Looking back · SecondSource deep dive, August 7

Few Kimi K3 hosts undercut Moonshot; the cause is unsettled

Can an open-weight model's license stop third parties from undercutting on price? SecondSource's early-August reading: 8 of Kimi K3's 12 serving endpoints matched Moonshot's official pricing. Kimi K3 is the flagship open-weight model of Moonshot, a Chinese AI lab that also sells access to the model through its own official API. In early August SecondSource pulled all 12 Kimi K3 serving endpoints from the API of OpenRouter, a model-routing platform that lists each provider's endpoints and prices for the same model side by side. Eight matched Moonshot's official price. Three were speed tiers priced 50% to 72% above it. Only Morph, a small provider, came in 11% below. For the previous generation, K2, third parties such as the inference provider DeepInfra priced 12% to 33% below the official rate (August 7 deep dive). SecondSource's reading at the time: the license threshold set a price floor under Moonshot's official API. Apart from Morph, third parties didn't price below the official rate. The cause can't be settled. US hosting providers may simply be selling data that stays in the country and never compete on price. No party has disclosed the license fees paid to Moonshot. The judgment card's verdict date is November 5, and the threshold is SecondSource's own: if any third party on OpenRouter prices 12% or more below the official rate that day, the floor reading weakens (judgment card). How we checked →

Concept illustration: a row of open laptops sits on a long shelf, each screen showing a grey speech bubble with grey lines, and a plain red tag hangs on a cord beneath each laptop; the second tag is smaller than the others, and the row runs off the right edge. The first two laptops are drawn with heavier outlines in front of a pale pink circle and carry signs on posts lettered "MOONSHOT KIMI K3" (beside a black round emblem) and "MORPH" (beside a blue-green M-shaped emblem), while a larger sign at upper right is lettered "OPENROUTER" beside a black branching-arrow symbol.

Source and checks

This item ran in the brief of Oct 25, 2026, alongside 8 other items. How we checked it, the quote checks and what was still missing that day are on that issue's How we checked page.

Cite this item

SecondSource (2026). "Few Kimi K3 hosts undercut Moonshot; the cause is unsettled." https://secondsource.io/en/news/2026-10-25-3/. Accessed access date.