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Upstage
Solar Pro 4 fast
upstage/solar-pro4
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...
Input / 1M
$0.15
USD per million tokens
Output / 1M
$0.60
USD per million tokens
Est. cost / token
$0.000000262
$0.26 per 1M, 3:1 mix
Context window
524K
max output 131K
Major features
CachingReasoningJSON schemaTools
Task suitability (heuristic 1–5, not a benchmark)
- coding3
- reasoning3
- math3
- summarization4
- extraction4
- classification4
- chat3
- creative3
- translation4
- vision1
- long context4
- agentic3
Price history
| Recorded | Input | Output | Cached | Source |
|---|---|---|---|---|
| 2026-11-05 03:20 | $0.15 | $0.60 | $0.030 | openrouter |
A row is added whenever a sync detects a price change. Vendor pricing source
Pricing (USD per 1M tokens)
- Input
- $0.15
- Output
- $0.60
- Cached input
- $0.030
- Blended (3:1)
- $0.26
Details
- Company
- Upstage
- Version
- 4
- Family
- Solar
- Released
- 2026-08-10
- Parameters
- Undisclosed
- Max output
- 131K
- Open weights
- No
- Inputs
- text
- Last synced
- 32 min ago