Is Claude Opus 4.8 cheaper than Claude Sonnet 5?

Claude Sonnet 5 is cheaper, at $3.00 per 1M input tokens versus $15.00.

Which has the larger context window, Claude Opus 4.8 or Claude Sonnet 5?

Claude Opus 4.8 has the larger context window at 500K tokens.

Claude Sonnet 5 is cheaper on input ($3.00 vs $15.00 per 1M tokens), Claude Opus 4.8 has the larger context window (500K).

Spec	Claude Opus 4.8	Claude Sonnet 5
Provider	Anthropic	Anthropic
Modality	Text + Vision	Text + Vision
Context window	500Kbest	400K
Input / 1M	$15.00	$3.00best
Output / 1M	$75.00	$15.00best
Released	Jan 2026	Feb 2026
Best for	Chat / Assistant, Code generation, Image / Vision	Chat / Assistant, Code generation, Image / Vision

Is Claude Opus 4.8 cheaper than Claude Sonnet 5?: Claude Sonnet 5 is cheaper, at $3.00 per 1M input tokens versus $15.00.
Which has the larger context window, Claude Opus 4.8 or Claude Sonnet 5?: Claude Opus 4.8 has the larger context window at 500K tokens.