Claude.ai Currently Down, API Errors Elevated — April 28, 2026
An automatic system status notification posted to r/ClaudeAI indicates that Claude.ai is currently unavailable and the API is seeing elevated error rates. The update was triggered within 2 minutes of an official status change on status.claude.com at 2026-04-28T17:51:36.000Z.
Incident Details
- Service affected: Claude.ai (web interface) and Claude API (elevated errors)
- Status page: https://status.claude.com/incidents/9l93x2ht4s5w
- Auto-report source: Reddit bot
/u/ClaudeAI-mod-bot
Users can track resolution progress on the official status page linked above. For community discussion and real-time reports, the r/ClaudeAI Performance Megathread is also active.
This appears to be a broad outage affecting both the consumer-facing chat and the API. Developers relying on the API for production workloads should monitor the status page and consider fallback strategies. No ETA for resolution has been provided at the time of this posting.
📖 Read the full source: r/ClaudeAI
👀 See Also
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Local LLM Benchmark: Backend Generation by Function Calling – GLM, Qwen, DeepSeek Compared
A rigorous benchmark of local and frontier LLMs for backend code generation via function calling, with scoring rubric. Key findings: qwen3.5-35b-a3b matches gpt-5.4 on DB/API design, and dense Qwen 27B beats 397B MoE. Frontier models dropped due to cost.
Claude Opus 4.6's effort=low parameter differs from other providers' low-reasoning modes
Claude Opus 4.6's effort=low parameter controls general behavioral effort, not just reasoning depth, unlike OpenAI's reasoning.effort=low or Gemini's thinking_level=low. This caused agents to make fewer tool calls, be less thorough in cross-referencing, and ignore parts of system prompts about web research.
Claude Code v2.1.91 Updates: Agent Design Patterns, Memory Rules, and Tool Improvements
Claude Code v2.1.91 adds a reference guide for agent design patterns covering tool surface design, context management, and caching strategies. The update simplifies memory selection rules, adds security monitoring for memory poisoning, and improves tool descriptions for Edit, ReadFile, and Write operations.