Is GPT-5.4 Nano (Azure) or DeepSeek V4 Flash (reka-ai) cheaper?

DeepSeek V4 Flash (reka-ai) is cheaper on output tokens ($0.66 vs $1.25 per 1M).

Which has the larger context window, GPT-5.4 Nano (Azure) or DeepSeek V4 Flash (reka-ai)?

GPT-5.4 Nano (Azure) has the larger context window (400K tokens).

GPT-5.4 Nano (Azure) vs DeepSeek V4 Flash (reka-ai)

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

Spec	GPT-5.4 Nano (Azure)	DeepSeek V4 Flash (reka-ai)
Provider	LLM Gateway	LLM Gateway
Input / 1M tokens	$0.20	$0.11
Output / 1M tokens	$1.25	$0.66
Context window	400K	262K
Parameters	—	—
Open weights	No	Yes
Released	Mar 2026	Apr 2026

GPT-5.4 Nano (Azure) details →DeepSeek V4 Flash (reka-ai) details →

FAQ

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