Solar Pro 4
NEWUpstage · Proprietary · Released Aug 10, 2026 · upstage/solar-pro4
524K contextToolsReasoningStructured outputPrompt caching
Available from 1 providerUSD / MTOK · VERIFIED 4 MINUTES AGO
EST. MONTHLY COSTclick a row for detail · click headers to sort
| PROVIDER | INPUT | OUTPUT | CACHE | CONTEXT | QUANT | TTFT | TPS | UPTIME |
|---|---|---|---|---|---|---|---|---|
| UPUpstage1ST PARTY | $0.03 | $0.12 | $0.006 | 524K | — | 3.3s | 19 tok/s | 100.0% |
TTFT/TPS: median (P50) over trailing 72h · chat10k profile (~10K in / 200 out) · measured via OpenRouter routing · methodology v1.1 · measured 43 hours ago
Pricing variants · USD / MTok in / out
STANDARD
$0.03 / $0.12
per MTok in / out
CACHE READ $0.006
About
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...
Specifications
Context window524,288
Max output131,072
Modalities intext
Modalities outtext
LicenseProprietary
ReleasedAug 10, 2026
TokenizerOther
Related
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[](https://modelindex.ai/models/upstage/solar-pro4)Sources
OpenRouter API4 minutes ago
AGGREGATORModelIndex benchmarks43 hours ago
MEASUREDVerified 4 minutes ago · list prices, not negotiated rates.