Grok-2 vs Grok-4 - AI Comparison for Builders | airank.dev

Grok-2 vs Grok-4

Comprehensive side-by-side LLM comparison

Grok-2 leads with 12.2% higher average benchmark score. Grok-4 offers 128.0K more tokens in context window than Grok-2. Grok-2 is $6.00 cheaper per million tokens. Overall, Grok-2 is the stronger choice for coding tasks.

xAI

Grok-2 is a multimodal language model developed by xAI. It achieves strong performance with an average score of 76.5% across 8 benchmarks. It excels particularly in DocVQA (93.6%), HumanEval (88.4%), MMLU (87.5%). It supports a 136K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2024, it represents xAI's latest advancement in AI technology.

xAI

Grok-4 is a multimodal language model developed by xAI. It achieves strong performance with an average score of 63.1% across 7 benchmarks. It excels particularly in AIME 2025 (91.7%), HMMT25 (90.0%), GPQA (87.5%). It supports a 264K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents xAI's latest advancement in AI technology.

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