512K
text
text
Supported
About this model
Solar Pro 4 is Upstage's flagship language model built for complex agentic workflows and long-running professional tasks. It is designed to reason across large documents, execute multi-step tool-driven workflows, work with terminal environments, and produce reliable business deliverables across extended sessions. With a 524K-token context window and up to 128K output tokens, Solar Pro 4 can process multiple reports, contracts, datasets, and other large inputs within a single workflow. It supports configurable reasoning effort, function calling, structured outputs, and strong English, Korean, and Japanese capabilities, making it suitable for enterprise agents, coding, document analysis, research, information extraction, and complex workflow automation.
Input modalities
text
Accepted as model input
Providers
Available routing options for this model through OneInfer.
Input tokens
$0.090 / 1M tokens
Output tokens
$0.360 / 1M tokens
Routing
OneInfer optimized
Pricing
Current OneInfer pricing for this model.
| Usage | Price |
|---|---|
| Input tokens | $0.090 / 1M tokens |
| Output tokens | $0.360 / 1M tokens |
| Cached input tokens | $0.018 / 1M tokens |
Performance & Benchmarks
Independent evaluations and live cluster operational metrics
We haven’t measured this model yet. Published academic results are under Academic Evaluations.
API Guide
- 1
Generate your access token
Use your API key to generate the JWT access token required by the Models API.
- 2
Add the JWT token
Copy the generated JWT token and replace
JWT_TOKENin the example below. - 3
Check your credits
If your balance is too low, before calling the model.
- 4
Run the API example
Choose your preferred language, copy the example, and send your first model request.
curl https://api.oneinfer.ai/v1/ula/chat/completions \ -H "Authorization: Bearer $JWT_TOKEN" \ -H "Content-Type: application/json" \ -d '{ "model": "upstage/solar-pro-4", "messages": [ { "role": "user", "content": "Hello!" } ] }'
Community Model Reviews & Ratings
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