Perceptron: Perceptron Mk1.5

Perceptron released Mk1.5 on September 25, 2026, as a multimodal perception model built for physical agents. It accepts text, image, video, and audio inputs, and outputs natural-language text alongside optional structured spatial annotations including points, bounding boxes, polygons, and temporal clips. Pricing is set at $0.15 per million input tokens and $1.50 per million output tokens. Mk1.5 succeeds Perceptron's prior flagship vision-language model Mk1, extending its support to four input modalities and structured annotation outputs. The model supports graded reasoning via standard reasoning controls, function tool calling, and structured outputs via JSON Schema. Audio analysis of video soundtracks is opt-in and only runs when explicitly enabled per request.

A third-party model profile confirms Perceptron Mk1.5 as an embodied reasoning model for physical agents, released September 25, 2026. It accepts text, image, video, and audio inputs and returns text plus optional structured annotations such as points, boxes, polygons, and tracks. API pricing is listed at $0.15 per million input tokens and $1.50 per million output tokens. The listing reports a 36,900-token context window with 8.2K maximum output, along with capability flags for reasoning, vision, function calling, JSON mode, and streaming. These specifications align with the model's positioning as a multimodal perception system for robotics and physical-AI applications.