Is DeepSeek V3 or OpenAI GPT-5 Mini cheaper?

DeepSeek V3 is cheaper on output tokens ($1.68 vs $2.00 per 1M).

Which has the larger context window, DeepSeek V3 or OpenAI GPT-5 Mini?

OpenAI GPT-5 Mini has the larger context window (400K tokens).

DeepSeek V3 vs OpenAI GPT-5 Mini

DeepSeek V3 is cheaper on output tokens, while OpenAI GPT-5 Mini offers a larger context window. Choose DeepSeek V3 or OpenAI GPT-5 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	DeepSeek V3	OpenAI GPT-5 Mini
Provider	Helicone	Helicone
Input / 1M tokens	$0.56	$0.25
Output / 1M tokens	$1.68	$2.00
Context window	128K	400K
Parameters	671B	—
Open weights	No	No
Released	Dec 2024	Jan 2025

DeepSeek V3 details →OpenAI GPT-5 Mini details →

FAQ

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