LLM API Providers · reliability comparison
Anthropic API vs Perplexity API: which is more reliable? (2026)
Perplexity API is more reliable than Anthropic API, scoring 93.8 vs 36.8 out of 100. Over the last 90 days Anthropic API reported 36 incidents and Perplexity API reported 3, with effective uptime of 97.52% and 99.94% respectively. Perplexity API resolves incidents faster on average (36m).
Data updated Nov 1, 2026 · How we score
| Metric | Anthropic API | Perplexity API |
|---|---|---|
| Reliability score | 36.8 | 93.8 |
| Rank (LLM API providers) | #11 | #1 |
| Uptime (90 days) | 97.52% | 99.94% |
| Incidents (90 days) | 36 | 3 |
| Partial / major outages | 23 | 1 |
| Avg time to resolve | 3h 34m | 36m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Anthropic API and Perplexity API differ
- Anthropic API reported 12× as many incidents as Perplexity API over the last 90 days (36 vs 3).
- Anthropic API had 23 partial or major outages, compared with 1 for Perplexity API.
- Perplexity API fixes problems faster: 36m on average, against 3h 34m for Anthropic API (6.0× quicker).
- Anthropic API's longest outage on record lasted 3d (Oct 7, 2026); Perplexity API's lasted 4h 31m (Jun 4, 2026).
90-day uptime
Anthropic API
Perplexity API
- 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 Perplexity API incidents
- Degraded performanceOct 9, 2026 · resolved in 37m
Elevated API errors and timeouts
Affected: Computer, API, Website, App
- Major outageAug 13, 2026 · resolved in 1h 4m
Affected: App
- Degraded performanceAug 11, 2026 · resolved in 6m
Other LLM API providers to consider
- Cohere · #2 · 99.94% uptime
- Groq · #3 · 99.94% uptime
- Cerebras Inference · #4 · 99.88% uptime
- xAI API · #5 · 99.76% uptime