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GPT-5.6 Terra vs Gemini 3.5 Flash

GPT-5.6 Terra is cheaper on output tokens, while Gemini 3.5 Flash offers a larger context window. Choose GPT-5.6 Terra or Gemini 3.5 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecGPT-5.6 TerraGemini 3.5 Flash
ProviderXpersonaXpersona
Input / 1M tokens$1.50$1.55
Output / 1M tokens$2.00$12.20
Context window372K1M
Parameters——
Open weightsNoNo
ReleasedJul 2026May 2026

FAQ

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