Compare Grok Code Fast 1 by xAI against Qwen: Qwen3.5 27B by Qwen, in 23 community votes, qwen: qwen3.5 27b wins 86% of head-to-head duels, context windows of 256K vs 262K, tested across 53 shared challenges. Updated April 2026.
Qwen: Qwen3.5 27B is the better choice overall, winning 86% of 23 blind community votes on Rival. Grok Code Fast 1 costs $0.2/M input tokens vs $0.3/M for Qwen: Qwen3.5 27B. Context windows: 256K vs 262K tokens. Compare their real outputs side by side below.
Grok Code Fast 1 is made by xai while Qwen: Qwen3.5 27B is from qwen. Grok Code Fast 1 has a 256K token context window compared to Qwen: Qwen3.5 27B's 262K. On pricing, Grok Code Fast 1 costs $0.2/M input tokens vs $0.3/M for Qwen: Qwen3.5 27B. In community voting, In 23 community votes, Qwen: Qwen3.5 27B wins 86% of head-to-head duels.
In 23 community votes, Qwen: Qwen3.5 27B wins 86% of head-to-head duels. Qwen: Qwen3.5 27B leads in Web Design, Image Generation. Based on blind community voting from the Rival open dataset of 23+ human preference judgments for this pair.
Pick Qwen: Qwen3.5 27B. In 23 blind votes, Qwen: Qwen3.5 27B wins 86% of the time. That's not luck.
Qwen: Qwen3.5 27B particularly excels in Web Design, Image Generation.
Grok Code Fast 1 uses 6.0x more emoji
Ask 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.

Compare Grok Code Fast 1 by xAI against Qwen: Qwen3.5 27B by Qwen, in 23 community votes, qwen: qwen3.5 27b wins 86% of head-to-head duels, context windows of 256K vs 262K, tested across 53 shared challenges. Updated April 2026.
Qwen: Qwen3.5 27B is the better choice overall, winning 86% of 23 blind community votes on Rival. Grok Code Fast 1 costs $0.2/M input tokens vs $0.3/M for Qwen: Qwen3.5 27B. Context windows: 256K vs 262K tokens. Compare their real outputs side by side below.
Grok Code Fast 1 is made by xai while Qwen: Qwen3.5 27B is from qwen. Grok Code Fast 1 has a 256K token context window compared to Qwen: Qwen3.5 27B's 262K. On pricing, Grok Code Fast 1 costs $0.2/M input tokens vs $0.3/M for Qwen: Qwen3.5 27B. In community voting, In 23 community votes, Qwen: Qwen3.5 27B wins 86% of head-to-head duels.
In 23 community votes, Qwen: Qwen3.5 27B wins 86% of head-to-head duels. Qwen: Qwen3.5 27B leads in Web Design, Image Generation. Based on blind community voting from the Rival open dataset of 23+ human preference judgments for this pair.
Pick Qwen: Qwen3.5 27B. In 23 blind votes, Qwen: Qwen3.5 27B wins 86% of the time. That's not luck.
Qwen: Qwen3.5 27B particularly excels in Web Design, Image Generation.
Grok Code Fast 1 uses 6.0x more emoji
Ask 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.

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48 fights queued
36+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy