Solar Pro 3

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 for Korean with English and Japanese support.

ChatUpstage131k tokens$0.1635 / $0.654 · 1M

upstage/solar-pro-3

Context
131k tokens
Completion cap
117,964
Tools
Yes
JSON
Yes
Released
2026-01-27

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "upstage/solar-pro-3",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is Solar Pro 3?
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 for Korean with English and Japanese support. Solar Pro 3 runs on the Geek Hub API (OpenAI-compatible). Model id: upstage/solar-pro-3.
Is Solar Pro 3 free?
No. Input is $0.1635 per 1M tokens and output is $0.654 per 1M tokens on Geek Hub (markup included).
What is the context length of Solar Pro 3?
Solar Pro 3 has a 131k tokens context window. It supports up to 117,964 completion tokens.
Does Solar Pro 3 support tool calling and structured outputs?
Solar Pro 3 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
When was Solar Pro 3 released?
Solar Pro 3 was released on 2026-01-27.

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