Model · Language model
Solar Pro 4
Upstage's August 2026 Solar Pro 4 agentic release with 512K context, served as a managed API with no public artifact of any kind.
- Developer
- Upstage
- Distribution
- Developer API
- Artifact licensing
- Proprietary access
- License scope
- Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.
- Licenses
- Proprietary
- Boundary
- This record represents the August 2026 Solar Pro 4 line served as the solar-pro4 API model with 512K context and 128K max output. Earlier Solar generations, other Upstage lines, and the platform itself are separate boundaries.
Risk statements
Not yet examined.
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