Is Claude 4.5 Sonnet or Seed 1.6 Flash cheaper?

Seed 1.6 Flash is cheaper on output tokens ($0.41 vs $20.63 per 1M).

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

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

Claude 4.5 Sonnet 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 Sonnet 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 Sonnet	Seed 1.6 Flash
Provider	AI/ML API	AI/ML API
Input / 1M tokens	$4.13	$0.10
Output / 1M tokens	$20.63	$0.41
Context window	200K	262K
Parameters	—	—
Open weights	No	No
Released	Sep 2025	Aug 2025

Claude 4.5 Sonnet 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.