LLM API Providers · reliability comparison
Anthropic API vs OpenRouter: which is more reliable? (2026)
OpenRouter is more reliable than Anthropic API, scoring 62.9 vs 36.8 out of 100. Over the last 90 days Anthropic API reported 36 incidents and OpenRouter reported 10, with effective uptime of 97.52% and 99.44% respectively. Anthropic API resolves incidents faster on average (3h 34m).
Data updated Nov 1, 2026 · How we score
| Metric | Anthropic API | OpenRouter |
|---|---|---|
| Reliability score | 36.8 | 62.9 |
| Rank (LLM API providers) | #11 | #8 |
| Uptime (90 days) | 97.52% | 99.44% |
| Incidents (90 days) | 36 | 10 |
| Partial / major outages | 23 | 2 |
| Avg time to resolve | 3h 34m | 6h 48m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Anthropic API and OpenRouter differ
- Anthropic API reported 3.6× as many incidents as OpenRouter over the last 90 days (36 vs 10).
- Anthropic API had 23 partial or major outages, compared with 2 for OpenRouter.
- Anthropic API fixes problems faster: 3h 34m on average, against 6h 48m for OpenRouter.
- Anthropic API's longest outage on record lasted 3d (Oct 7, 2026); OpenRouter's lasted 2h 10m (Oct 25, 2026).
90-day uptime
Anthropic API
OpenRouter
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Anthropic API incidents
- Partial outageOct 27, 2026 · resolved in 41m
Elevated errors for Claude Sonnet 5.5
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 27, 2026 · resolved in 42m
Elevated errors for Claude Sonnet 5.5
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 25, 2026 · resolved in 32m
Elevated errors for Claude Fable 5.1
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 25, 2026 · resolved in 1h 39m
Elevated errors for Claude Sonnet 5.5 and other models
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 24, 2026 · resolved in 37m
Elevated errors for Claude Fable 5 and Claude Fable 5.1
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
- Partial outageOct 24, 2026 · resolved in 6m
Elevated errors for Claude Opus 5.5
Affected: claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Recent OpenRouter incidents
- MaintenanceOct 26, 2026 · resolved in 6d 1h
Affected: Web & Application Services
- Partial outageOct 26, 2026 · resolved in 12m
Affected: Chat (/api/v1/chat/completions)
- Major outageOct 25, 2026 · resolved in 2h 10m
Video webhooks are not being calledofficial update ↗
Affected: Video (/api/v1/videos)
- Degraded performanceOct 15, 2026 · resolved in 1d 13h
Activity logs, usage metrics reporting are experiencing delays
Affected: Web & Application Services
- Degraded performanceOct 14, 2026 · resolved in 42m
Increased errors and latency on API requests in the US Pacific Northwest
Affected: Chat (/api/v1/chat/completions)
- Degraded performanceOct 8, 2026 · resolved in 6h 38m
Usage Reporting Delays in Web App
Affected: Web & Application Services
Other LLM API providers to consider
- Perplexity API · #1 · 99.94% uptime
- Cohere · #2 · 99.94% uptime
- Groq · #3 · 99.94% uptime
- Cerebras Inference · #4 · 99.88% uptime