Is Claude Sonnet 4 or Anthropic: Claude Opus 4.8 cheaper?

Claude Sonnet 4 is cheaper on output tokens ($15.00 vs $25.00 per 1M).

Which has the larger context window, Claude Sonnet 4 or Anthropic: Claude Opus 4.8?

Anthropic: Claude Opus 4.8 has the larger context window (1M tokens).

Claude Sonnet 4 vs Anthropic: Claude Opus 4.8

Claude Sonnet 4 is cheaper on output tokens, while Anthropic: Claude Opus 4.8 offers a larger context window. Choose Claude Sonnet 4 or Anthropic: Claude Opus 4.8 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude Sonnet 4	Anthropic: Claude Opus 4.8
Provider	Anthropic	Anthropic
Input / 1M tokens	$3.00	$5.00
Output / 1M tokens	$15.00	$25.00
Context window	200K	1M
Parameters	—	—
Open weights	No	—
Released	May 2025	—

Claude Sonnet 4 details →Anthropic: Claude Opus 4.8 details →

FAQ

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