Is GPT-5.6 Terra Pro or Seed 1.6 Flash cheaper?

Seed 1.6 Flash is cheaper on output tokens ($0.41 vs $16.50 per 1M).

Which has the larger context window, GPT-5.6 Terra Pro or Seed 1.6 Flash?

GPT-5.6 Terra Pro has the larger context window (1.1M tokens).

GPT-5.6 Terra Pro vs Seed 1.6 Flash

Seed 1.6 Flash is cheaper on output tokens, while GPT-5.6 Terra Pro offers a larger context window. Choose GPT-5.6 Terra Pro or Seed 1.6 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-5.6 Terra Pro	Seed 1.6 Flash
Provider	AI/ML API	AI/ML API
Input / 1M tokens	$2.75	$0.10
Output / 1M tokens	$16.50	$0.41
Context window	1.1M	262K
Parameters	—	—
Open weights	No	No
Released	Jul 2026	Aug 2025

GPT-5.6 Terra Pro details →Seed 1.6 Flash details →

FAQ

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