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Upstage: Solar Pro 4
Upstagetext8.4 / 10 Overall Rating
Solar Pro 4 is a text LLM from Upstage featuring a 524K context window and a 131K output token limit. At $0.03 per million input tokens, it is significantly cheaper than GPT-4o and Claude 3.5 Sonnet. It targets high-volume document processing, long-horizon agentic workflows, and enterprise text tasks.
Context Window
524K
Knowledge Cutoff
2025
Max Output
16K
License
Proprietary
Where it Excels (Pros)
- 524K token context window
- Extremely low API pricing
- 131K max output tokens
Limitations (Cons)
- Lacks Claude 3.5 coding depth
- Text-only model without vision
Benchmark Breakdown
Reasoning (MMLU)82%
Coding (HumanEval)78%
Mathematics (MATH)76%
Long-Context Retrieval95%
Pricing Matrix
Input cost / 1M tokens$0.03
Output cost / 1M tokens$0.12
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