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Model infoModelsSnapshot: 15 Oct 2026

Upstage / Solar Decide

Solar Decide

Structured decisions served on Solar Mini 4 through the System One endpoint; no independent weight release is claimed.

Text analysis
previewClosed-source managed componentText analysis
Official documentation (opens in a new tab)Reviewed 14 Oct 2026
11 of 22 specification fields collected
Context window512K512,000 tokens
Maximum outputNot collectedAwaiting source review
Input billingSee ratesUpstage System One API
Output billingSee ratesPublished units and conditions below

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
512,000 tokensSource for Context / input limit (opens in a new tab)

Provider writes 512K; displayed using decimal K. No binary-token ceiling is inferred.

Maximum input tokens
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Maximum output
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Parameters
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Architecture
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Languages
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Knowledge cutoff
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Release date
2026-09-22Source for Release date (opens in a new tab)
Reasoning
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Tool calling
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Structured output
SupportedSource for Structured output (opens in a new tab)

Typed decision schema, not a general chat JSON-Schema claim.

Streaming
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Batch processing
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Fine-tuning
Not collected

Not verified for this exact release or deployment. No unrelated sibling specification inherited.

Context caching
SupportedSource for Context caching (opens in a new tab)

Cached-input price is published, but it equals the ordinary input price. Thresholds and TTL remain unverified.

Input modalities
TextSource for Input modalities (opens in a new tab)
Output modalities
Decisions, ProbabilitiesSource for Output modalities (opens in a new tab)
Release identity
solar-decideSource for Release identity (opens in a new tab)

Aliases are endpoint selectors attached to the identified version, not additional independent model records.

Base model
Solar Mini 4Source for Base model (opens in a new tab)
API request fields
state and typed questions: choice, score or noulSource for API request fields (opens in a new tab)
Generation controls
One output token per question; no prose generation and no output-token charge.Source for Generation controls (opens in a new tab)

A single forward pass produces each typed decision. This is not a zero-token output ceiling.

Request limits
Choice questions accept 2 to 26 options; larger choices return HTTP 422.Source for Request limits (opens in a new tab)

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

Upstage System One API

Provider source (opens in a new tab)
API model ID
solar-decide

Exact provider-listed version selector; current availability depends on lifecycle.

Access
Beta System One endpoint POST /v1/systemone; API key required.
Regions
Not collected

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 14 Oct 2026
CategoryUsageRateUnit
Structured decisionsInput1$0.101M tokens
Structured decisionsCached input1$0.101M tokens
Structured decisionsOutput1$0.001M tokens

Rate conditions

  1. Typed decisions on Solar Mini 4, not a general chat endpoint. Output is explicitly free; input and cached input have the same published rate.
Pricing source (opens in a new tab)

Data & enterprise terms

Retention, training use, regional processing and enterprise terms have not been summarized for this endpoint.

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

Upstage System One API

solar-decide
Documented

The provider publishes an exact-model cached-input rate.

Support evidence (opens in a new tab)
How it works
Not collected

No verified exact-model cache contract for this field. Missing documentation does not establish lack of support.

Minimum reusable input
Not collected

No verified exact-model cache contract for this field. Missing documentation does not establish lack of support.

Lifetime & refresh
Not collected

No verified exact-model cache contract for this field. Missing documentation does not establish lack of support.

How to enable it
Not collected

No verified exact-model cache contract for this field. Missing documentation does not establish lack of support.

Usage fields
Not collected

No verified exact-model cache contract for this field. Missing documentation does not establish lack of support.

Billing rules
USD 0.1 per million cached input tokens at the standard list rate.Source for Billing rules (opens in a new tab)

The listed cached-input rate equals the ordinary input rate. No discount is inferred.

Limits & data boundaries
Not collected

No verified exact-model cache contract for this field. Missing documentation does not establish lack of support.

Cache reads, writes & storage
ChargeApplies toRate / unit
Cached input1Structured decisions$0.10 / 1M tokensPricing evidence (opens in a new tab)

Rate conditions

  1. Typed decisions on Solar Mini 4, not a general chat endpoint. Output is explicitly free; input and cached input have the same published rate.

Observed 14 Oct 2026. Write rates and storage fees are different charges; use the billing rules above.

Caching reviewed 14 Oct 2026

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

Provider documents a managed capability based on an existing Solar model. It is not counted as a separately identified trained-weight release.

Classification evidence (opens in a new tab)

Lifecycle dates

Provider-listed version release22 Sept 2026Source (opens in a new tab)

Sources reviewed