Degraded output of Kimi K2.6 in all variants. Most of the time unable to get a response.

A Kagi Assistant user reported that Kimi K2.6 returns "Upstream provider is unavailable, please try again later." on nearly every query in both its reasoning and non-reasoning variants, with the issue first appearing around 3-4 days before the report and the last typical response logged on 2026-05-16. The user said the failures are independent of the web search setting, that Kimi K2.5 is unaffected, and that a similar issue was previously filed on kagifeedback.org tagged as an appearance bug.

Experienced issues while using Kimi K2.6 in both reasoning and non-reasoning versions. Query often ends up as "Upstream provider is unavailable, please try again later.". Nearly every query is affected in my case. Issue also doesn't seem to depend on web search setting. First time I've encountered this issue around 3-4 days ago. Last typical response from Kimi K2.6 in my case was 2026-05-16, but while writing this report I somehow managed to get two proper ones: this with thinking block formatting issue https://kagi.com/assistant/3db2531c-4549-42c4-ae6d-b08dfd25b317 and this https://kagi.com/assistant/aba6eb50-c4eb-4b85-9fd3-5e44b6674481 . Example affected assistant threads: here https://kagi.com/assistant/afc4ac64-74c4-4c2e-8118-3e8bd794476f and here https://kagi.com/assistant/14f87194-870a-42f3-a71f-88b2ca6eec4f . Similar issue was reported here https://kagifeedback.org/d/10623-weird-output-when-submitting-assistant-request-to-kimi but tagged as appearance bug. I've never had similar issues while interacting with these models on other platforms. Also Kimi K2.5 seems to not be affected at all. Please review the case and try to resolve degraded output issue.