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

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

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

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

Grok Build 0.1 vs Grok 4.20 (Non-Reasoning)

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

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

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

FAQ

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