Home / Compare / Kimi K3 vs GPT-5.6 Terra

Kimi K3 vs GPT-5.6 Terra

For a typical chat reply (2,000 tokens in, 400 out), Kimi K3 costs 1.4× as much as GPT-5.6 Terra: $12.00 against $8.80 per 1,000 requests at list price on 2026-09-28.

Kimi K3GPT-5.6 Terra
Input, per 1M tokens$3.00$2.00
Output, per 1M tokens$15.00$12.00
Context window1.05M1.05M
Classification or routing (600 tokens in, 10 out), per 1,000$1.95$1.32
Chat reply (2,000 in, 400 out), per 1,000$12.00$8.80
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$31.50$22.00
Confidence signalyesno
Tool callingyesyes

Which one should carry your traffic?

If GPT-5.6 Terra answers your requests as well as Kimi K3, moving that traffic saves 27% on chat-shaped requests. Averages cannot tell you whether it does for your requests. GPT-5.6 Terra does not expose a confidence signal through OpenRouter, so Gimbix would test it as a full replacement rather than a first answer.

Kimi K3 profile · GPT-5.6 Terra profile · Measure it on your traffic