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Perceptron: Perceptron Mk1.5

perceptron/perceptron-mk1.5

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 enabled per request via provider.options.perceptron.enable_audio_in_video: true.

Modalities
In / out price
$0.15 / $1.50per 1M
Context
37K
Released
Sep 25, 2026

Providers

This model is hosted by one provider. OpenRouter forwards every request without routing.

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Weighted average

Input
$0.1491/M tokens
Output
$1.497/M tokens
Price history
No effective price data for this selection

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Throughput
84tok/s

P50, best across providers

Latency
0.86s

P50, best provider

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Uptime (3d)The model was reachable. Request routed to a provider.
100.00%
Availability (3d)The model returned inference from any provider. Errors and empty responses count against it.
99.84%

Availability over the last 3 days

Last 72 hours
Availability 99.84%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.98%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

1.
Favicon for https://github.com/vladyslavkrasov/ClipFactory
ClipFactory Video Scoring
new
26.3Mtokens
2.
Favicon for https://richpanel-portal-production.up.railway.app/
AYBL Support Portal
new
22.6Mtokens
3.
Favicon for https://pi.dev/
pi
4.09Mtokens
4.
Favicon for https://portal.nousresearch.com/api-docs
Nous Research API
3.44Mtokens
5.
Favicon for https://openrouter.ai/images/apps/cline.png
Cline
3.21Mtokens
Rest of OpenRouter
462K
Top 5 Apps
214K

Activity

Token volume and request traffic to this model over time.

API

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

Not currently available through EU in-region routing. In-region routing docs

Frequently asked questions

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