@hwchase17 is naming the lock-in play that model providers don't want builders to notice. Your agent's memory is the valuable part. Personal…

@hwchase17 is naming the lock-in play that model providers don't want builders to notice. Your agent's memory is the valuable part. Personalization, context, preferences that compound over time. If that memory lives inside a closed harness, you're renting the thing that matters most. Anthropic's Managed Agents. OpenAI's encrypted compaction. The pattern is clear. The builder's question isn't which model is best. It's who controls the state.

Model providers don’t lock you in with the API. They lock you in with your own data. Memory is the moat. If you don’t own your agent’s harne…
“Memory is important, and it creates lock in” Exactly why I don’t want OpenAI, Anthropic or any of the other AI companies owning it.
@hwchase17 is spot on: Agent harnesses are the real foundation now — and they're fused with memory. Give a closed/proprietary harness contro…
Great piece. The lock-in point is the one nobody talks about enough. If your agent’s memory lives behind someone else’s API, you don’t have …
If you don't own the memory, you don't own the agent: - memory is what makes your agent get smarter over time - without it, anyone with the …
memory ownership is why we need open harnesses blog about this coming this weekend

Source: Harrison Chase (X) | 2026-04-12

Related