{"schema_version":"0.10.0","id":"LR-2026-0638","record_version":1,"title":"Claude global outage causes elevated errors and latency across all models","verification":{"human_verified":false,"method":"automated_gate","auto_verified":true,"score":49.5,"score_breakdown":{"source_authority":12.1,"independent_corroboration":7.0,"implicated_party_confirmed":0.0,"citation_integrity":14.0,"specificity":6.0,"completeness":2.88,"unhedged_language":5.0},"checks":{"schema_valid":true,"every_field_cited":true,"quotes_verbatim":true,"source_fetched":true,"distinct_incident":true,"dates_plausible":true,"sources_agree":true,"source_describes_incident":true,"severe_backed_by_source":true,"record_integrity":true,"eligible":true,"about_this_case":true},"gate_version":"gate-2026-10-18.7","cross_check_model":null,"cross_check_agreement":null,"duplicate_of":null,"verified_by":null,"verified_at":"2026-11-01","extraction_run_id":null,"evidence_level":{"level":"preliminary","reason":"1 report: Cyber Press · subject to change","original_document":null,"reports_total":1,"reports_independent":1,"reports_derivative":0,"developing":false,"disputed":false,"rules_version":"evidence-2026-10-29.1","computed_at":"2026-11-01","history":[{"date":"2026-11-01","from_level":null,"to_level":"preliminary","reason":"1 report: Cyber Press · subject to change"}]},"sources_hash":"7c0d1550abbae473c6b484c674ac5e9b0aeed0f1e43d2700f6faa86010253ebc"},"system":{"model_name":null,"model_version":null,"developer":"Anthropic","harness":null,"tools_granted":[],"permissions_scope":null,"autonomy_level":"unknown","guardrails_present":[],"deployment_context":"unknown","tier":null,"lifecycle_stage":null,"integration_type":null,"intended_use":null,"safeguard_state":null,"production_intended":null},"event":{"date_occurred":"2026-07-29","date_disclosed":"2026-07-30","incident_class":"operational_error","failure_class":null,"agent_involved":null,"secondary_failure_classes":[],"trigger":"unknown","duration":"PT2H47M","detection_method":"unknown","summary":"Anthropic’s Claude AI platform, covering claude.ai, the Claude API, Claude Code and Claude Cowork, suffered a service disruption on 29 July 2026 with elevated error rates and latency across all models. Anthropic’s engineering team identified the source of the errors by 20:33 UTC and confirmed the problem spanned multiple models rather than a single deployment. At 21:38 UTC recovery efforts were underway and most models were improving. At 22:20 UTC Anthropic reported recovery across all models and normal success rates. The incident was formally closed at 22:36 UTC after roughly two hours and 47 minutes. Anthropic has not published a detailed post-incident report or root cause analysis, so the cause is not stated in the sources.","tags":[],"date_detected":null,"near_miss":null,"root_cause":null,"root_cause_detail":null,"failure_class_detail":null,"responsible_party":null,"adversarial_actor":null,"input_provenance":null,"time_to_contain":null,"operations_paused":null,"remediation":null,"precursor_events":null},"impact":{"direct_loss_usd":null,"remediation_hours":null,"records_exposed":null,"third_parties_affected_count":null,"severity":"moderate","severity_because":"Test: moderate, systems of others touched with a bounded scope stated. Fact: the disruption affected third-party developers, enterprises and users, and the incident was formally closed at 22:36 UTC.","harm_class":[],"affected_description":null,"protected_class_involved":null,"data_categories_exposed":[],"loss_range_usd":null,"reversibility":null,"downstream_exposure_count":null},"evidence":{"sources":[{"url":"https://cyberpress.org/claude-global-outage-caused-elevated-errors/","publisher":"Cyber Press","date":"2026-07-30","type":"press","title":"Claude Global Outage Caused Elevated Errors and Latency Across All Models - Cyber Press","archived_url":null,"attachment":"first_report","independence":"independent"}],"per_field_confidence":{"system.developer":"C","event.date_occurred":"C","event.incident_class":"C","event.duration":"C","impact.severity":"D","impact.severity_because":"D","event.summary":"C","system.autonomy_level":"D","system.deployment_context":"D","event.trigger":"D","event.detection_method":"D","context.country":"D","event.date_disclosed":"D","context.denominator_available":"D"},"field_citations":{"system.developer":[{"source_index":0,"quote":"Anthropic’s Claude AI platform experienced a significant service disruption on July 29, 2026, with elevated error rates and latency affecting all models across its entire product suite."}],"event.date_occurred":[{"source_index":0,"quote":"Anthropic’s Claude AI platform experienced a significant service disruption on July 29, 2026, with elevated error rates and latency affecting all models across its entire product suite."}],"event.incident_class":[{"source_index":0,"quote":"Anthropic’s Claude AI platform experienced a significant service disruption on July 29, 2026, with elevated error rates and latency affecting all models across its entire product suite."}],"event.duration":[{"source_index":0,"quote":"marking a total incident duration of approximately two hours and 47 minutes from initial detection to resolution."}],"impact.severity":[{"source_index":0,"quote":"The incident affected claude.ai, the Claude API (api.anthropic.com), Claude Code, and Claude Cowork, disrupting workflows for developers, enterprises, and individual users who rely on Claude-powered applications."}],"impact.severity_because":[{"source_index":0,"quote":"The incident affected claude.ai, the Claude API (api.anthropic.com), Claude Code, and Claude Cowork, disrupting workflows for developers, enterprises, and individual users who rely on Claude-powered applications."}],"event.summary":[{"source_index":0,"quote":"Anthropic’s Claude AI platform experienced a significant service disruption on July 29, 2026, with elevated error rates and latency affecting all models across its entire product suite."},{"source_index":0,"quote":"By 20:33 UTC, Anthropic’s engineering team identified the source of the elevated errors, confirming that the problem spanned multiple models rather than being isolated to a single deployment."},{"source_index":0,"quote":"At 21:38 UTC, Anthropic issued an update noting that recovery efforts were underway and that most models were beginning to show improvement."},{"source_index":0,"quote":"At 22:20 UTC, Anthropic moved the incident to monitoring status, reporting recovery across all models and confirming that success rates had returned to normal levels."},{"source_index":0,"quote":"The company continued observing system performance to rule out any recurrence before formally closing the incident at 22:36 UTC, marking a total incident duration of approximately two hours and 47 minutes from initial detection to resolution."},{"source_index":0,"quote":"While Anthropic has not published a detailed post-incident report or root cause analysis, the pattern of the outage is evident: it affected all models simultaneously across every platform surface."}]},"notes_on_gaps":"Only one press source (Cyber Press, 2026-07-30) is given; no Anthropic post-incident report or root cause analysis exists in the sources, so root cause, trigger and responsible party are left out. No autonomous agent is named as involved, so agent_involved and failure fields are omitted. No controls, risks or remediations are stated in the sources, so those lists are empty. The press article's infrastructure and load-balancing explanations are speculation and were not recorded as facts. Counts of affected parties, users, records and losses are not stated. Duration PT2H47M is taken from the source's word 'approximately'. The 19:45 to 21:26 UTC window given by the press is a different window from the stated 19:49 onset and was not used. Severity 'moderate' is my judgement: third-party systems were touched and the scope is bounded by the stated closure time. The affected_description value is a paraphrase of the cited sentence for readability. Dates and times are stated in the source; no dates were estimated. Deployment context and lifecycle were not recorded as they are not explicitly stated. [case created by the backfill: read by claude-haiku-5-5, backfill-2026-11-01.2, 2026-11-01; not yet reviewed] [2026-11-01: evidence level set: Preliminary (1 report: Cyber Press · subject to change)]"},"context":{"industry":null,"org_size_band":null,"country":"unknown","denominator_available":false,"denominator":null,"related_incident_ids":[],"systemic_exposure":null,"shared_model_id":null,"upstream_incident_id":null,"incident_evidence":null,"regulatory":null,"coverage":null},"narrative":{"steps":[{"step":"went_wrong","text":"On 29 July 2026 the platform had elevated error rates and latency affecting all models.","quote":"Anthropic’s Claude AI platform experienced a significant service disruption on July 29, 2026, with elevated error rates and latency affecting all models across its entire product suite.","source_index":0,"grade":"C"},{"step":"caught","text":"The outage was first flagged on Anthropic’s status page at 19:49 UTC and identified by 20:33 UTC.","quote":"The outage began at 19:49 UTC (12:49 PT) when Anthropic’s status page first flagged the issue as under investigation.","source_index":0,"grade":"C"},{"step":"done","text":"Recovery was reported across all models and the incident was formally closed at 22:36 UTC.","quote":"The company continued observing system performance to rule out any recurrence before formally closing the incident at 22:36 UTC, marking a total incident duration of approximately two hours and 47 minutes from initial detection to resolution.","source_index":0,"grade":"C"}],"model":"claude-haiku-5-5","prompt_version":"backfill-2026-11-01.2","extracted_at":"2026-11-01","source_urls":["https://cyberpress.org/claude-global-outage-caused-elevated-errors/"]},"analysis":{"sections":{"timeline":[{"text":"Outage began; status page flagged the issue as under investigation.","quote":"The outage began at 19:49 UTC (12:49 PT) when Anthropic’s status page first flagged the issue as under investigation.","source_index":0,"when":"2026-07-29 19:49 UTC"},{"text":"Engineering team identified the source of the elevated errors across multiple models.","quote":"By 20:33 UTC, Anthropic’s engineering team identified the source of the elevated errors, confirming that the problem spanned multiple models rather than being isolated to a single deployment.","source_index":0,"when":"2026-07-29 20:33 UTC"},{"text":"Update issued: recovery efforts underway and most models beginning to improve.","quote":"At 21:38 UTC, Anthropic issued an update noting that recovery efforts were underway and that most models were beginning to show improvement.","source_index":0,"when":"2026-07-29 21:38 UTC"},{"text":"Incident moved to monitoring status; recovery reported across all models.","quote":"At 22:20 UTC, Anthropic moved the incident to monitoring status, reporting recovery across all models and confirming that success rates had returned to normal levels.","source_index":0,"when":"2026-07-29 22:20 UTC"},{"text":"Incident formally closed after monitoring for recurrence.","quote":"The company continued observing system performance to rule out any recurrence before formally closing the incident at 22:36 UTC, marking a total incident duration of approximately two hours and 47 minutes from initial detection to resolution.","source_index":0,"when":"2026-07-29 22:36 UTC"}]},"model":"claude-haiku-5-5","prompt_version":"backfill-2026-11-01.2","extracted_at":"2026-11-01","source_urls":["https://cyberpress.org/claude-global-outage-caused-elevated-errors/"]}}