Solar Pro 4 is a large language model from Upstage. It is suited for agentic workflows, office productivity, document-intensive work, and coding.
Tested on 8 benchmarks. Top scores: Chatbot Arena Elo — Overall (1386.2%), Chatbot Arena Elo — Coding (1370.2%), Artificial Analysis · GPQA Diamond (89.1%).
Chatbot Arena overall Elo rating. Crowdsourced human preference ranking from blind head-to-head comparisons across all topics.
Chatbot Arena coding Elo. Human preference ranking specifically for coding tasks and technical questions.
- Typetext
- Context524K tokens (~262 books)
- ReleasedAug 2026
- LicenseProprietary
- StatusActive
- Cost / Message~$0.001
Frequently Asked Questions
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- Solar Pro 4 by upstage. Not enough public benchmark scores to rank yet.
- List price $0.0900 input · $0.36 output per 1M tokens (as of 2026-10-05).
- Sold by 2 providers (as of 2026-10-05): Upstage $0.0900 in / $0.36 out · Upstage $0.0900 in / $0.36 out. Every provider
How to cite · data as of 2026-10-05
Solar Pro 4 · benchmarks, pricing and providers. BenchGecko, data as of 2026-10-05. https://benchgecko.ai/model/solar-pro4
Credit "Source: BenchGecko" with a link. Prices per provider and Gecko Tests are BenchGecko data (CC BY 4.0); benchmark scores keep their original source, listed in the JSON. JSON · llms.txt · MCP