Solar Pro 4

Overview

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... Solar Pro 4 is served through the PARROTSIGHT unified API at Upstage's list price, with the same authentication, metering and regional pinning (MY / SG / ID) as every native model. No separate provider account is required.

• 524K token context
• OpenAI-compatible endpoint — migrate with a two-line change
• Streaming (SSE) supported for all text outputs
• Billed at provider list price, metered per token

Capabilities

API

curl -X POST https://api.parrotsight.com/v1/chat/completions \
  -H "Authorization: Bearer $PS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"upstage/solar-pro4","messages":[{"role":"system","content":"You are a concise bilingual assistant."},{"role":"user","content":"Summarise this quarter's platform metrics in Malay and English."}],"stream":true}'

Version history

1. v2026.8Latest2026-08-10

   Added to the PARROTSIGHT catalogue at Upstage list pricing.