Apps
Multiple Claude versions and agent slots — same literacy rule: harness beats raw chat when the output must match your business.
Claude is Anthropic’s chat and agent surface. In the room 2026-08-19, Branka named what many members feel: ChatGPT and Claude do not return the same information — because context, instructions, and attached files differ (Deterministic vs probabilistic).
When to use
- Long-form drafting when you want a distinct model “voice” from ChatGPT.
- Custom agents with standing instructions (Claude’s project/agent pattern).
- Analysis passes where you deliberately rotate models for critical thinking.
Harness note
Treat Claude like any other surface: attach Manual slices, mega-prompts, or business voice files before you automate outbound. Do not assume cross-vendor memory — rebuild instructions when you switch stacks.