Home / Compare / Claude Sonnet 5 vs Qwen3.8 Flash

Claude Sonnet 5 vs Qwen3.8 Flash

For a typical chat reply (2,000 tokens in, 400 out), Claude Sonnet 5 costs 16× as much as Qwen3.8 Flash: $8.00 against $0.488 per 1,000 requests at list price on 2026-09-28.

Claude Sonnet 5Qwen3.8 Flash
Input, per 1M tokens$2.00$0.15
Output, per 1M tokens$10.00$0.47
Context window1M1M
Classification or routing (600 tokens in, 10 out), per 1,000$1.30$0.0947
Chat reply (2,000 in, 400 out), per 1,000$8.00$0.488
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$21.00$1.44
Confidence signalnoyes
Tool callingyesyes
BANKING77, correct of 400308316

Which one should carry your traffic?

If Qwen3.8 Flash answers your requests as well as Claude Sonnet 5, moving that traffic saves 94% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Qwen3.8 Flash exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Claude Sonnet 5.

Claude Sonnet 5 profile · Qwen3.8 Flash profile · Measure it on your traffic