Grok 3 Beta vs xAI: Grok 4
Compare Grok 3 Beta and xAI: Grok 4, both from xAI, context windows of 131K vs 256K, tested across 53 shared challenges. Updated April 2026.
Which is better, Grok 3 Beta or xAI: Grok 4?
Grok 3 Beta and xAI: Grok 4 are both competitive models. Grok 3 Beta costs $2/M input tokens vs $3/M for xAI: Grok 4. Context windows: 131K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 Beta and xAI: Grok 4
Grok 3 Beta is made by xai while xAI: Grok 4 is from xai. Grok 3 Beta has a 131K token context window compared to xAI: Grok 4's 256K. On pricing, Grok 3 Beta costs $2/M input tokens vs $3/M for xAI: Grok 4.
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 3.8x cheaper per token — worth considering if cost matters.
Style Comparison
xAI: Grok 4 uses 7.0x more emoji
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.
