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Kimi K3 vs Qwen3.8 Flash

For a typical chat reply (2,000 tokens in, 400 out), Kimi K3 costs 25× as much as Qwen3.8 Flash: $12.00 against $0.488 per 1,000 requests at list price on 2026-09-28.

Kimi K3Qwen3.8 Flash
Input, per 1M tokens$3.00$0.15
Output, per 1M tokens$15.00$0.47
Context window1.05M1M
Classification or routing (600 tokens in, 10 out), per 1,000$1.95$0.0947
Chat reply (2,000 in, 400 out), per 1,000$12.00$0.488
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$31.50$1.44
Confidence signalyesyes
Tool callingyesyes
BANKING77, correct of 400not measured316

Which one should carry your traffic?

If Qwen3.8 Flash answers your requests as well as Kimi K3, moving that traffic saves 96% 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 Kimi K3.

Kimi K3 profile · Qwen3.8 Flash profile · Measure it on your traffic