Causari vs Rayline

The first content-addressable ledger for AI agents. Every prompt, model, read, write and reasoning becomes an immutable causal event, captured at the wire, no agent...

Rayline builds ARC, the orchestrator model that chooses the model and reasoning effort for every turn, plus Workshop, Arena, and the ARC API.

About Causari

The first content-addressable ledger for AI agents. Every prompt, model, read, write and reasoning becomes an immutable causal event, captured at the wire, no agent cooperation required. Trace, bisect, revert and explain every line your agents wrote. re audit reads plain git history, detects AI-authored commits from verifiable metadata ( Co-Authored-By trailers, bot authors, aider markers) and measures how many of those lines are still alive at HEAD. Every number carries its evidence class: VERIFIED (explicit metadata) is never mixed with PROBABLE (heuristic).

About Rayline

Rayline builds ARC, the orchestrator model that chooses the model and reasoning effort for every turn, plus Workshop, Arena, and the ARC API. Rayline builds ARC, the first adaptive intelligence model, routing every turn to optimize cost and quality. ARC selects the model and reasoning effort most likely to succeed at every turn, at the lowest total cost. ARC works behind the API you already use, matching every request to the intelligence it needs. Production-ready software from an agent that adapts to the work.