Claude Opus 4.1 vs DeepSeek V4 Flash
Compare Claude Opus 4.1 by Anthropic against DeepSeek V4 Flash by DeepSeek, context windows of 200K vs 1.0M, tested across 53 shared challenges. Updated April 2026.
Which is better, Claude Opus 4.1 or DeepSeek V4 Flash?
Claude Opus 4.1 and DeepSeek V4 Flash are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $0.14/M for DeepSeek V4 Flash. Context windows: 200K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and DeepSeek V4 Flash
Claude Opus 4.1 is made by anthropic while DeepSeek V4 Flash is from deepseek. Claude Opus 4.1 has a 200K token context window compared to DeepSeek V4 Flash's 1049K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $0.14/M for DeepSeek V4 Flash.
Per 1M tokens
DeepSeek V4 Flash is cheaper on both — 107× input, 268× 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 268x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4.1 uses 38.4x more emoji
