token.app › Compare › DeepSeek V4.1 Flash vs Claude Opus 5

DeepSeek V4.1 Flash vs Claude Opus 5

DeepSeek V4.1 Flash is 19× cheaper per token on a blended 3:1 basis. DeepSeek V4.1 Flash accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
DeepSeek V4.1 FlashClaude Opus 5
ProviderDeepSeekAnthropic
Input $/1M$0.300$5.00
Output $/1M$1.20$25.00
Blended $/1M$0.525$10.00
Context window1.0M1M
Max output944K128K
ReleasedSep 2026Jul 2026
LicenceOpen weightsProprietary
Choose DeepSeek V4.1 Flash if…
  • Costs less per token — $0.525 vs $10.00 blended
  • Larger context window (1.0M)
  • Open weights — self-hostable
  • Newer model (released Sep 2026)
Choose Claude Opus 5 if…
  • No clear advantage on the data we hold.
FAQ
Which is better, DeepSeek V4.1 Flash or Claude Opus 5?
We do not hold independently-run benchmark scores covering both DeepSeek V4.1 Flash and Claude Opus 5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is DeepSeek V4.1 Flash cheaper than Claude Opus 5?
DeepSeek V4.1 Flash is cheaper: $0.525 versus $10.00 per million tokens blended at 3:1 input:output. Input alone: $0.300 vs $5.00. Output alone: $1.20 vs $25.00.
What context windows do DeepSeek V4.1 Flash and Claude Opus 5 have?
DeepSeek V4.1 Flash: 1,048,576 tokens. Claude Opus 5: 1,000,000 tokens.
Who makes DeepSeek V4.1 Flash and Claude Opus 5?
DeepSeek V4.1 Flash is made by DeepSeek. Claude Opus 5 is made by Anthropic.
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