Is Grok 4.1 Fast (Non-Reasoning) or GPT-5.4 cheaper?

Grok 4.1 Fast (Non-Reasoning) is cheaper on output tokens ($0.50 vs $15.00 per 1M).

Which has the larger context window, Grok 4.1 Fast (Non-Reasoning) or GPT-5.4?

Grok 4.1 Fast (Non-Reasoning) has the larger context window (2M tokens).

Grok 4.1 Fast (Non-Reasoning) vs GPT-5.4

Grok 4.1 Fast (Non-Reasoning) is cheaper on output tokens, while Grok 4.1 Fast (Non-Reasoning) offers a larger context window. Choose Grok 4.1 Fast (Non-Reasoning) or GPT-5.4 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Grok 4.1 Fast (Non-Reasoning)	GPT-5.4
Provider	Perplexity Agent	Perplexity Agent
Input / 1M tokens	$0.20	$2.50
Output / 1M tokens	$0.50	$15.00
Context window	2M	1.1M
Parameters	—	—
Open weights	No	No
Released	Nov 2025	Mar 2026

Grok 4.1 Fast (Non-Reasoning) details →GPT-5.4 details →

FAQ

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