Is Grok 4.20 (Non-Reasoning) or xAI: Grok Build 0.1 cheaper?

xAI: Grok Build 0.1 is cheaper on output tokens ($2.00 vs $2.50 per 1M).

Which has the larger context window, Grok 4.20 (Non-Reasoning) or xAI: Grok Build 0.1?

Grok 4.20 (Non-Reasoning) has the larger context window (1M tokens).

Grok 4.20 (Non-Reasoning) vs xAI: Grok Build 0.1

xAI: Grok Build 0.1 is cheaper on output tokens, while Grok 4.20 (Non-Reasoning) offers a larger context window. Choose Grok 4.20 (Non-Reasoning) or xAI: Grok Build 0.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Grok 4.20 (Non-Reasoning)	xAI: Grok Build 0.1
Provider	xAI	xAI
Input / 1M tokens	$1.25	$1.00
Output / 1M tokens	$2.50	$2.00
Context window	1M	256K
Parameters	—	—
Open weights	No	—
Released	Mar 2026	—

Grok 4.20 (Non-Reasoning) details →xAI: Grok Build 0.1 details →

FAQ

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