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GPT-5.1 (2025-11-13) vs Gemini 3 Pro Image

GPT-5.1 (2025-11-13) is cheaper on output tokens, while Gemini 3 Pro Image offers a larger context window. Choose GPT-5.1 (2025-11-13) or Gemini 3 Pro Image based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-5.1 (2025-11-13)Gemini 3 Pro Image
ProviderNanoGPTNanoGPT
Input / 1M tokens$1.25$2.00
Output / 1M tokens$10.00$12.00
Context window1M1M
Parameters
Open weightsNoNo
ReleasedNov 2025Nov 2025

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.