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Upstage: Solar Pro 4

upstage/solar-pro4

Solar Pro 4 is Upstage's cost-efficient large language model, featuring a 524K context window. It is built for long-horizon tasks and agentic workflows, with strong capabilities in office productivity, document-intensive...

Pricing

Input$0.0630 /M
Output$0.2520 /M
Cache read$0.0126 /M

Specs

Context length524.3K tokens
Max output131.1K tokens
Inputtext
Outputtext

Quickstart

Point the OpenAI SDK at https://tokenroute.app/api/v1 and use a TokenRoute API key.

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

Supported parameters

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