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Kimi K3 vs GLM 5.3

For a typical chat reply (2,000 tokens in, 400 out), Kimi K3 costs 5.0× as much as GLM 5.3: $12.00 against $2.41 per 1,000 requests at list price on 2026-09-28.

Kimi K3GLM 5.3
Input, per 1M tokens$3.00$0.325
Output, per 1M tokens$15.00$4.40
Context window1.05M1.31M
Classification or routing (600 tokens in, 10 out), per 1,000$1.95$0.239
Chat reply (2,000 in, 400 out), per 1,000$12.00$2.41
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$31.50$4.80
Confidence signalyesyes
Tool callingyesyes

Which one should carry your traffic?

If GLM 5.3 answers your requests as well as Kimi K3, moving that traffic saves 80% on chat-shaped requests. Averages cannot tell you whether it does for your requests. GLM 5.3 exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Kimi K3.

Kimi K3 profile · GLM 5.3 profile · Measure it on your traffic