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Upstage: Solar Pro 4 API Pricing
Upstage: Solar Pro 4 costs $0.030 per 1M input tokens and $0.120 per 1M output tokens (cache reads: $0.0060). Context window: 524K. Prices verified 2026-08-23 · source
Input / 1M tokens
$0.030
Output / 1M tokens
$0.120
Context window
524K
Max output
131K
What would Upstage: Solar Pro 4 cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $0.72 |
| Coding agent | 5,000 | 8,000 / 2,000 | $2.40 |
| RAG pipeline | 30,000 | 4,000 / 500 | $5.40 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $1.44 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About Upstage: Solar Pro 4
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...