{"id":"INC-github-6jm5k16vyhfg","kind":"incident","aliases":[],"related":[],"title":"GitHub: Degraded availability for GPT-5.3 Codex and GPT-5.6 models in Copilot","description":"We are experiencing degraded availability for GPT-5.3 Codex, GPT-5.6 Luna, and GPT-5.6 Sol in Copilot products and IDE surfaces due to an issue with an upstream model provider. We recommend choosing another model or selecting Auto to continue using Copilot until the issue is resolved.","summary":null,"severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"GitHub","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["ci","git","github","incident","ops","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-09T23:16:32+00:00","first_seen_at":"2026-11-09T23:18:21+00:00","triaged_at":"2026-11-09T23:19:00+00:00","updated_at":"2026-11-09T23:22:59+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'-5.3':6A,32C '-5.6':10A,35C,39C '6jm5k16vyhfg':17A 'anoth':59C 'auto':63C 'avail':3A,29C 'choos':58C 'ci':19B 'codex':7A,33C 'continu':65C 'copilot':13A,42C,67C 'degrad':2A,28C 'due':47C 'experienc':27C 'git':20B 'github':1A,16A,18A,21B 'gpt':5A,9A,31C,34C,38C 'ide':45C 'inc':15A 'inc-github-6jm5k16vyhfg':14A 'incid':22B 'issu':50C,70C 'luna':36C 'model':11A,54C,60C 'op':23B 'product':43C 'provid':55C 'recommend':57C 'resolv':72C 'select':62C 'sol':40C 'surfac':46C 'upstream':53C 'use':66C 'vendor':24B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":null,"audience":null,"plain_action":null,"pkeys":["github"],"ptokens":["github"],"labels":["ci","git","github","high","incident","ops","vendor"],"campaign_type":null,"search_a":"'-5.3':6A '-5.6':10A '6jm5k16vyhfg':17A 'avail':3A 'codex':7A 'copilot':13A 'degrad':2A 'github':1A,16A,18A 'gpt':5A,9A 'inc':15A 'inc-github-6jm5k16vyhfg':14A 'model':11A","search_b":"'ci':19B 'git':20B 'github':21B 'incid':22B 'op':23B 'vendor':24B","search_c":"'-5.3':32C '-5.6':35C,39C 'anoth':59C 'auto':63C 'avail':29C 'choos':58C 'codex':33C 'continu':65C 'copilot':42C,67C 'degrad':28C 'due':47C 'experienc':27C 'gpt':31C,34C,38C 'ide':45C 'issu':50C,70C 'luna':36C 'model':54C,60C 'product':43C 'provid':55C 'recommend':57C 'resolv':72C 'select':62C 'sol':40C 'surfac':46C 'upstream':53C 'use':66C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-09T23:16:32+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"github:6jm5k16vyhfg","url":"https://stspg.io/t5gqmprtrdf2","severity":"high","published_at":"2026-11-09T23:16:32+00:00","modified_at":"2026-11-09T23:59:44+00:00","first_seen_at":"2026-11-09T23:18:21+00:00","fetched_at":"2026-11-10T00:02:44+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}