Analysis: Anthropic's subscriptions offer ~5x more API-equivalent value per month than OpenAI's for agentic workloads with Claude Opus 5.5 vs. GPT-6.1 Sol (SemiAnalysis)

SemiAnalysis reports that Anthropic's subscriptions provide approximately five times more API-equivalent value per month compared to OpenAI's for agentic workloads. This analysis specifically compares Claude Opus 5.5 with GPT-6.1 Sol. The findings are based on limit testing various AI subscription plans from multiple providers, including Anthropic, OpenAI, Meta, SpaceXAI, MiniMax, Moonshot, Z.ai, Cursor, and Cognition.