token.app › Compare › GPT-5.1-Codex-Mini vs DeepSeek V4 Flash Latest

GPT-5.1-Codex-Mini vs DeepSeek V4 Flash Latest

DeepSeek V4 Flash Latest is 6.1× 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
GPT-5.1-Codex-MiniDeepSeek V4 Flash Latest
ProviderOpenAI~deepseek
Input $/1M$0.250$0.090
Output $/1M$2.00$0.180
Blended $/1M$0.688$0.113
Context window400K1.0M
Max output128K384K
ReleasedNov 2025Aug 2026
LicenceProprietaryProprietary
Choose GPT-5.1-Codex-Mini if…
  • No clear advantage on the data we hold.
Choose DeepSeek V4 Flash Latest if…
  • Costs less per token — $0.113 vs $0.688 blended
  • Larger context window (1.0M)
  • Newer model (released Aug 2026)
FAQ
Which is better, GPT-5.1-Codex-Mini or DeepSeek V4 Flash Latest?
We do not hold independently-run benchmark scores covering both GPT-5.1-Codex-Mini and DeepSeek V4 Flash Latest, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-5.1-Codex-Mini cheaper than DeepSeek V4 Flash Latest?
DeepSeek V4 Flash Latest is cheaper: $0.113 versus $0.688 per million tokens blended at 3:1 input:output. Input alone: $0.250 vs $0.090. Output alone: $2.00 vs $0.180.
What context windows do GPT-5.1-Codex-Mini and DeepSeek V4 Flash Latest have?
GPT-5.1-Codex-Mini: 400,000 tokens. DeepSeek V4 Flash Latest: 1,048,576 tokens.
Who makes GPT-5.1-Codex-Mini and DeepSeek V4 Flash Latest?
GPT-5.1-Codex-Mini is made by OpenAI. DeepSeek V4 Flash Latest is made by ~deepseek.
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