

ChatGPT Plus subscribers receive a higher cap

Pro users get full access to the GPT-5 Pro version, offering maximum performance and speed

The AI Race Heats Up

As xAI and OpenAI continue to push the limits of AI intelligence, the competition is no longer just about performance—it’s also about ecosystem control, developer tools, and user reach.

Whether Grok 5 will dominate the field as Musk predicts, or GPT-5 will maintain OpenAI’s lead, remains to be seen. But one thing is clear: the AI wars of 2025 have only just begun.

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