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Upstage · Language model

Solar Pro 3

upstage/solar-pro-3
  • Language
Released Jan 27, 2026

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...

Specifications

Context window
131,072 tokens
Max output
117,964 tokens
Input
text
Output
text
Reasoning effort
high, medium, low, minimal, none
Tokenizer
Other

Supported parameters

Accepted by the model and forwarded as-is by the gateway.

  • frequency_penalty
  • max_tokens
  • parallel_tool_calls
  • presence_penalty
  • reasoning
  • reasoning_effort
  • response_format
  • structured_outputs
  • temperature
  • tool_choice
  • tools
  • top_p

Use it

POST /api/v1/chat/completions · MCP chat · full reference

curl https://omnirail.org/api/v1/chat/completions \
  -H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
  -d '{"model":"upstage/solar-pro-3","messages":[{"role":"user","content":"Hello"}],"max_tokens":300}'