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Osaurus

Project Nov 2, 2026

A Mac agent workspace with local and cloud models, tools and memory; version 0.25.31 adds native reasoning tiers and improves long tool-chain compaction.

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Project-published Osaurus interface showing a Writer agent, model selector, Sandbox and Folder controls, and a message composer.
Osaurus interface artwork from the English 0.25.31 README. It illustrates the application workspace, not a demonstration of the new reasoning tiers or an independent model-performance test. Source: Osaurus contributors
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Osaurus timeline

Osaurus is a Mac agent workspace. The reviewed 0.25.26 documentation describes pluggable harness runtimes for Claude Code and Pi, with runtime selection, configuration documents and agent bundles. These integrations concern how agents run inside the application, rather than the release of a language-model checkpoint.

Its exchange features include agent templates and an osaurus import command. An optional local access key protects sensitive routes. When evaluating a bundle, the relevant details are its configuration, the selected runtime and the file permissions it receives. The release timeline below records the dated October 24 update separately from this project overview.

Version 0.25.31 was published on November 2 at 18:57:51 UTC. Its release notes add native reasoning-effort tiers where model bundles declare them, opt-in response metrics per agent and compaction between completed tool batches. The tagged documentation requires Apple Silicon and macOS 15.5 or newer; its Linux VM sandbox requires macOS 26, with a different native sandbox on earlier supported versions. Local models and cloud providers remain separate execution choices.