Solar Pro Models by Upstage
About
The Upstage Solar Pro LLM, part of the Solar family of AI models, is a compact yet powerful language model designed to excel in fine-tuning tasks across various domains. Built on the Llama 2 architecture, Solar Pro leverages innovative techniques like Depth Up-Scaling (DUS) for improved scalability and performance without adding significant complexity. The model has demonstrated superior fine-tuning capabilities, consistently outperforming comparable open-source models on diverse tasks such as natural language understanding, reasoning, and code generation. Solar Pro integrates seamlessly with platforms like Amazon SageMaker JumpStart, offering pre-configured tools for easy deployment and customization. This integration enables developers to adapt the model for specific use cases, backed by components like Layout Analysis and Groundedness Check, which ensure reliable, contextually accurate outputs. These tools enhance the model’s ability to process and contextualize unstructured data effectively, minimizing risks like hallucination in generated responses. Designed with accessibility and cost-efficiency in mind, Solar Pro supports lightweight deployment options, running on GPUs with as little as 24GB of VRAM while scaling to handle high-volume requests efficiently. It combines advanced inference capabilities, such as speculative decoding for faster processing, with robust customization options, making it a versatile solution for enterprises aiming to leverage AI-driven insights across a wide range of applications.
Current Variants
Use-when guidance is derived from seed capabilities, context, release, and replacement fields.
Use when the workload needs 200k context, 102B parameters, and function calling.
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| Upstage Solar Pro 3 | Use when the workload needs 200k context, 102B parameters, and function calling. | 2026-01 | 200k context102B parametersfunction calling | Current |
Release Timeline
1 release groupSpecifications(1 models)
| Model | Released | Context | Parameters | Fn Calling |
|---|---|---|---|---|
| Upstage Solar Pro 3 | 2026-01 | 200k | 102B | Yes |
Frequently Asked Questions
- What is Solar Pro used for?
- Solar Pro is used for agent workflows and tool use, coding, and structured outputs. The family description and listed model capabilities point to those workloads as the best fit.
- How does Solar Pro compare to Solar 0?
- Solar Pro by Upstage is strongest where you need agent workflows and tool use, while Solar 0 by Upstage is the closest related family to check for adjacent model selection. Solar Pro has 1 listed variant and reaches up to 200k context, while Solar 0 reaches up to 4k context, so compare the specs and pricing tables before choosing a production model.
- Which Solar Pro model should I use?
- If price is the main constraint, use the pricing table first because Solar Pro does not have complete provider pricing in the local data. For the most capable/latest local choice, evaluate Upstage Solar Pro 3 with 200k context and function calling.
