> For the complete documentation index, see [/llms.txt](/llms.txt).

# Solar Pro 3

> Source: /docs/models/solar-pro-3

> Deprecation notice
>
> Solar Pro 3 (the `solar-pro3` alias and all of its versions) will be fully deprecated on **October 30, 2026 (KST)**. Requests naming it will return an error after that date. Please migrate to [Solar Pro 4](/docs/models/solar-pro-4) before then.

Powerful MoE model with 102B parameters

[Compare](/docs/models/compare/generative-intelligence)

- **Intelligence**: 3 (Higher)
- **Speed**: 5 (Fast)
- **Price**: $0.15/1M tokens (Input Token)
- **Price**: $0.6/1M tokens (Output Token)
- **Price**: $0.015/1M tokens (Cached Token)

Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency. Optimized for Korean with English and Japanese support. [Learn more](https://www.upstage.ai/blog/en/solar-pro-3-0127?utm_medium=console&utm_source=docs-models)

- 128,000 context length
- 102B / 12B active parameters
- Jul, 2025 training data cut-off
- Reasoning mode available

## Languages

- English: Input and output
- Korean: Input and output
- Japanese: Input and output

## Capabilities

- [Chat](/docs/capabilities/generate/chat): Supported
- [Structured outputs](/docs/capabilities/generate/structured-outputs): Supported
- [Tool calling](/docs/capabilities/generate/tool-calling): Supported
- [Reasoning](/docs/capabilities/generate/reasoning): Supported

## Available Platforms

- Upstage Console
- [On-premises](https://www.upstage.ai/contact-us?utm_medium=console&utm_source=docs-models&utm_content=text-link)

## Versions

### solar-pro3-260323 (Alias: solar-pro3)

Released on 2026-03-23

Training data cut-off: Jul, 2025

This release includes the following updates.

- Improved Agentic Performance.
- Improved Deep Reasoning performance.
- Available platforms: Upstage Console, [On-premises](https://www.upstage.ai/contact-us?utm_medium=console&utm_source=docs-models&utm_content=text-link)

### solar-pro3-260126

Released on 2026-01-26

Training data cut-off: Jul, 2025

Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency.

- 102B total parameters / 12B active (MoE architecture)
- 128K context length
- Optimized for Korean language with English and Japanese support
- Supports chat, reasoning, structured outputs, function calling, and parallel tool calls
- Available platforms: [On-premises](https://www.upstage.ai/contact-us?utm_medium=console&utm_source=docs-models&utm_content=text-link)

## API privacy

Data not collected

Upstage does not collect any data from this API

1. API input data is not used for model training.
2. API input data is not stored, unless required for service delivery and explicitly stated.

Free

Chat with Solar Pro 3 in the Playground!

✓ Chat with Solar Pro 3

✓ Configure & run in browser

✓ No API key needed - free to try

[Try it in the Playground](/playground/chat)