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Perceptron: Perceptron Mk1.5

perceptron/perceptron-mk1.5

Perceptron: Perceptron Mk1.5 is a 36,864-token model served on Composite at $0.188 per million tokens in and $1.88 per million tokens out.

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Specifications

Specifications and pricing as served by Composite
Model IDperceptron/perceptron-mk1.5
Providercv11
Context window36,864 tokens
Acceptstext, image, video, audio
Returnstext
Input price$0.188 per million tokens
Output price$1.88 per million tokens
Prompt cachingNot offered for this model
ThinkingOptional - see "Perceptron: Perceptron Mk1.5 (Reasoning)" in the catalog to turn it on by default
ModeratedNo
Cost on a monthly planAbout 2.7 plan credits per typical call (8k in, 1k out)
Routing endpoints2 (base plus 1 routing variant)

Use Perceptron: Perceptron Mk1.5 in JanitorAI or SillyTavern

Make a Composite API key and type perceptron/perceptron-mk1.5 as the model name. JanitorAI takes the full URL https://composite.lucidity.sh/v1/chat/completions; SillyTavern, ChubAI, Agnai and RisuAI take https://composite.lucidity.sh/v1. It runs on credits, a plan, or your own provider key.

JanitorAI setup · SillyTavern setup · Best Janitor AI proxies compared

Measured on Composite

This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.

Routing variants

The same model behind 1 alternative endpoint. Call the id directly to pin a route; the base id above picks for you.

RouteModel IDProviderPrice
cheapThink perceptron/perceptron-mk1.5:cheapThink cv11 $0.188 per million tokens input · $1.88 per million tokens output

Pricing

$0.188 per million tokens input · $1.88 per million tokens output

Credits pay the provider’s price plus 25%; cache hits cost less.

On a monthly plan, a typical call (8k tokens in, 1k out) uses about 2.7 plan credits, at the provider's own price.

Provider

cv11

Roleplay fit

This model is available on Composite alongside dozens of others from other labs, so it is easy to compare against similar options.

Context behavior

Its 36,864-token context window covers most single-session roleplay threads comfortably. For campaigns that run over many sessions, expect older messages to eventually drop out of context.

Cost for regular use

It is priced low enough for high-volume daily roleplay without the per-message cost adding up quickly.

From the provider

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,...

Supplied by cv11, not written by Composite.