Is GPT-3.5 Turbo Instruct or GPT-5 cheaper?

GPT-3.5 Turbo Instruct is cheaper on output tokens ($2.00 vs $10.00 per 1M).

Which has the larger context window, GPT-3.5 Turbo Instruct or GPT-5?

GPT-5 has the larger context window (272K tokens).

GPT-3.5 Turbo Instruct vs GPT-5

GPT-3.5 Turbo Instruct is cheaper on output tokens, while GPT-5 offers a larger context window. Choose GPT-3.5 Turbo Instruct or GPT-5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	GPT-3.5 Turbo Instruct	GPT-5
Provider	Azure Cognitive Services	Azure Cognitive Services
Input / 1M tokens	$1.50	$1.25
Output / 1M tokens	$2.00	$10.00
Context window	4K	272K
Parameters	20B	—
Open weights	No	No
Released	Sep 2023	Aug 2025

GPT-3.5 Turbo Instruct details →GPT-5 details →

FAQ

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