Solar Pro 4 is a large language model from Upstage with a 524K token context window designed for agentic workflows, document processing, office tasks, and code generation.
- Strengths
- Handles extended contexts and large documents without truncation, making it well-suited for analyzing lengthy source material and maintaining conversation history across complex multi-step tasks.
- Best for
- Agentic workflows, document-intensive applications, office productivity tools, and coding tasks where context length and reasoning over large information sets matter.
- Limitations
- A newer release that supersedes Solar Pro 3; assess performance trade-offs if you were using that model and need to evaluate whether the expanded context window justifies any differences in speed or resource usage for your workload.
Input / 1M
$0.03
Output / 1M
$0.12
Cached input / 1M
$0.006
Context window
524K
Price history
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 11 Aug 2026 | $0.03 | $0.12 | $0.006 | Imported from OpenRouter | openrouter.ai |