token.app › Compare › Claude Sonnet 4.5 (batch) vs DeepSeek V4 Flash Latest

Claude Sonnet 4.5 (batch) vs DeepSeek V4 Flash Latest

DeepSeek V4 Flash Latest is 27× cheaper per token on a blended 3:1 basis. DeepSeek V4 Flash Latest accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
Claude Sonnet 4.5 (batch)DeepSeek V4 Flash Latest
ProviderAnthropic~deepseek
Input $/1M$1.50$0.090
Output $/1M$7.50$0.180
Blended $/1M$3.00$0.113
Context window1M1.0M
Max output64K384K
ReleasedSep 2025Aug 2026
LicenceProprietaryProprietary
Choose Claude Sonnet 4.5 (batch) if…
  • No clear advantage on the data we hold.
Choose DeepSeek V4 Flash Latest if…
  • Costs less per token — $0.113 vs $3.00 blended
  • Larger context window (1.0M)
  • Newer model (released Aug 2026)
FAQ
Which is better, Claude Sonnet 4.5 (batch) or DeepSeek V4 Flash Latest?
We do not hold independently-run benchmark scores covering both Claude Sonnet 4.5 (batch) and DeepSeek V4 Flash Latest, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Claude Sonnet 4.5 (batch) cheaper than DeepSeek V4 Flash Latest?
DeepSeek V4 Flash Latest is cheaper: $0.113 versus $3.00 per million tokens blended at 3:1 input:output. Input alone: $1.50 vs $0.090. Output alone: $7.50 vs $0.180.
What context windows do Claude Sonnet 4.5 (batch) and DeepSeek V4 Flash Latest have?
Claude Sonnet 4.5 (batch): 1,000,000 tokens. DeepSeek V4 Flash Latest: 1,048,576 tokens.
Who makes Claude Sonnet 4.5 (batch) and DeepSeek V4 Flash Latest?
Claude Sonnet 4.5 (batch) is made by Anthropic. DeepSeek V4 Flash Latest is made by ~deepseek.
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