1. Opus and Sonnet.
2. Compute capacity. Anthropic has much more of it than your average coding startup.
3. The developing ecosystem around Claude Code.
/s
To be clear, I accept you might be right, but I think the crux is whether lag time is increasing, steady or growing.
It looks to me that Anthropic is one or two Gemmas away from a lot of people using Opus for 20% of hard use cases and letting on-device LLM rip through the code base on a Mac Mini or Studio and OpenCode.
Once Claude Code is not the only game in town and Cowork is made redundant by Google pulling their finger out on integration with Workspace, what else is there for Anthropic?
Where open models can make a difference for agentic use is with third-party inference at scale, which can actually be fast enough for reasonable workflows.
OpenCode: you pay per token.
Claude Code: you pay a flat fee.
Claude Code Enterprise: you pay per token
And the subscription is not Anthropic's moat either since it's likely heavily subsidized. They're just using it to acquire customers.
The moat is locking you into Anthropic's model particularities (extended thinking, getting you into their "mindset", etc.)