DeepSeek V4.1 Flash vs Claude Opus 5.5 Pricing Comparison

Head-to-head token pricing, context window limits, and blended inference cost comparison between DeepSeek V4.1 Flash (DeepSeek) and Claude Opus 5.5 (Anthropic).

Direct Answer Summary (3:1 Blended Cost)

Claude Opus 5.5 costs 30.5x more than DeepSeek V4.1 Flash on a 3:1 blended token workload. DeepSeek V4.1 Flash has a context window of 1049k tokens, while Claude Opus 5.5 provides 1000k tokens.

DeepSeek

DeepSeek V4.1 Flash

Input / 1M
$0.1500
Output / 1M
$0.6000
3:1 Blended / 1M
$0.2625
Context Window
1049k tokens
Anthropic

Claude Opus 5.5

Input / 1M
$4.0000
Output / 1M
$20.0000
3:1 Blended / 1M
$8.0000
Context Window
1000k tokens
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