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Favicon for perceptron

Perceptron

Access 2 Perceptron models through the OpenRouter unified API including Perceptron Mk1.5 and Perceptron Mk1. Compare pricing, context windows, benchmarks, and capabilities between different Perceptron models.

Perceptron tokens processed on OpenRouter

  • Favicon for perceptron
    Perceptron: Perceptron Mk1.5Perceptron Mk1.5
    4.98M tokens

    Perceptron Mk1.5 is Perceptron's embodied reasoning model for physical agents. It accepts text, image, video, and audio input, and answers with text plus optional structured annotations: points, boxes, polygons, tracks, and clips. It supports graded reasoning through the standard reasoning controls, function tool calling, and structured outputs via JSON Schema. Structured annotations are emitted inline with text only when requested via the annotation_format parameter ("point", "box", or "polygon" for spatial localization on images, "clip" for temporal segments in video). Video soundtracks are analyzed only when explicitly enabled per request.

    by perceptronSep 25, 202637K context$0.15/M input tokens$1.50/M output tokens
  • Favicon for perceptron
    Perceptron: Perceptron Mk1Perceptron Mk1
    200M tokens

    Perceptron Mk1 (Mark One) is Perceptron's highest-quality vision-language model for video and embodied reasoning.** It accepts image and video inputs paired with natural language queries, and produces detailed visual understanding responses, either structured or natural language. It excels at video understanding tasks like video QA, summarization, and event detection. On image inputs, it advances point-by-example grounding from multimodal prompts, OCR and document parsing on messy real-world inputs, open vocabulary object detection and counting, and hand pose estimation. Reasoning can be enabled per request to trade latency for deeper analysis on harder tasks. Structured annotations are emitted inline with text only when explicitly requested via the annotation_format parameter (pass "point", "box", or "polygon" for spatial localization on images, or "clip" (start/end timestamps) for temporal segments in video). Without annotation_format, the model returns natural-language text only.

    by perceptronMay 12, 202633K context$0.15/M input tokens$1.50/M output tokens

Frequently asked questions

OpenRouter serves 2 Perceptron models behind one OpenAI-compatible API. Create an OpenRouter API key, point your client at https://openrouter.ai/api/v1, and set the model to an ID such as perceptron/perceptron-mk1.5. The quickstart has request examples for every supported SDK.

Perceptron Mk1.5 has the largest context window of any Perceptron model on OpenRouter, accepting up to 36,864 tokens per request.

Perceptron Mk1.5 is the most recently added Perceptron model on OpenRouter, listed on September 25, 2026.