Is GPT-5 cheaper than GPT-5 nano?

GPT-5 nano is cheaper, at $0.15 per 1M input tokens versus $10.00.

Which has the larger context window, GPT-5 or GPT-5 nano?

GPT-5 has the larger context window at 256K tokens.

GPT-5 nano is cheaper on input ($0.15 vs $10.00 per 1M tokens), GPT-5 has the larger context window (256K).

Spec	GPT-5	GPT-5 nano
Provider	OpenAI	OpenAI
Modality	Text + Vision	Text
Context window	256Kbest	128K
Input / 1M	$10.00	$0.15best
Output / 1M	$30.00	$0.60best
Released	Dec 2025	Jan 2026
Best for	Chat / Assistant, Code generation, Image / Vision	High-volume / cheap, Chat / Assistant

Is GPT-5 cheaper than GPT-5 nano?: GPT-5 nano is cheaper, at $0.15 per 1M input tokens versus $10.00.
Which has the larger context window, GPT-5 or GPT-5 nano?: GPT-5 has the larger context window at 256K tokens.