Compare Grok 3 Beta by xAI against GPT-5 by OpenAI, context windows of 131K vs 400K, tested across 46 shared challenges. Updated April 2026.
Grok 3 Beta and GPT-5 are both competitive models. Grok 3 Beta costs $2/M input tokens vs $1.25/M for GPT-5. Context windows: 131K vs 400K tokens. Compare their real outputs side by side below.
Grok 3 Beta is made by xai while GPT-5 is from openai. Grok 3 Beta has a 131K token context window compared to GPT-5's 400K. On pricing, Grok 3 Beta costs $2/M input tokens vs $1.25/M for GPT-5.
46 fights queued
Tests an AI's ability to make educated estimates based on technical knowledge
Tests an AI's ability to understand game rules and strategy
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Tests an AI's understanding of number representation
Tests an AI's randomness and creativity
Tests an AI's ability to generate vector graphics
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Tests an AI's humor and creative writing ability
Tests an AI's ability to simulate personalities and predict future trends
Tests an AI's humor and understanding of current events
Tests an AI's ability to write in distinct character voices
Tests an AI's ability to generate a complete, working landing page
34+ more head-to-head results. Free. Not a trick.
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No community votes yet. On paper, GPT-5 has the edge — newer, bigger context window.
Grok 3 Beta uses 16.4x more bold
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