ChatGPT-4o vs. Grok-2: A Definitive Showdown

We explore the comparative strengths of two advanced AI models: OpenAI’s ChatGPT-4o and xAI’s Grok-2. The analysis highlights their capabilities, costs, and potential applications, revealing distinct advantages depending on the use case.

1. Technical Performance:

• Academic and Professional Tasks: MMLU (Massive Multitask Language Understanding) represents a model’s ability to perform across a diverse set of academic and professional tasks. ChatGPT-4o leads in general knowledge (88.7% in 5-shot) while Grok-2 excels in professional tasks (75.5% in 0-shot).
• Coding: HumanEval represents a benchmark to evaluate a model’s ability to generate correct code solutions for programming challenges. ChatGPT-4o achieves superior coding capabilities with 90.2% on HumanEval compared to Grok-2’s 88.4%.
• Mathematical Reasoning: MATH represents a benchmark for evaluating a model’s mathematical reasoning capabilities through problem-solving accuracy. Grok-2 shines in mathematical reasoning with a 76.1% score.

2. Cost Efficiency:

ChatGPT-4o is notably cheaper:

• Input Tokens: $2.50/million vs. $5.00/million.
• Output Tokens: $10.00/million vs. $15.00/million.

3. Core Features:

• Both models support a 128K-token context window, enabling long-form content handling.
• ChatGPT-4o includes advanced features like web search with source attribution, while Grok-2 excels with real-time updates from X’s post feed and trending topic accuracy.

4. Multimodal Capabilities:

ChatGPT-4o supports text, images, audio, and video, including handwriting recognition and chart interpretation. Grok-2 focuses on text and images, with strong spatial reasoning and diagram analysis.

5. Security:

ChatGPT-4o offers enhanced data protection (SOC 2 compliance) and granular user control, while Grok-2 has basic opt-out settings and faces compliance challenges.

6. Use Cases:

• ChatGPT-4o: Ideal for enterprise applications requiring creativity, cost-effectiveness, and strong security.
• Grok-2: Best suited for real-time data analysis and scenarios demanding current context, like trending topics.

Note: The tools and analysis featured in this section demonstrated clear value based on our internal testing. Our recommendations are entirely independent and not influenced by the tool creators.