Is OpenAI GPT-4.1 Nano or OpenAI GPT-5 Nano cheaper?

OpenAI GPT-4.1 Nano and OpenAI GPT-5 Nano have comparable output pricing.

Which has the larger context window, OpenAI GPT-4.1 Nano or OpenAI GPT-5 Nano?

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

OpenAI GPT-4.1 Nano vs OpenAI GPT-5 Nano

Both have similar output pricing, while OpenAI GPT-4.1 Nano offers a larger context window. Choose OpenAI GPT-4.1 Nano or OpenAI GPT-5 Nano based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	OpenAI GPT-4.1 Nano	OpenAI GPT-5 Nano
Provider	Helicone	Helicone
Input / 1M tokens	$0.10	$0.05
Output / 1M tokens	$0.40	$0.40
Context window	1M	400K
Parameters	—	—
Open weights	No	No
Released	Apr 2025	Jan 2025

OpenAI GPT-4.1 Nano details →OpenAI GPT-5 Nano details →

FAQ

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