10-07-2025
Grok 4 vs Grok 3: What makes Elon Musk's newest AI model the "world's most powerful AI'
Elon Musk
's
xAI
has released the
Grok
4, just five months after Grok 3's debut earlier this year. The latest model promises a quantum leap in performance, achieving perfect scores on math competitions while commanding a premium $300 monthly subscription. While
Grok 3
established the foundation with strong reasoning capabilities and mainstream accessibility,
Grok 4
now positions itself as the "world's most powerful AI model," marking xAI's rapid ascent in advanced AI territory. Here's a comparison between xAI's Grok 4 and Grok 3.
Grok 4 vs Grok 3: The performance comparison
Grok 4 dominates academic benchmarks with remarkable precision. On the American Invitational Mathematics Examination (AIME), Grok 4 achieved a perfect 100% score compared to Grok 3's 52.2%. The Graduate-level Physics Question Answering (GPQA) test shows Grok 4 scoring 87% against Grok 3's 75.4%.
Most impressively, Grok 4 scored 25.4% on Humanity's Last Exam without tools, outperforming Google's
Gemini
2.5 Pro (21.6%) and OpenAI's o3 (21%). With tools enabled, Grok 4 Heavy variant reaches 44.4%, nearly double Gemini's 26.9%.
by Taboola
by Taboola
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The ARC-AGI-2 benchmark, testing visual pattern recognition, shows Grok 4 achieving 16.2%, twice the performance of the next-best commercial model, Claude Opus 4. On coding benchmarks, Grok 4 handles 256,000 tokens compared to Grok 3's 131,072 tokens, enabling processing of significantly larger codebases.
Grok 3 utilized 200,000 GPUs with 10x more compute than Grok 2. Grok 4's training details remain undisclosed, but performance improvements suggest even greater computational resources.
Grok 4 vs Grok 3: Upgraded technical capabilities
Grok 4 represents a fundamental shift in AI design. Unlike Grok 3, which offered both reasoning and non-reasoning modes, Grok 4 operates exclusively as a reasoning model. This architectural change eliminates quick responses in favor of deeper, more accurate problem-solving.
The context window expansion from 131,072 tokens (Grok 3) to 256,000 tokens (Grok 4) enables processing documents twice as large. Grok 4 integrates real-time data from X, Tesla, and SpaceX platforms, providing current information that Grok 3 lacked.
Multimodal capabilities distinguish the models significantly. Grok 4 supports text and vision modalities with image generation coming soon, while Grok 3 focused primarily on text-based interactions. xAI plans specialized variants including Grok 4 Code (August 2025) and video generation models (October 2025).
Grok 4 vs Grok 3: Pricing and availability
The cost difference reflects capability gaps. Grok 3 maintains $3 per million input tokens and $15 per million output tokens through xAI's API. Grok 4 uses identical API pricing but introduces SuperGrok Heavy subscription at $300 monthly, the highest among major AI providers.
This premium positioning targets enterprise users and researchers requiring cutting-edge performance. OpenAI, Google, and Anthropic offer similar ultra-premium tiers, but none match xAI's $300 monthly price point.
Both models integrate into X's social platform, but Grok 4's launch follows controversy around Grok 3's generation of antisemitic content and misinformation. xAI addressed these issues by removing "politically incorrect" guidance from system prompts and implementing stricter safeguards.
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