Is DeepSeek V4 Flash or GPT-5.4 cheaper?

DeepSeek V4 Flash is cheaper on output tokens ($0.37 vs $22.50 per 1M).

Which has the larger context window, DeepSeek V4 Flash or GPT-5.4?

GPT-5.4 has the larger context window (1.1M tokens).

DeepSeek V4 Flash vs GPT-5.4

DeepSeek V4 Flash is cheaper on output tokens, while GPT-5.4 offers a larger context window. Choose DeepSeek V4 Flash or GPT-5.4 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	DeepSeek V4 Flash	GPT-5.4
Provider	OrcaRouter	OrcaRouter
Input / 1M tokens	$0.19	$5.00
Output / 1M tokens	$0.37	$22.50
Context window	1M	1.1M
Parameters	284B	—
Open weights	Yes	No
Released	Apr 2026	Mar 2026

DeepSeek V4 Flash details →GPT-5.4 details →

FAQ

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