Is o3 or GPT-3.5 Turbo Instruct cheaper?

GPT-3.5 Turbo Instruct is cheaper on output tokens ($2.00 vs $8.00 per 1M).

Which has the larger context window, o3 or GPT-3.5 Turbo Instruct?

o3 has the larger context window (200K tokens).

o3 vs GPT-3.5 Turbo Instruct

GPT-3.5 Turbo Instruct is cheaper on output tokens, while o3 offers a larger context window. Choose o3 or GPT-3.5 Turbo Instruct based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	o3	GPT-3.5 Turbo Instruct
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$2.00	$1.50
Output / 1M tokens	$8.00	$2.00
Context window	200K	8K
Parameters	—	20B
Open weights	No	No
Released	Apr 2025	Sep 2023

o3 details →GPT-3.5 Turbo Instruct details →

FAQ

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