Compare DeepSeek V3.1 by DeepSeek against Grok 4.20 Beta by xAI, context windows of 164K vs 2.0M, tested across 53 shared challenges. Updated April 2026.
DeepSeek V3.1 and Grok 4.20 Beta are both competitive models. DeepSeek V3.1 costs $0.2/M input tokens vs $2/M for Grok 4.20 Beta. Context windows: 164K vs 2000K tokens. Compare their real outputs side by side below.
DeepSeek V3.1 is made by deepseek while Grok 4.20 Beta is from xai. DeepSeek V3.1 has a 164K token context window compared to Grok 4.20 Beta's 2000K. On pricing, DeepSeek V3.1 costs $0.2/M input tokens vs $2/M for Grok 4.20 Beta.
No community votes yet. On paper, Grok 4.20 Beta has the edge — newer, bigger context window.
DeepSeek V3.1 is 7.5x cheaper per token — worth considering if cost matters.
DeepSeek V3.1 uses 2.4x 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 DeepSeek V3.1 by DeepSeek against Grok 4.20 Beta by xAI, context windows of 164K vs 2.0M, tested across 53 shared challenges. Updated April 2026.
DeepSeek V3.1 and Grok 4.20 Beta are both competitive models. DeepSeek V3.1 costs $0.2/M input tokens vs $2/M for Grok 4.20 Beta. Context windows: 164K vs 2000K tokens. Compare their real outputs side by side below.
DeepSeek V3.1 is made by deepseek while Grok 4.20 Beta is from xai. DeepSeek V3.1 has a 164K token context window compared to Grok 4.20 Beta's 2000K. On pricing, DeepSeek V3.1 costs $0.2/M input tokens vs $2/M for Grok 4.20 Beta.
No community votes yet. On paper, Grok 4.20 Beta has the edge — newer, bigger context window.
DeepSeek V3.1 is 7.5x cheaper per token — worth considering if cost matters.
DeepSeek V3.1 uses 2.4x 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