Is Qwen3.5-397B-A17B-fast or Qwen3.5-397B-A17B cheaper?

Qwen3.5-397B-A17B-fast and Qwen3.5-397B-A17B have comparable output pricing.

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

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

Qwen3.5-397B-A17B-fast vs Qwen3.5-397B-A17B

Both have similar output pricing, while Qwen3.5-397B-A17B offers a larger context window. Choose Qwen3.5-397B-A17B-fast or Qwen3.5-397B-A17B based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Qwen3.5-397B-A17B-fast	Qwen3.5-397B-A17B
Provider	Nebius Token Factory	Nebius Token Factory
Input / 1M tokens	$0.60	$0.60
Output / 1M tokens	$3.60	$3.60
Context window	8K	262K
Parameters	—	397B
Open weights	Yes	Yes
Released	Jul 2025	Jul 2025

Qwen3.5-397B-A17B-fast details →Qwen3.5-397B-A17B details →

FAQ

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