Claude Opus 4.7 hits stability snags
Anthropic resolved a 90-minute service disruption impacting Claude Opus 4.7 and Sonnet 4.6 models. The incident affected both the API and Claude Code, continuing a pattern of intermittent stability issues since the 4.7 series rollout in April.
The latest Opus 4.7 reliability issues suggest that pushing the frontier of 1M-token context windows and "xhigh" effort levels is taxing Anthropic's infrastructure.
- –Intermittent failures in the first month of rollout indicate significant scaling challenges for the new flagship series.
- –Stability issues directly impact Claude Code users, highlighting the extreme sensitivity of agentic workflows to API latency and error rates.
- –Frequent infrastructure changes, including recent outbound IP shifts, are causing friction for enterprise teams with strict security allowlists.
- –While model performance remains industry-leading, the high-compute "xhigh" effort level appears particularly prone to timeouts during peak US East Coast hours.
DISCOVERED
1h ago
2026-05-15
PUBLISHED
5h ago
2026-05-15
RELEVANCE
AUTHOR
rob