Solar Pro 4
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...
ARCHITECTURE & LIMITS
BENCHMARK EVALUATIONS & CODE METRICS
Verified scores from SWE-bench and Artificial Analysis.
Independent coding benchmark evaluating syntax, algorithms, and code completion
Broad multi-domain reasoning, science, and knowledge retrieval
Autonomous multi-step tool use, API calling, and task execution
TOKEN COST CALCULATOR
Estimate production API costs for Solar Pro 4.
COMMUNITY ENGINEERING EVALUATIONS
Verified ratings across 4 core software engineering dimensions.
Refactoring accuracy, syntax correctness, and adherence to design patterns.
Zero hallucinations, strict constraint compliance, and negative prompt respect.
Time-to-first-token (TTFT) and throughput tokens per second.
Token pricing economics relative to intelligence quality and output volume.
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RECOMMENDED AGENT SKILLS FOR Solar Pro 4
boardroom
/cs:boardroom <brief> — 6-phase multi-role deliberation across the C-suite with Phase 2 isolation, critic pre-screen, and synthesis. Outputs a board memo. Use when a decision spans multiple executive domains — e.g. a pricing change touching finance, positioning, and product, or a raise-vs-cut runway call.
FREQUENTLY ASKED QUESTIONS ABOUT Solar Pro 4
What are the input and output token prices for Solar Pro 4?+
Solar Pro 4 costs $0.09 per 1M input tokens and $0.36 per 1M output tokens. Cached input reads cost $0.02 per 1M tokens.
Does Solar Pro 4 support tool calling and agent execution?+
Yes, Solar Pro 4 natively supports tool calling, parallel function execution, and structured agent workflows.
What is the context window of Solar Pro 4?+
Solar Pro 4 features an active context window of 524,288 tokens with a maximum single-turn output of 131,072 tokens.
What AI Agent Skills work best with Solar Pro 4?+
Because Solar Pro 4 is optimized for agentic tool calling and code reasoning, it pairs well with Agent Skills like Boardroom, SEO Audit, and UI/UX Pro Max.
AgenticMarket