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V4.5 Full MaintenancePlanned Maintenance

Description

We are planning to update the NovelAI Diffusion V4.5 Full deployment on Wednesday, November 4th, 2026 at 17:00 UTC. This upcoming version of V4.5 Full is aiming to bring faster generations for users. There is no quality degradation from our testing. We expect minor service disruption to V4.5 Full as this deployment happens. Please be aware that this update will affect how image seeds are replicated; as a result, seeds used after the update may not produce a 100% identical match to those generated on the current version. If you are currently working on a project that requires exact replication results from specific seeds, we encourage you to finalize those generations before the transition takes place. 【メンテナンスのお知らせ】 2026年11月4日（水）17:00（UTC）に、NovelAI Diffusion V4.5 Fullの稼働環境のアップデートを予定しております。 今回のアップデートは、V4.5 Fullの画像生成の高速化を目的としたものです。当社のテストでは、品質の低下は確認されておりません。アップデート作業中は、V4.5 Fullにおいて軽微なサービスの中断が発生する見込みです。 なお、本アップデートはシードの再現性に影響します。そのため、アップデート後に同じシードを使用しても、現行バージョンで生成された画像と完全には一致しない場合がございます。 特定のシードによる完全な再現が必要なプロジェクトを進行中の方は、移行前に該当する画像の生成を完了しておくことをおすすめいたします。


Components

Image Generation


Locations

Coreweave


Schedule

November 2, 2026 5:00PM - November 2, 2026 8:00PM UTC


November 4, 2026 5:15PM UTC
UPDATE

Maintenance has started. We will continue to work throughout the next couple of hours to roll out the update to our servers. As said before, expect minor service disruption (slower generations) as we progress.

November 4, 2026 7:47PM UTC
UPDATE

Maintenance is complete. Thank you for your patience during this maintenance period. We'll be keeping an eye on things and update you as needed! （機械翻訳）メンテナンスが完了しました。メンテナンス中はご不便をおかけしましたが、ご協力いただきありがとうございました。今後も状況を注視し、必要に応じてお知らせいたします！
Login issuesPartial Service Disruption

Incident Status

Partial Service Disruption


Components

Image Generation, Text Generation, Login, NovelAI Explore


Locations

Coreweave



November 2, 2026 5:31PM UTC
INVESTIGATING

We're aware of issues affecting the servers and are actively looking into the cause. We will keep you updated and thank you for your patience in the meantime.

November 2, 2026 5:33PM UTC
IDENTIFIED

This has been identified as an issue with our service provider, CoreWeave, and they are working to restore service as soon as possible. More information in https://status.coreweave.com/pages/incident/5e126e998f2f032e1f8f0f4b/6ae8c1842e972f05fd11fc90

November 2, 2026 7:40PM UTC
RESOLVED

The servers have stabilized and are operating normally again. Thank you for your understanding during the outage. We'll be keeping an eye on things and update you as needed! サーバーは復旧し、安定して再び通常通り稼動しております。復旧作業の間、ご理解いただきありがとうございました。今後も状況をモニターし、必要に応じて最新の状況をお知らせいたします。