Home / Compare / Claude Opus 5 vs Qwen3.8 27B

Claude Opus 5 vs Qwen3.8 27B

For a typical chat reply (2,000 tokens in, 400 out), Claude Opus 5 costs 9.8× as much as Qwen3.8 27B: $20.00 against $2.04 per 1,000 requests at list price on 2026-09-28.

Claude Opus 5Qwen3.8 27B
Input, per 1M tokens$5.00$0.42
Output, per 1M tokens$25.00$3.00
Context window1M1M
Classification or routing (600 tokens in, 10 out), per 1,000$3.25$0.282
Chat reply (2,000 in, 400 out), per 1,000$20.00$2.04
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$52.50$4.86
Confidence signalnoyes
Tool callingyesyes
BANKING77, correct of 400not measured264

Which one should carry your traffic?

If Qwen3.8 27B answers your requests as well as Claude Opus 5, moving that traffic saves 90% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Qwen3.8 27B exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Claude Opus 5.

Claude Opus 5 profile · Qwen3.8 27B profile · Measure it on your traffic