Is Qwen3.5 397B-A17B or DeepSeek-V3.1 cheaper?

DeepSeek-V3.1 is cheaper on output tokens ($0.71 vs $2.65 per 1M).

Which has the larger context window, Qwen3.5 397B-A17B or DeepSeek-V3.1?

Qwen3.5 397B-A17B has the larger context window (262K tokens).

Qwen3.5 397B-A17B vs DeepSeek-V3.1

DeepSeek-V3.1 is cheaper on output tokens, while Qwen3.5 397B-A17B offers a larger context window. Choose Qwen3.5 397B-A17B or DeepSeek-V3.1 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Qwen3.5 397B-A17B	DeepSeek-V3.1
Provider	TokenGo	TokenGo
Input / 1M tokens	$0.40	$0.19
Output / 1M tokens	$2.65	$0.71
Context window	262K	131K
Parameters	—	—
Open weights	Yes	Yes
Released	Feb 2026	Aug 2025

Qwen3.5 397B-A17B details →DeepSeek-V3.1 details →

FAQ

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