Upstage
Solar Mini 4
Solar Mini 4 is a Upstage model with Not verified context, $0.10 in / $0.40 out per million tokens, last verified October 2, 2026. Open weights: not verified. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.
Solar Mini 4 is Upstage’s 35B/3B compact text model for Korean, English and Japanese agentic work, with a publisher-advertised 512K context.
Recorded profile verification October 2, 2026Individual provider fields may change
| Specification | Solar Mini 4 |
|---|---|
| Provider | Upstage |
| Tier | Budget |
| Context window | Not verifiedUnverified |
| Max output | 131K |
| Input / 1M tokens | $0.10 |
| Output / 1M tokens | $0.40 |
| Weights | Not verifiedUnverified |
| Parameters | 35B total / 3B active (per Upstage model specs) |
| Reasoning levels | none, minimal, low, medium, high, xhigh, max |
| Modalities | text |
| API model id | solar-mini4 |
| Released | September 22, 2026 |
Pricing tiers: Upstage direct current $0.10/$0.40 per MTok, cached input $0.01. The alias solar-mini4 resolves to solar-mini4-260922. Playground free-to-try access is separate from paid API usage. Model specs say 512K context/128K output; the Responses contract gives an exact 131,072 output ceiling.
Publisher evidence
Published benchmark results
Each result keeps its source date visible. Dates refer to source publication or capture unless the source explicitly states when it measured the result. A missing benchmark is not treated as a zero.
| Benchmark | Score | Source date | Source |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSolar Mini 4 | 24 | 2026-10-01 | Artificial Analysis · View source |
Best for
- Cost-sensitive agents
- Korean/English/Japanese
- Tool calling
Watch out
Source receipts
Catalog figures for this model were checked against the following sources.
- Upstage exact model release, alias, rounded context and current token prices (accessed 2026-10-02)
- Solar 4 model-specific effort values and disabled default (accessed 2026-10-02)
- Solar Responses exact 131,072 output ceiling; stateless and text-only contract (accessed 2026-10-02)
- Solar chat parameter and model-specific effort contract (accessed 2026-10-02)
- Upstage changelog: separate price and release transitions (accessed 2026-10-02)
- Artificial Analysis retained October 1 row; capture date (accessed 2026-10-01)
Common questions
Solar Mini 4
Answered from the verified figures on this page rather than general guidance.