Is DeepSeek V4 Flash or Claude Opus 4.5 cheaper?

DeepSeek V4 Flash is cheaper on output tokens ($0.28 vs $30.00 per 1M).

Which has the larger context window, DeepSeek V4 Flash or Claude Opus 4.5?

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

DeepSeek V4 Flash vs Claude Opus 4.5

DeepSeek V4 Flash is cheaper on output tokens, while DeepSeek V4 Flash offers a larger context window. Choose DeepSeek V4 Flash or Claude Opus 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	DeepSeek V4 Flash	Claude Opus 4.5
Provider	Venice AI	Venice AI
Input / 1M tokens	$0.14	$6.00
Output / 1M tokens	$0.28	$30.00
Context window	1M	198K
Parameters	284B	—
Open weights	Yes	No
Released	Apr 2026	Dec 2025

DeepSeek V4 Flash details →Claude Opus 4.5 details →

FAQ

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