Is DeepSeek V4 Pro or GPT-3.5 Turbo Instruct cheaper?

DeepSeek V4 Pro is cheaper on output tokens ($0.87 vs $2.00 per 1M).

Which has the larger context window, DeepSeek V4 Pro or GPT-3.5 Turbo Instruct?

DeepSeek V4 Pro has the larger context window (1M tokens).

DeepSeek V4 Pro vs GPT-3.5 Turbo Instruct

DeepSeek V4 Pro is cheaper on output tokens, while DeepSeek V4 Pro offers a larger context window. Choose DeepSeek V4 Pro or GPT-3.5 Turbo Instruct based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	DeepSeek V4 Pro	GPT-3.5 Turbo Instruct
Provider	Vercel AI Gateway	Vercel AI Gateway
Input / 1M tokens	$0.44	$1.50
Output / 1M tokens	$0.87	$2.00
Context window	1M	8K
Parameters	1.6T	20B
Open weights	Yes	No
Released	Apr 2026	Sep 2023

DeepSeek V4 Pro 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.