Was DeepSeek down on November 3, 2026? Chat and API outage resolved

Updated November 3, 2026, after the incident was resolved. Yes. DeepSeek's official incident record reports a partial web and API outage from 08:58 to 10:48 UTC, approximately 1 hour 49 minutes. The affected components listed there include Chat Service, DeepSeek V4 Pro API and DeepSeek V4.1 Flash API. The company marked the incident resolved and said service had been restored. “Partial” does not mean every request failed for the entire window.

Editorial illustration created for this article; it is not a screenshot of DeepSeek service.

Source: DeepSeek's official incident page, captured November 3, 2026. The screenshot uses Asia/Taipei time, UTC+8.

What happened to the DeepSeek API and chat?

DeepSeek initially reported that it was investigating the partial interruption. Later updates said a fix had been implemented and its results were being monitored. The final update at 10:48 UTC marked the incident Resolved. The component timelines show changes in severity during monitoring, so describing the entire period as a complete, uninterrupted shutdown would overstate the record.

For the latest state, check DeepSeek's live status page and incident history. A “server busy” message may accompany a service problem, but it does not by itself establish the cause of a failure in your application.

Will DeepSeek compensate users for the November 3 outage?

We found no official compensation announcement for November 3 as of this update. There is a separate precedent: after an outage on October 15, DeepSeek announced API credit equal to each account's spending from October 8 through 14, credited automatically and used first for later API charges. The announcement was reported by Beijing Daily; DeepSeek's October 15 incident record confirms an outage lasting about 4 hours 52 minutes.

That earlier decision does not establish a compensation policy for future incidents. API customers should watch official platform notices and account balances. Users of the free chat service should not assume that an API spending credit applies to their accounts.

What should an API developer do after an outage?

1. Record the failure safely. Keep the timestamp, route, model ID, HTTP status and request identifier. Do not log API keys or sensitive prompts.
2. Separate upstream failures from local issues. Compare your monitoring with the official incident. A 401 for an invalid key or a 402 for insufficient balance will not be solved by retrying after an outage.
3. Bound retries. Apply timeouts and backoff to transient failures, with a clear maximum. Unbounded retries can increase queue length, cost and latency.
4. Test an alternative model before you need it. Compare output quality, tool support, limits and cost on your own workload. Changing a model ID does not guarantee identical behavior; avoid duplicating actions that have external side effects.

Can a multi-model API prevent this kind of interruption?

A multi-model gateway can make it easier to select another provider, but it cannot repair DeepSeek's infrastructure. Requests that still depend on the same DeepSeek upstream may fail together. Resilience requires a tested alternative provider, explicit switch criteria and application-level monitoring.

MandAPI offers a multi-provider model catalog and prices shown in Brazilian reais for planning that second route. Its public catalog, checked November 3, 2026, listed deepseek-v4.1-flash-1017; a catalog's “operational” label is not a promise that the upstream will never have an incident. Read the OpenAI-compatible API guide and compare models in Pricing.

FAQ

Is DeepSeek still down?

The November 3 incident is marked resolved. Check the live status page for subsequent events and test your own API route before restoring production traffic.

Were the API and chat both affected?

Yes. The official record lists Chat Service, V4 Pro API and V4.1 Flash API among components affected by a partial outage.

Will DeepSeek refund another seven days of API usage?

No such November 3 measure has been confirmed. The seven-day credit was announced for the October 15 outage.

Sources: official November 3 incident; official history; official October 15 incident; Beijing Daily's report of the October credit; MandAPI catalog, checked November 3, 2026.