If you are choosing an AI coding subscription for agentic work, the useful question is not which logo wins. It is which plan provides dependable access in the harness where the work actually happens.
For our Hermes workflows, OpenAI currently offers the clearest progression: begin with the $20 plan for everyday Codex usage, move to $100 when real workloads consistently hit the limits, and consider $200 only when sustained heavy usage makes the additional capacity valuable.
Start at $20. Let the workload—not the pricing page—tell you when to upgrade.
Why portability changes the comparison
Codex OAuth works in our Hermes setup, allowing an eligible OpenAI subscription to power work inside a third-party agent harness. That makes the subscription useful beyond a single vendor interface.
Claude is excellent inside Claude Code. The important distinction is that a Claude subscription does not include general API access, and Anthropic’s current restrictions make the subscription an unreliable backend for unrelated third-party agents. API usage is a separate product with separate billing.
The practical buying rule
1. Start with the smallest plan that can finish your real work.
2. Measure rate limits, task completion, and how often capacity blocks valuable jobs.
3. Upgrade only when the evidence shows that the next tier will remove a genuine constraint.
4. Keep the harness, memory, skills, and operating system portable so a model-provider decision never becomes an infrastructure hostage situation.