Apodex 1.0 launches with open-weight models at 0.8B, 2B, and 4B, trained not for general generation but for specialized sub-agent roles—fact-checking external claims and verifying tool call outputs before passing results to a main controller. The design targets long-horizon agent workflows where routing small tasks to lightweight models avoids wasteful use of 70B+ models at every step. AgentHarness, an open-source evaluation framework for local multi-step agent pipelines, is released alongside the weights.
AgentsView, built by Wes McKinney, visualizes token usage and costs across local coding agents. When Claude Fable 5 launched without being listed in AgentsView's pricing database, Simon Willison used Fable itself to reverse-engineer the tool and find a recipe for setting custom prices. He also shared a treemap showing over $83 in single-day Fable 5 spending and $516 saved via prompt caching.