Is Mercury 2 or GPT-3.5 Turbo Instruct cheaper?

Mercury 2 is cheaper on output tokens ($0.75 vs $2.00 per 1M).

Which has the larger context window, Mercury 2 or GPT-3.5 Turbo Instruct?

Mercury 2 has the larger context window (128K tokens).

Mercury 2 vs GPT-3.5 Turbo Instruct

Mercury 2 is cheaper on output tokens, while Mercury 2 offers a larger context window. Choose Mercury 2 or GPT-3.5 Turbo Instruct based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Mercury 2	GPT-3.5 Turbo Instruct
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$0.25	$1.50
Output / 1M tokens	$0.75	$2.00
Context window	128K	8K
Parameters	—	20B
Open weights	No	No
Released	Feb 2026	Sep 2023

Mercury 2 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.