Is xAI Grok 4 or Anthropic: Claude Opus 4.1 cheaper?

xAI Grok 4 is cheaper on output tokens ($15.00 vs $75.00 per 1M).

Which has the larger context window, xAI Grok 4 or Anthropic: Claude Opus 4.1?

xAI Grok 4 has the larger context window (256K tokens).

xAI Grok 4 vs Anthropic: Claude Opus 4.1

xAI Grok 4 is cheaper on output tokens, while xAI Grok 4 offers a larger context window. Choose xAI Grok 4 or Anthropic: Claude Opus 4.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	xAI Grok 4	Anthropic: Claude Opus 4.1
Provider	Helicone	Helicone
Input / 1M tokens	$3.00	$15.00
Output / 1M tokens	$15.00	$75.00
Context window	256K	200K
Parameters	3T	—
Open weights	No	No
Released	Jul 2024	Aug 2025

xAI Grok 4 details →Anthropic: Claude Opus 4.1 details →

FAQ

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