Is Claude 4.5 Opus or Seed 1.6 Flash cheaper?

Seed 1.6 Flash is cheaper on output tokens ($0.41 vs $34.39 per 1M).

Which has the larger context window, Claude 4.5 Opus or Seed 1.6 Flash?

Seed 1.6 Flash has the larger context window (262K tokens).

Claude 4.5 Opus vs Seed 1.6 Flash

Seed 1.6 Flash is cheaper on output tokens, while Seed 1.6 Flash offers a larger context window. Choose Claude 4.5 Opus or Seed 1.6 Flash based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude 4.5 Opus	Seed 1.6 Flash
Provider	AI/ML API	AI/ML API
Input / 1M tokens	$6.88	$0.10
Output / 1M tokens	$34.39	$0.41
Context window	200K	262K
Parameters	—	—
Open weights	No	No
Released	Nov 2025	Aug 2025

Claude 4.5 Opus 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.