GitHub · Developer toolsOct 1, 2025, 16:43 UTC

Degraded Gemini 2.5 Pro experience in Copilot

MinorDependencyUpdated 16h ago

Oct 1, 16:43 UTCOct 2, 22:33 UTC

Duration

29h 50m

Impact

Minor

Root cause

Dependency

GitHub, 90 days

68 incidents

Affected

Not listed by the vendor.

Status page

Final update

Between October 1st, 2025 at 1 AM UTC and October 2nd, 2025 at 10:33 PM UTC, the Copilot service experienced a degradation of the Gemini 2.5 Pro model due to an issue with our upstream provider. Before 15:53 UTC on October 1st, users experienced higher error rates with large context requests while using Gemini 2.5 Pro. After 15:53 UTC and until 10:33 PM UTC on October 2nd, requests were restricted to smaller context windows when using Gemini 2.5. Pro. No other models were impacted. The issue was resolved by a mitigation put in place by our provider. GitHub is collaborating with our provider to enhance communication and improve the ability to reproduce issues with the aim to reduce resolution time.

Timeline

Resolved · Oct 2, 22:33 UTC
Between October 1st, 2025 at 1 AM UTC and October 2nd, 2025 at 10:33 PM UTC, the Copilot service experienced a degradation of the Gemini 2.5 Pro model due to an issue with our upstream provider. Before 15:53 UTC on October 1st, users experienced higher error rates with large context requests while using Gemini 2.5 Pro. After 15:53 UTC and until 10:33 PM UTC on October 2nd, requests were restricted to smaller context windows when using Gemini 2.5. Pro. No other models were impacted. The issue was resolved by a mitigation put in place by our provider. GitHub is collaborating with our provider to enhance communication and improve the ability to reproduce issues with the aim to reduce resolution time.

More from GitHub

Full history

Started	Incident	Impact	Duration
Sep 2310:11 UTC	Incident across several services	minor	Ongoing
Sep 2022:13 UTC	Incident with Pull Requests	minor	1h 9m
Sep 1720:59 UTC	Elevated rate of errors for OpenAI models provided by Copilot	minor	50m
Sep 1607:20 UTC	Degradation with Gemini 3.8 Flash	major	10h 28m
Sep 1519:11 UTC	Disruption with some GitHub services	minor	49m
Sep 1509:47 UTC	Disruption with some GitHub services	minor	1h 30m

Also caused by third-party dependency

All

Started	Vendor	Incident	Impact	Duration
Sep 1609:48 UTC	DigitalOcean	Support Portal Service DisruptionDigitalOcean	minor	11h 21m
Sep 1608:31 UTC	Cloudflare	Support Helpdesk Availability IssuesCloudflare	minor	6h 27m
Sep 417:03 UTC	Grafana Labs	Degradation of Hosted Grafana in US Central RegionGrafana Labs	major	3h 39m
Sep 416:05 UTC	Expo	Elevated Linux worker queue timesExpo	major	15h 4m
Sep 115:25 UTC	Grafana Labs	Investigating issues in US Central (prod-us-central-0, prod-us-central-5)Grafana Labs	minor	4h 54m
Aug 3106:26 UTC	Fly.io	Packet loss in ORDFly.io	minor	1h 44m

From vendors' own status pages and disclosures. Times as reported. Logos via logo.dev; trademarks belong to their owners.