Claude Opus 4.7 Backlash Reaches New Peak — MRCR Benchmark Collapse from 78.3% to 32.2%, 35% Token Inflation

VentureBeat / Hacker News·medium signal

Community backlash against Claude Opus 4.7 has intensified with quantified evidence of degradation: the MRCR long-context benchmark collapsed from 78.3% (Opus 4.6) to 32.2%, the new tokenizer consumes up to 35% more tokens for identical inputs, and Claude Code is flagging routine code as malware. AI Explained's analysis video is trending alongside a 216-upvote r/ClaudeAI thread. Anthropic's Claude Code head Boris Cherny confirmed that 'adaptive thinking' was shifted to 'medium effort' in early March, which users characterize as 'AI shrinkflation.'