# Perceptron Mk1.5

> Perceptron Mk1.5 is a language model from Perceptron, released on 25 Sept 2026. It accepts text, images, video and audio and generates text, with a 37K-token context window and up to 8K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.15 per million input tokens and $1.50 per million output tokens (OpenRouter), across 1 provider we track.

Source page: https://www.aimodel.directory/models/perceptron-mk1-5
Last verified: 4 Oct 2026

## Specifications

- **Developer:** Perceptron
- **Release date:** 25 Sept 2026 (source: OpenRouter, https://openrouter.ai/perceptron/perceptron-mk1.5)
- **Status:** Generally available
- **Context window:** 37K (36,864 tokens) (source: OpenRouter, https://openrouter.ai/perceptron/perceptron-mk1.5)
- **Max output:** 8K tokens (source: OpenRouter, https://openrouter.ai/perceptron/perceptron-mk1.5)
- **Input:** Text, images, video and audio (source: OpenRouter, https://openrouter.ai/perceptron/perceptron-mk1.5)
- **Output:** Text (source: OpenRouter, https://openrouter.ai/perceptron/perceptron-mk1.5)
- **Reasoning mode:** Yes (source: OpenRouter, https://openrouter.ai/perceptron/perceptron-mk1.5)
- **Tool calling:** Yes (source: OpenRouter, https://openrouter.ai/perceptron/perceptron-mk1.5)
- **Structured output:** Yes (source: OpenRouter, https://openrouter.ai/perceptron/perceptron-mk1.5)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| OpenRouter | $0.15 | $1.50 | – | 37K |

## FAQ

### What is the context window of Perceptron Mk1.5?

Perceptron Mk1.5 has a context window of 36,864 tokens (37K) and can generate up to 8,192 tokens in a single response, according to OpenRouter.

### How much does the Perceptron Mk1.5 API cost?

Perceptron Mk1.5 is listed from $0.15 per million input tokens and $1.50 per million output tokens (OpenRouter). Prices last verified 4 Oct 2026.

### When was Perceptron Mk1.5 released?

Perceptron released Perceptron Mk1.5 on 25 Sept 2026, according to OpenRouter.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Perceptron Mk1.5", https://www.aimodel.directory/models/perceptron-mk1-5