Anthropic has addressed widespread reports of performance degradation in its Claude AI assistant while simultaneously announcing expanded integration capabilities with personal applications including Spotify, Uber Eats, TurboTax, and others.

For several weeks, developers and users reported what they termed "AI shrinkflation" - a perceived decline in Claude's reasoning capabilities, increased hallucinations, and faster token consumption. The complaints gained traction across developer platforms including GitHub, Reddit, and X, with users claiming the AI had shifted from thorough analysis to superficial responses.

In a technical post-mortem published today, Anthropic identified three specific product-layer changes that caused the reported issues. The company found that a March 4 change reducing default reasoning effort from high to medium in Claude Code, a March 26 caching bug that cleared the model's thinking history, and April 16 verbosity limits all contributed to apparent performance degradation. Anthropic emphasized that the underlying model weights remained unchanged.

Third-party benchmarks appeared to validate user concerns. BridgeMind reported Claude Opus 4.6's accuracy dropped from 83.3% to 68.3% in their tests, though some researchers questioned the consistency of these benchmark comparisons. AMD Senior Director Stella Laurenzo published an analysis of over 6,800 Claude sessions showing decreased reasoning depth and increased tendency toward simple fixes rather than correct solutions.

Anthropic has implemented fixes for all three identified issues and announced operational changes to prevent future regressions. These include requiring more internal staff to use public builds, enhanced evaluation procedures for system changes, and improved auditing tools. The company also reset usage limits for all subscribers as of April 23 to compensate for the performance issues.

Separately, Anthropic expanded Claude's integration capabilities beyond work-related applications to include personal services such as Audible, AllTrails, TripAdvisor, and Instacart. The expansion builds on existing integrations with Microsoft applications and other business tools, extending the AI assistant's utility into consumer applications for entertainment, travel, and daily tasks.