token.app › Compare › GPT-5.1-Codex-Mini vs Gemini 3.6 Flash

GPT-5.1-Codex-Mini vs Gemini 3.6 Flash

GPT-5.1-Codex-Mini is 2.2× cheaper per token on a blended 3:1 basis. Gemini 3.6 Flash accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
GPT-5.1-Codex-MiniGemini 3.6 Flash
ProviderOpenAIGoogle
Input $/1M$0.250$0.750
Output $/1M$2.00$3.75
Blended $/1M$0.688$1.50
Context window400K1.0M
Max output128K66K
ReleasedNov 2025Jul 2026
LicenceProprietaryProprietary
Choose GPT-5.1-Codex-Mini if…
  • Costs less per token — $0.688 vs $1.50 blended
Choose Gemini 3.6 Flash if…
  • Larger context window (1.0M)
  • Newer model (released Jul 2026)
FAQ
Which is better, GPT-5.1-Codex-Mini or Gemini 3.6 Flash?
We do not hold independently-run benchmark scores covering both GPT-5.1-Codex-Mini and Gemini 3.6 Flash, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-5.1-Codex-Mini cheaper than Gemini 3.6 Flash?
GPT-5.1-Codex-Mini is cheaper: $0.688 versus $1.50 per million tokens blended at 3:1 input:output. Input alone: $0.250 vs $0.750. Output alone: $2.00 vs $3.75.
What context windows do GPT-5.1-Codex-Mini and Gemini 3.6 Flash have?
GPT-5.1-Codex-Mini: 400,000 tokens. Gemini 3.6 Flash: 1,048,576 tokens.
Who makes GPT-5.1-Codex-Mini and Gemini 3.6 Flash?
GPT-5.1-Codex-Mini is made by OpenAI. Gemini 3.6 Flash is made by Google.
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