Compare xAI: Grok 4 Fast (free) and Grok Code Fast 1, both from xAI, in 24 community votes, xai: grok 4 fast (free) wins 76% of head-to-head duels, context windows of 2.0M vs 256K, tested across 35 shared challenges. Updated May 2026.
xAI: Grok 4 Fast (free) is the better choice overall, winning 76% of 24 blind community votes on Rival. xAI: Grok 4 Fast (free) costs $0/M input tokens vs $0.2/M for Grok Code Fast 1. Context windows: 2000K vs 256K tokens. Compare their real outputs side by side below.
xAI: Grok 4 Fast (free) is made by xai while Grok Code Fast 1 is from xai. xAI: Grok 4 Fast (free) has a 2000K token context window compared to Grok Code Fast 1's 256K. On pricing, xAI: Grok 4 Fast (free) costs $0/M input tokens vs $0.2/M for Grok Code Fast 1. In community voting, In 24 community votes, xAI: Grok 4 Fast (free) wins 76% of head-to-head duels.
In 24 community votes, xAI: Grok 4 Fast (free) wins 76% of head-to-head duels. xAI: Grok 4 Fast (free) leads in Web Design, Image Generation, Reasoning. Based on blind community voting from the Rival open dataset of 24+ human preference judgments for this pair.
Pick xAI: Grok 4 Fast (free). In 24 blind votes, xAI: Grok 4 Fast (free) wins 76% of the time. That's not luck.
xAI: Grok 4 Fast (free) particularly excels in Reasoning, Image Generation, Web Design.
Grok Code Fast 1 uses 6.0x more emoji
Compare xAI: Grok 4 Fast (free) and Grok Code Fast 1, both from xAI, in 24 community votes, xai: grok 4 fast (free) wins 76% of head-to-head duels, context windows of 2.0M vs 256K, tested across 35 shared challenges. Updated May 2026.
xAI: Grok 4 Fast (free) is the better choice overall, winning 76% of 24 blind community votes on Rival. xAI: Grok 4 Fast (free) costs $0/M input tokens vs $0.2/M for Grok Code Fast 1. Context windows: 2000K vs 256K tokens. Compare their real outputs side by side below.
xAI: Grok 4 Fast (free) is made by xai while Grok Code Fast 1 is from xai. xAI: Grok 4 Fast (free) has a 2000K token context window compared to Grok Code Fast 1's 256K. On pricing, xAI: Grok 4 Fast (free) costs $0/M input tokens vs $0.2/M for Grok Code Fast 1. In community voting, In 24 community votes, xAI: Grok 4 Fast (free) wins 76% of head-to-head duels.
In 24 community votes, xAI: Grok 4 Fast (free) wins 76% of head-to-head duels. xAI: Grok 4 Fast (free) leads in Web Design, Image Generation, Reasoning. Based on blind community voting from the Rival open dataset of 24+ human preference judgments for this pair.
Pick xAI: Grok 4 Fast (free). In 24 blind votes, xAI: Grok 4 Fast (free) wins 76% of the time. That's not luck.
xAI: Grok 4 Fast (free) particularly excels in Reasoning, Image Generation, Web Design.
Grok Code Fast 1 uses 6.0x more emoji