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ScaleDown: Classify-1

scaledown/classify-1

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Classify-1 is a structured decision model from ScaleDown, served through OpenRouter's Decisions API. It scores text or a document against caller-defined choice, yes/no, and ordered-scale questions and returns calibrated probabilities rather than generated prose, making it suited for routing, moderation, intent detection, and domain tagging inside an application. It is request-compatible with TypeSafe's Jev Decisions API.

Learn more in ScaleDown's docs: https://docs.scaledown.ai/api-reference/decisions-overviewOpens in new tab

Modalities
In / Out Price
20% off
$0.04 / $0per 1M
Context
1.0M
Released
Oct 13, 2026
Compare
PlaygroundProvidersPricingPerformanceUptimeAppsActivityDocumentationFAQExplore

Playground

Providers

This model is hosted by one provider. OpenRouter forwards every request to it directly — no routing decisions to make.

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.

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).

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.

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.

Activity

Token volume and request traffic to this model over time.

API

Drop-in code to call this model. It runs on the OpenRouter Decisions API rather than the OpenAI-compatible chat endpoint, so the request and response shapes below are specific to structured decisions — chat completions SDKs will not work with it.

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

Documentation

Guides, cookbooks, blog posts, and tools for building with ScaleDown: Classify-1 on OpenRouter.

  • Detect Stuck and Looping Agents with ScaleDown ClassifyCookbook
  • Decisions LabLab

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Frequently asked questions

Classify-1 is a structured decision model from ScaleDown, served through OpenRouter's Decisions API. It scores text or a document against caller-defined choice, yes/no, and ordered-scale questions and returns calibrated probabilities rather than generated prose, making it suited for routing, moderation, intent detection, and domain tagging inside an application.

The Classify-1 documentation on OpenRouter includes the Detect Stuck and Looping Agents with ScaleDown Classify cookbook and the interactive Decisions Lab. The quickstart covers API keys and your first request, and the API reference lists every parameter.

Classify-1 costs $0.04/M input tokens and $0.00/M output tokens.

Classify-1 has a 1,000,000 token context window.

Classify-1 accepts text, images, and files such as PDFs as input and returns structured decisions.

Summarize and Extract are other text models from Scaledown.

Classify-1 was released on October 13, 2026.