Upstage: Solar Pro 4 Thinking
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.
Modalities
Text → Text
Input / output price
$0.195 / $0.780 per 1M
Context
524K · max output 131K
Capabilities
Pricing
Billed per token actually used and deducted from your credits.
| Item | USD per 1M tokens |
|---|---|
| Input | $0.195 |
| Output | $0.780 |
| Cached input | $0.039 |
Calculator
Drag the sliders to estimate what this model will cost.
- Per request
- $0.00121
- Per day
- $0.6045
- Per month (30 days)
- $18.14
Solar Pro 4 Thinking: input $0.195/M · output $0.78/M · cached input $0.039/M
curl https://api.geniusrelaygpt.com/v1/chat/completions \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "solar-pro4:thinking", "max_tokens": 800,
"messages": [{"role": "user", "content": "…"}]}'Code samples
OpenAI-compatible. Set the base URL to https://api.geniusrelaygpt.com/v1 and the model to solar-pro4:thinking.
curl https://api.geniusrelaygpt.com/v1/chat/completions \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "solar-pro4:thinking",
"stream": true,
"messages": [{"role": "user", "content": "Hello"}]
}'Use it in a client: Cursor · Cline · SillyTavern · Codex
Parameters
Common OpenAI parameters can be passed as-is.
temperaturetop_pmax_tokensstreamstoppresence_penaltyfrequency_penaltyseedRelated models
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FAQ
- How is Solar Pro 4 Thinking billed?
- Input is $0.195 and output is $0.780 per million tokens; cached input is $0.039. The charge for every request is listed in Usage Logs in the console.
- How long is the context window?
- 524K tokens. In a long conversation every turn is billed for the full input, so keep the history under control.
- Does it support streaming?
- Yes. Add
"stream": trueto the request to receive server-sent events in the OpenAI format.