Uptimeby GlyphAnthropic SLA
AI · 1 of 3 services with an SLA · up to 99.5% · checked 47d ago
Services
Anthropic publishes no SLA for it; its status page showed 4.4 d of major outage in the last year.
Observed 98.805% over 365 days
Anthropic promises 99.5% uptime; its status page showed 4.3 d of major outage in the last year.
Observed 98.809% over 365 days
Anthropic publishes no SLA for it; its status page showed 4.5 d of major outage in the last year.
Observed 98.757% over 365 days
Claude API (Standard tier)Anthropic publishes no SLA for it; its status page showed 4.4 d of major outage in the last year.NoneFirst creditn/aObserved 365d98.805%All incidents 92.395%
Latest incidents
Status pageElevated errors affecting the Google Calendar connector
A minor incident on claude.ai, Claude Code, Claude Cowork for 3.8 h, not counted as downtime.
12 days ago
Elevated errors affecting the Gmail connectorA minor incident on claude.ai, Claude Code, Claude Cowork for 1.8 h, not counted as downtime.
12 days ago
Elevated errors for Claude Sonnet 5.5A partial outage or slowdown on claude.ai, Claude API (api.anthropic.com), Claude Code and 1 more for 41 min, not counted as downtime.
13 days ago
Elevated errors for Claude Sonnet 5.5A partial outage or slowdown on claude.ai, Claude API (api.anthropic.com), Claude Code and 1 more for 42 min, not counted as downtime.
13 days ago
Elevated errors for Claude Fable 5.1A partial outage or slowdown on claude.ai, Claude API (api.anthropic.com), Claude Code and 1 more for 32 min, not counted as downtime.
2 weeks ago
Elevated errors for Claude Sonnet 5.5 and other modelsA partial outage or slowdown on claude.ai, Claude API (api.anthropic.com), Claude Code and 1 more for 99 min, not counted as downtime.
2 weeks ago
Elevated errors for Claude Fable 5 and Claude Fable 5.1A partial outage or slowdown on claude.ai, Claude API (api.anthropic.com), Claude Code and 1 more for 37 min, not counted as downtime.
2 weeks ago
Elevated errors for Claude Opus 5.5A partial outage or slowdown on claude.ai, Claude API (api.anthropic.com), Claude Code and 1 more for 6 min, not counted as downtime.
2 weeks ago
Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5A major outage on claude.ai, Claude API (api.anthropic.com), Claude Code and 1 more for 34 min, counted as downtime.
2 weeks ago
Elevated errors affecting ConnectorsA minor incident on claude.ai, Claude Cowork for 4.3 h, not counted as downtime.
2 weeks ago
Degraded performance for Claude Fable 5A minor incident on claude.ai, Claude API (api.anthropic.com), Claude Code and 1 more for 40 min, not counted as downtime.
2 weeks ago
Elevated errors on platform.claude.comA partial outage or slowdown on Claude Console (platform.claude.com) for 72 h, not counted as downtime.
72 h counted, ran 6.2 d4 weeks ago
Support response times
Anthropic publishes no support response times.
SLA changes
Claude Enterprise (claude.ai)
Updated enterprise plan details and availability information.
2 weeks agoPage
Claude API Priority Tier
Updated model support list and clarified service tier descriptions.
2 weeks agoPage
Claude API Priority Tier
Priority Tier moved from a purchasable offer ('Get started with Priority Tier ... Higher availability: Target 99.5% uptime', still present in the 2025-11-11 snapshot) to 'no longer available for purchase' for new commitments. The 99.5% target is unchanged. Exact change date unknown; after 2025-11-11, observed 2026-09-23.
6 weeks agoSource
About Anthropic
Only public number is the Priority Tier 99.5% uptime target, now closed to new buyers. Standard API is best-effort; Commercial Terms disclaim availability. No public support response times. Status page components (status.claude.com/api/v2/components.json): claude.ai, Claude Console (platform.claude.com), Claude API (api.anthropic.com), Claude Code, Claude Cowork, Claude for Government.
Anthropic, PBC is an American artificial intelligence (AI) public benefit corporation headquartered in San Francisco, California. Its flagship product is Claude, a series of proprietary large language models (LLMs). Source
Highest commitment: Claude API Priority Tier, 99.5% (Priority Tier (existing commitments only)).
Promise vs reality, last year
ServiceDowntime vs allowed
Promised in the SLAObserved on the vendor's status pagePartial historyShortfall
- Status history
- Status history since Sep 22, 2025
- Weighted uptime
- All incidents, weighted: 92.395% · Downtime
- Status page
- status.claude.com/
- Across Glyph
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