Solar Pro 4on Krater.ai
Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window. It is built for long-horizon tasks and agentic workflows, with strong capabilities in office productivity, document-intensive
Released August 10, 2026
Specifications
Solar Pro 4 at a glance
Context
524.3K tokens
Max output
131.1K tokens
Input
Text
Output
Text
Input price
$0.03 / 1M
Output price
$0.12 / 1M
Capabilities
What it is good at
Catalog capabilities
- Generates text responses
- Supports tool calling
- Supports structured outputs
Good for
Benchmarks
Catalog data, not Krater benchmarks.
Coding index score
52.7
Agentic index score
33.6
Intelligence index score
41.6
Design Arena 3d rank
#59
Design Arena uicomponent rank
#61
Compare
Compare Solar Pro 4
Solar Pro 4 vs Solar Pro 3
Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model.
Open comparisonSolar Pro 4 vs Solar Pro 3 (free)
Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model.
Open comparisonSolar Pro 4 vs DeepSeek V4 Pro 0423
V4 Pro is a large-scale Mixture-of-Experts model from DeepSeek with 1.6T total parameters and 49B activated parameters, supporting a 1M-token context window.
Open comparisonFAQ
Questions about Solar Pro 4
Clear answers based on the model catalog and Krater access.
Use Solar Pro 4 in your API
Connect with Krater's unified API.