Claude 3 Opus vs Grok 3 Beta
Compare Claude 3 Opus by Anthropic against Grok 3 Beta by xAI, context windows of 200K vs 131K, tested across 12 shared challenges. Updated April 2026.
Which is better, Claude 3 Opus or Grok 3 Beta?
Claude 3 Opus and Grok 3 Beta are both competitive models. Claude 3 Opus costs $15/M input tokens vs $2/M for Grok 3 Beta. Context windows: 200K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3 Opus and Grok 3 Beta
Claude 3 Opus is made by anthropic while Grok 3 Beta is from xai. Claude 3 Opus has a 200K token context window compared to Grok 3 Beta's 131K. On pricing, Claude 3 Opus costs $15/M input tokens vs $2/M for Grok 3 Beta.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Grok 3 Beta is 19x cheaper per token — worth considering if cost matters.
Style Comparison
Grok 3 Beta uses 309.1x more bold
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
