Agnes 1.5 Pro

Agnes 1.5 Pro appears in the Sapiens AI namespace and is served through the ZenMux model router, giving developers a single integration point for the model's text-to-text capabilities. The directory listing points to ZenMux's own provider documentation at docs.zenmux.ai as the reference for API behavior, which positions Agnes 1.5 Pro as a third-party hostable model rather than a self-served open release. Its presence on Puter's developer model index further suggests the same weights can be reached through alternative front-ends that aggregate external providers.

For practical use, Agnes 1.5 Pro is shaped for workflows that blend reasoning with tool use, exposing temperature controls so callers can tune determinism against creativity depending on whether the task is analytical or generative. The very large context budget makes it well suited to long-document analysis, multi-step agent loops, and code refactors that need to keep many files in view at once. Together those traits make the model a reasonable fit for agentic assistants, retrieval-heavy pipelines, and developer tools where the application owns orchestration while ZenMux handles inference.