token.app › Compare › DeepSeek V4.1 Flash vs Mercury 3

DeepSeek V4.1 Flash vs Mercury 3

Mercury 3 is 3.2× 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 FlashMercury 3
ProviderDeepSeekInception
Input $/1M$0.300$0.100
Output $/1M$1.20$0.350
Blended $/1M$0.525$0.163
Context window1.0M1M
Max output944K131K
ReleasedSep 2026Oct 2026
LicenceOpen weightsProprietary
Choose DeepSeek V4.1 Flash if…
  • Larger context window (1.0M)
  • Open weights — self-hostable
Choose Mercury 3 if…
  • Costs less per token — $0.163 vs $0.525 blended
  • Newer model (released Oct 2026)
FAQ
Which is better, DeepSeek V4.1 Flash or Mercury 3?
We do not hold independently-run benchmark scores covering both DeepSeek V4.1 Flash and Mercury 3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is DeepSeek V4.1 Flash cheaper than Mercury 3?
Mercury 3 is cheaper: $0.163 versus $0.525 per million tokens blended at 3:1 input:output. Input alone: $0.300 vs $0.100. Output alone: $1.20 vs $0.350.
What context windows do DeepSeek V4.1 Flash and Mercury 3 have?
DeepSeek V4.1 Flash: 1,048,576 tokens. Mercury 3: 1,000,000 tokens.
Who makes DeepSeek V4.1 Flash and Mercury 3?
DeepSeek V4.1 Flash is made by DeepSeek. Mercury 3 is made by Inception.
Related comparisons
DeepSeek V4.1 Flash full details Mercury 3 full details DeepSeek V4.1 Flash vs Flint (free) DeepSeek V4.1 Flash vs MiniMax M3.1 Flash (free) DeepSeek V4.1 Flash vs DeepSeek V4.1 Flash 1017 DeepSeek V4.1 Flash vs Glimpse DeepSeek V4.1 Flash vs Xing4.0 29B A4B (free) DeepSeek V4.1 Flash vs Beam 1.0 501B A23B