HASTATAgent stack guide solar-pro
Solar Pro 4
Upstage's flagship model, specialized for agentic use
Fresh · fetched 2026-08-17T02:11:57.739Z · Models.dev(opens in a new tab)
Minimum context512K
Output128K
Providers5
CapabilitiesTool calling, Reasoning
Provider offers
| Providers | Input / 1M | Output / 1M | Cache read / 1M | Context / output | Updated |
|---|---|---|---|---|---|
 NanoGPTupstage/solar-pro4 | $0.030 | $0.12 | $0.006 | 512K | 2026-08-06 |
 OpenRouterupstage/solar-pro4 | $0.030 | $0.12 | $0.006 | 512K | 2026-08-10 |
 LLMTRupstage/solar-pro4 | $0.030 | $0.12 | Unavailable | 512K | 2026-08-06 |
 Upstagesolar-pro4 | $0.30 | $1.20 | $0.060 | 512K | 2026-08-06 |
 Kilo Gatewayupstage/solar-pro4 | $0.30 | $1.20 | $0.060 | 512K | 2026-08-10 |
Lowest reported provider price in USD per 1M tokens; unavailable is not free. Provider documentation remains authoritative. Catalogue presence is not an uptime, security, or quality endorsement.
Source metadata and limitations
Capabilities are source-reported. Tool calling does not prove quality in a particular harness. Prices and limits can change.
Modalities: text → text