Is xAI: Grok Build 0.1 or Anthropic: Claude Opus 4.5 cheaper?

xAI: Grok Build 0.1 is cheaper on output tokens ($2.00 vs $25.00 per 1M).

Which has the larger context window, xAI: Grok Build 0.1 or Anthropic: Claude Opus 4.5?

xAI: Grok Build 0.1 has the larger context window (256K tokens).

xAI: Grok Build 0.1 vs Anthropic: Claude Opus 4.5

xAI: Grok Build 0.1 is cheaper on output tokens, while xAI: Grok Build 0.1 offers a larger context window. Choose xAI: Grok Build 0.1 or Anthropic: Claude Opus 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	xAI: Grok Build 0.1	Anthropic: Claude Opus 4.5
Provider	Kilo Gateway	Kilo Gateway
Input / 1M tokens	$1.00	$5.00
Output / 1M tokens	$2.00	$25.00
Context window	256K	200K
Parameters	—	—
Open weights	No	No
Released	May 2026	Nov 2025

xAI: Grok Build 0.1 details →Anthropic: Claude Opus 4.5 details →

FAQ

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