Upstage: Solar Pro 3
upstage/solar-pro-3- Modalities
- text->text
- In / out price
- $0.15 / $0.6
- Context
- 131K
- Released
- Jan 27, 2026
- Knowledge cutoff
- —
per 1M
Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency. Optimized...
Supported parameters
frequency_penaltyFrequency penalty
Lowers the chance of a token in proportion to how often it already appeared.
include_reasoningInclude reasoning
Include a reasoning summary in the response.
max_tokensMax tokens
Upper bound on generated tokens. Output stops at the limit.
parallel_tool_callsParallel tool calls
Allow more than one tool call in the same turn.
presence_penaltyPresence penalty
Lowers the chance of any token that has already appeared.
reasoningReasoning
Enable or configure reasoning. The fields differ by model.
reasoning_effortReasoning effort
How much compute to spend reasoning. Often low, medium, or high.
response_formatResponse format
For example json_object or json_schema, to constrain the shape.
structured_outputsStructured outputs
Generate a parseable structure that follows a JSON Schema.
temperatureTemperature
Sampling temperature. Lower is steadier, higher is more varied. Often 0 to 2.
tool_choiceTool choice
Whether to call a tool: auto, none, or a named function.
toolsTools
Function definitions the model may call via tool_calls.
top_pTop-p
Sample only from tokens whose cumulative probability reaches top_p.