Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-5 Pro is an extended-reasoning variant from the GPT-5 family that applies more compute per response for deeper, more thorough answers on complex problems. It features the same 400K token context window and multimodal capabilities as GPT-5, with additional reasoning depth suited to research-grade analysis, advanced coding, and tasks requiring comprehensive, accurate outputs.
xAI
Grok 4, released by xAI on July 10, 2025, is a large language model featuring first-principles reasoning and comprehensive multimodal support. It features a 260K token context window and demonstrated strong performance on advanced reasoning and coding benchmarks. Grok 4 targets complex multi-step reasoning tasks, scientific analysis, and agentic workflows via the xAI API.
28 days newer

Grok 4
xAI
2025-07-10

GPT-5 Pro
OpenAI
2025-08-07
Context window and performance specifications
Available providers and their performance metrics
GPT-5 Pro
Grok 4
xAI
GPT-5 Pro
Grok 4
GPT-5 Pro
Grok 4