Is xAI Grok Code Fast 1 or Anthropic: Claude Opus 4.1 cheaper?

xAI Grok Code Fast 1 is cheaper on output tokens ($1.50 vs $75.00 per 1M).

Which has the larger context window, xAI Grok Code Fast 1 or Anthropic: Claude Opus 4.1?

xAI Grok Code Fast 1 has the larger context window (256K tokens).

xAI Grok Code Fast 1 vs Anthropic: Claude Opus 4.1

xAI Grok Code Fast 1 is cheaper on output tokens, while xAI Grok Code Fast 1 offers a larger context window. Choose xAI Grok Code Fast 1 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 Code Fast 1	Anthropic: Claude Opus 4.1
Provider	Helicone	Helicone
Input / 1M tokens	$0.20	$15.00
Output / 1M tokens	$1.50	$75.00
Context window	256K	200K
Parameters	—	—
Open weights	No	No
Released	Aug 2024	Aug 2025

xAI Grok Code Fast 1 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.