Perceptron Mk1.5
Perceptron Mk1.5 is a reasoning model from Perceptron released on Sep 25, 2026. It reads text, images, audio and video and writes text, with a 37K token context window and up to 8K tokens per reply.
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It costs $0.15 per million input tokens and $1.50 per million output tokens.
It supports tool calling and structured JSON output.
2 providers serve it, including Kilo Gateway and NanoGPT.
- Modalities
- In / out price
- $0.15 / $1.50 per 1M
- Context
- 37K
- Max output
- 8K
- Released
- Sep 25, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Perceptron Mk1.5 pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.15 / 1M tokens | |
|---|---|---|
| Output | $1.50 / 1M tokens |
Perceptron Mk1.5 providers
2 providers serve it, including Kilo Gateway and NanoGPT. Each host sets its own price and limits, so the cheapest one is not always the one with the longest context.
| Provider | Input /M | Output /M | Cache read /M | Context | Max output |
|---|---|---|---|---|---|
| Kilo Gateway | $0.15 | $1.50 | – | 37K | 8K |
| NanoGPT | $0.15 | $1.50 | – | 37K | 8K |
What Perceptron Mk1.5 costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Perceptron Mk1.5 through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning
Alternatives to Perceptron Mk1.5
Models that take the same inputs and call tools, closest in price, cheaper ones first.
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More from Perceptron
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Perceptron Mk1.5 questions
How much does the Perceptron Mk1.5 API cost?
$0.15 per million input tokens and $1.50 per million output tokens. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Perceptron Mk1.5?
36,864 tokens of input, and it can write up to 8,192 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Which providers serve Perceptron Mk1.5?
2 providers serve it, including Kilo Gateway and NanoGPT. Prices differ by host, so the Providers table on this page lists each one with its input and output price.
Does Perceptron Mk1.5 support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is Perceptron Mk1.5 open source?
No. Perceptron serves it through an API only, so you cannot download the weights or host it yourself.
When was Perceptron Mk1.5 released?
Sep 25, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Perceptron Mk1.5?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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