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Upstage: Solar Pro 4
upstage·upstage/solar-pro4-2·GA·Closed·solar series·NEW
Solar Pro 4 is a large language model from Upstage. It is suited for agentic workflows, office productivity, document-intensive work, and coding.
At a glance
Reference price$0.30 / $1.20 per 1M
Cache read $0.06 · Kilo Gateway
Lowest paid$0.30 / $1.20
Kilo Gateway Gateway
Context524,288
Output limit131,072
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ TemperatureAttachments
Modalities
Text
Knowledge cutoff—
Released / updated2026-08-10 / 2026-08-10
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 1 providers1 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Kilo Gateway upstage/solar-pro4 | Gateway | $0.30 | $1.20 | $0.06 | — | 524,288 | 131,072 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1Kilo Gateway$91.20
The cheapest paid channel is the only channel.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
effort = noneeffort = high
Related models
DeepSeek V4 Flashcheaper alternative$0.14 / $0.28GPT-5 Nanocheaper alternative$0.05 / $0.40MiMo-V2.5cheaper alternative$0.14 / $0.28Gemini 2.5 Flash-Litecheaper alternative$0.10 / $0.40
Price historyone sample accumulated per data sync
Input listOutput listMin blended