xAI: Grok 4 Fast (free) vs Pony Alpha
Compare xAI: Grok 4 Fast (free) by xAI against Pony Alpha by OpenRouter, context windows of 2.0M vs 200K, tested across 33 shared challenges. Updated June 2026.
Which is better, xAI: Grok 4 Fast (free) or Pony Alpha?
xAI: Grok 4 Fast (free) and Pony Alpha are both competitive models. xAI: Grok 4 Fast (free) costs $0/M input tokens vs $0/M for Pony Alpha. Context windows: 2000K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between xAI: Grok 4 Fast (free) and Pony Alpha
xAI: Grok 4 Fast (free) is made by xai while Pony Alpha is from openrouter. xAI: Grok 4 Fast (free) has a 2000K token context window compared to Pony Alpha's 200K. On pricing, xAI: Grok 4 Fast (free) costs $0/M input tokens vs $0/M for Pony Alpha.
Per 1M tokens
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Style Comparison
Pony Alpha uses 4.3x more bold
