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DeepSeek V4 Flash vs Claude Opus 5.5

DeepSeek V4 Flash is cheaper on output tokens. Choose DeepSeek V4 Flash or Claude Opus 5.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecDeepSeek V4 FlashClaude Opus 5.5
ProviderCrossModelCrossModel
Input / 1M tokens$0.30$4.00
Output / 1M tokens$1.20$20.00
Context window1M1M
Parameters——
Open weightsYesNo
ReleasedApr 2026Sep 2026

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.