Claude Opus 4.1 vs DeepSeek V3 (March 2024)
Compare Claude Opus 4.1 by Anthropic against DeepSeek V3 (March 2024) by DeepSeek, context windows of 200K vs 128K, tested across 53 shared challenges. Updated May 2026.
Which is better, Claude Opus 4.1 or DeepSeek V3 (March 2024)?
Claude Opus 4.1 and DeepSeek V3 (March 2024) are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $0.14/M for DeepSeek V3 (March 2024). Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and DeepSeek V3 (March 2024)
Claude Opus 4.1 is made by anthropic while DeepSeek V3 (March 2024) is from deepseek. Claude Opus 4.1 has a 200K token context window compared to DeepSeek V3 (March 2024)'s 128K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $0.14/M for DeepSeek V3 (March 2024).
Per 1M tokens
DeepSeek V3 (March 2024) is cheaper on both — 107× input, 268× output
No community votes yet. On paper, Claude Opus 4.1 has the edge — newer, bigger context window.
DeepSeek V3 (March 2024) is 268x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4.1 uses 4.8x more sentence length
