Upstage · Model identity
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...
1pricing route
What published route metadata supports
CachingReasoningStructured outputTool use
Input modalities
Text
Supported API parameters
frequency_penaltyinclude_reasoningmax_tokensparallel_tool_callspresence_penaltyreasoningreasoning_effortresponse_formatstructured_outputstemperaturetool_choicetoolstop_p
Only source-backed fields are filled
Release dateNot independently verified
Knowledge cutoffNot independently verified
Open weightsNot independently verified
OpenRouter catalog date2026-08-10
LLMPrice does not infer a release date, knowledge cutoff, or open-weight status from a model name, Hugging Face link, or pricing route.
Could this workload cost less?Compare Solar Pro 4 with cheaper models using the same workload.
Find cheaper alternatives →| Endpoint / route | Model ID | Input | Cached | Output | Context | Source |
|---|---|---|---|---|---|---|
| OpenRouterStandard | upstage/solar-pro4 | $0.09 | $0.018 | $0.36 | 524K | OpenRouter API ↗ |
1 verified price change since Aug 26, 2026
0 route availability changes recorded. No earlier prices are inferred.
Input / 1M$0.09Aug 26, 2026 → Sep 11, 2026
Output / 1M$0.36Aug 26, 2026 → Sep 11, 2026
- Sep 11, 2026OpenRouter · Standard
Input $0.03 → $0.09 · Cached input $0.006 → $0.018 · Output $0.12 → $0.36