Solar Pro 4 Thinking

upstage/solar-pro4:thinking

Upstage's Solar Pro 4 with reasoning enabled for harder agentic workflows, document-intensive work, coding, planning, and analysis across a 524K-token context window.

Reasoning
Tool calling
Structured output

Chat with this model Create an API key

Pricing

Includes our margin. Charged per request from your balance.

Input: $0.033 per 1M tokens
Output: $0.132 per 1M tokens
Cache read: $0.0066 per 1M tokens
Typical message: $0.000082

Details

Provider: Upstage
Context: 524K tokens
Max output: 131K tokens
Added: Aug 11, 2026
Reasoning effort: none, low, medium, high

Use it from the API

Replace $HIDE_API_KEY with a key from the Developers page. Base URL https://hide.st/api/v1.

curl https://hide.st/api/v1/chat/completions \
  -H "Authorization: Bearer $HIDE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "upstage/solar-pro4:thinking",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

Pricing

Details

Use it from the API

Search