Is Grok 4.20 (Reasoning) or Claude Haiku 4.5 cheaper?

Grok 4.20 (Reasoning) is cheaper on output tokens ($2.50 vs $5.00 per 1M).

Which has the larger context window, Grok 4.20 (Reasoning) or Claude Haiku 4.5?

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

Grok 4.20 (Reasoning) vs Claude Haiku 4.5

Grok 4.20 (Reasoning) is cheaper on output tokens, while Grok 4.20 (Reasoning) offers a larger context window. Choose Grok 4.20 (Reasoning) or Claude Haiku 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Grok 4.20 (Reasoning)	Claude Haiku 4.5
Provider	Merge Gateway	Merge Gateway
Input / 1M tokens	$1.25	$1.00
Output / 1M tokens	$2.50	$5.00
Context window	1M	200K
Parameters	—	—
Open weights	No	No
Released	Mar 2026	Oct 2025

Grok 4.20 (Reasoning) details →Claude Haiku 4.5 details →

FAQ

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