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Gemini 3.8 Flash vs Kimi K2.6

For a typical chat reply (2,000 tokens in, 400 out), Gemini 3.8 Flash costs 1.1× as much as Kimi K2.6: $3.00 against $2.66 per 1,000 requests at list price on 2026-09-28.

Gemini 3.8 FlashKimi K2.6
Input, per 1M tokens$0.75$0.65
Output, per 1M tokens$3.75$3.41
Context window1.05M262K
Classification or routing (600 tokens in, 10 out), per 1,000$0.487$0.424
Chat reply (2,000 in, 400 out), per 1,000$3.00$2.66
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$7.88$6.91
Confidence signalnoyes
Tool callingyesyes
BANKING77, correct of 400331323

Which one should carry your traffic?

If Kimi K2.6 answers your requests as well as Gemini 3.8 Flash, moving that traffic saves 11% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Kimi K2.6 exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Gemini 3.8 Flash.

Gemini 3.8 Flash profile · Kimi K2.6 profile · Measure it on your traffic