DeepSeek V4 Flash vs xAI: Grok 4.3
Compare DeepSeek V4 Flash by DeepSeek against xAI: Grok 4.3 by xAI, context windows of 1.0M vs 1.0M, tested across 54 shared challenges. Updated May 2026.
Which is better, DeepSeek V4 Flash or xAI: Grok 4.3?
DeepSeek V4 Flash and xAI: Grok 4.3 are both competitive models. DeepSeek V4 Flash costs $0.14/M input tokens vs $1.25/M for xAI: Grok 4.3. Context windows: 1049K vs 1000K tokens. Compare their real outputs side by side below.
Key Differences Between DeepSeek V4 Flash and xAI: Grok 4.3
DeepSeek V4 Flash is made by deepseek while xAI: Grok 4.3 is from xai. DeepSeek V4 Flash has a 1049K token context window compared to xAI: Grok 4.3's 1000K. On pricing, DeepSeek V4 Flash costs $0.14/M input tokens vs $1.25/M for xAI: Grok 4.3.
Per 1M tokens
DeepSeek V4 Flash is cheaper on both — 8.9× input, 8.9× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
DeepSeek V4 Flash is 8.9x cheaper per token — worth considering if cost matters.
Style Comparison
DeepSeek V4 Flash uses 1.6x more bold
