Is Qwen 3.5 397B or Claude Opus 4.5 cheaper?

Qwen 3.5 397B is cheaper on output tokens ($4.50 vs $30.00 per 1M).

Which has the larger context window, Qwen 3.5 397B or Claude Opus 4.5?

Claude Opus 4.5 has the larger context window (198K tokens).

Qwen 3.5 397B vs Claude Opus 4.5

Qwen 3.5 397B is cheaper on output tokens, while Claude Opus 4.5 offers a larger context window. Choose Qwen 3.5 397B or Claude Opus 4.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Qwen 3.5 397B	Claude Opus 4.5
Provider	Venice AI	Venice AI
Input / 1M tokens	$0.75	$6.00
Output / 1M tokens	$4.50	$30.00
Context window	128K	198K
Parameters	—	—
Open weights	Yes	No
Released	Feb 2026	Dec 2025

Qwen 3.5 397B 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.