Solar Pro 3

SyncDev model directory · Profile updated Oct 13, 2026

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Solar Pro 3 from Upstage: Flagship model for demanding analysis, coding, and production agent workflows.

Key specifications

Context window
131.07K
Max output
8.19K
License
Proprietary

Inputs and outputs

Recorded modality support shows what this model can accept and produce. An undocumented modality is shown as unknown rather than assumed to be unsupported.

Accepts

  • Text input

Produces

  • Text output

Capabilities

ReasoningFunction calling

What is Solar Pro 3?

What Solar Pro 3 is for

Flagship model for demanding analysis, coding, and production agent workflows. The registry places it in the solar-pro family with a release date of 2026-01. This profile describes its documented interface and how to evaluate it for the intended task.

Inputs and request limits

The recorded inputs are text, with text output. The registry lists a 131,072-token context window and up to 8,192 output tokens. It also declares reasoning and function calling. These are specifications, not a measured quality or speed ranking. A host can impose its own request limits and support a different subset of features.

Deployment and cost

Solar Pro 3 is recorded as a hosted model without downloadable weights. Confirm the current model ID and access conditions on the chosen API. A registry listing alone does not establish that an account or region has access.

No independently checked token rate is added from a hosting alias. Use the route’s current price and billing unit when comparing cost, including output, reasoning, cache behavior and retries where applicable.

What to test

Use tasks with checkable intermediate steps and a clear final answer. Keep reasoning settings and tool access consistent across candidates. Count the tokens and retries needed for an accepted result; a context limit or reasoning flag does not predict task accuracy.

Evidence and related models

A supporting source document was retrieved for this entry. Specifications above remain attributed to the models.dev record unless the publisher supplies a more specific limit. SyncDev has not independently benchmarked Solar Pro 3.

Browse Upstage models, explore related tasks, or compare two models using the same workload.

How to evaluate Solar Pro 3

Compare the model on the work you need to complete.

Tasks and inputs

Solar Pro 3 is listed for Text generation. It accepts text and produces text. Use the publisher’s input format and preprocessing for your chosen deployment.

Capacity and cost

Documented limits: 131.07K context and 8.19K maximum output. Measure a completed task using the prompts, documents and tools your application will use. Include reasoning and retries in the result.

Choosing a deployment

Use the model identifier and account requirements for the selected API route. Confirm its request limits and output format with one complete task before connecting a larger workflow.

Frequently asked questions

Solar Pro 3 from Upstage: Flagship model for demanding analysis, coding, and production agent workflows.

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