Home / Compare / Claude Opus 5 vs Kimi K3

Claude Opus 5 vs Kimi K3

For a typical chat reply (2,000 tokens in, 400 out), Claude Opus 5 costs 1.7× as much as Kimi K3: $20.00 against $12.00 per 1,000 requests at list price on 2026-09-28.

Claude Opus 5Kimi K3
Input, per 1M tokens$5.00$3.00
Output, per 1M tokens$25.00$15.00
Context window1M1.05M
Classification or routing (600 tokens in, 10 out), per 1,000$3.25$1.95
Chat reply (2,000 in, 400 out), per 1,000$20.00$12.00
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$52.50$31.50
Confidence signalnoyes
Tool callingyesyes

Which one should carry your traffic?

If Kimi K3 answers your requests as well as Claude Opus 5, moving that traffic saves 40% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Kimi K3 exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Claude Opus 5.

Claude Opus 5 profile · Kimi K3 profile · Measure it on your traffic