token.app › Compare › DeepSeek V4.1 Flash 1017 vs Claude Opus 5

DeepSeek V4.1 Flash 1017 vs Claude Opus 5

DeepSeek V4.1 Flash 1017 is 38× cheaper per token on a blended 3:1 basis. DeepSeek V4.1 Flash 1017 accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
DeepSeek V4.1 Flash 1017Claude Opus 5
ProviderDeepSeekAnthropic
Input $/1M$0.150$5.00
Output $/1M$0.600$25.00
Blended $/1M$0.262$10.00
Context window1.0M1M
Max output393K128K
ReleasedOct 2026Jul 2026
LicenceOpen weightsProprietary
Choose DeepSeek V4.1 Flash 1017 if…
  • Costs less per token — $0.262 vs $10.00 blended
  • Larger context window (1.0M)
  • Open weights — self-hostable
  • Newer model (released Oct 2026)
Choose Claude Opus 5 if…
  • No clear advantage on the data we hold.
FAQ
Which is better, DeepSeek V4.1 Flash 1017 or Claude Opus 5?
We do not hold independently-run benchmark scores covering both DeepSeek V4.1 Flash 1017 and Claude Opus 5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is DeepSeek V4.1 Flash 1017 cheaper than Claude Opus 5?
DeepSeek V4.1 Flash 1017 is cheaper: $0.262 versus $10.00 per million tokens blended at 3:1 input:output. Input alone: $0.150 vs $5.00. Output alone: $0.600 vs $25.00.
What context windows do DeepSeek V4.1 Flash 1017 and Claude Opus 5 have?
DeepSeek V4.1 Flash 1017: 1,048,576 tokens. Claude Opus 5: 1,000,000 tokens.
Who makes DeepSeek V4.1 Flash 1017 and Claude Opus 5?
DeepSeek V4.1 Flash 1017 is made by DeepSeek. Claude Opus 5 is made by Anthropic.
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