The BringYourSubs blog.
News and analysis on apps that run on the Claude, ChatGPT/Codex or Cursor subscription you already pay for, and what changes when a vendor lets you bring your own plan.
Use your own Claude or ChatGPT subscription in other apps: the cost, the rules, what to check
A flat Claude or ChatGPT plan usually beats metered API billing for agent work. The maths, what OpenAI and Anthropic allow, and what to check in an app.
· 7 min read
Why frontier models handle heavy tool and skill loads, and smaller models struggle
Agents get worse as you add tools, skills and history. The benchmarks, the causes, and what it means when you pick an app for your Claude or ChatGPT plan.
· 6 min read