Is GPT-4.1 (Fast) or o3-deep-research cheaper?

GPT-4.1 (Fast) is cheaper on output tokens ($14.00 vs $40.00 per 1M).

Which has the larger context window, GPT-4.1 (Fast) or o3-deep-research?

GPT-4.1 (Fast) has the larger context window (1M tokens).

GPT-4.1 (Fast) vs o3-deep-research

GPT-4.1 (Fast) is cheaper on output tokens, while GPT-4.1 (Fast) offers a larger context window. Choose GPT-4.1 (Fast) or o3-deep-research based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-4.1 (Fast)	o3-deep-research
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$3.50	$10.00
Output / 1M tokens	$14.00	$40.00
Context window	1M	200K
Parameters	—	—
Open weights	No	No
Released	Apr 2025	Jun 2025

GPT-4.1 (Fast) details →o3-deep-research details →

FAQ

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