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Balanced — strong quality at a mid priceCommercial API
Solar Pro 4 Pricing
Upstage · upstage-solar-pro4
Input / 1M tokens
$0.150
Output / 1M tokens
$0.600
Context window
524,288 tokens
≈ 699 pages of text
Max output
131,072 tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.0004
1,000 requests / month$0.42/mo10,000 requests / month$4.20/mo100,000 requests / month$42.00/moEstimate your own workloadOpens the calculator with Solar Pro 4 preloaded — adjust volume and token counts there.
Price history
List price per 1M tokens since we started tracking in Aug 2026. Each step marks a price change — hover a point for the exact date and rate.
What it excels at
Supports 512k context and 128k output at very low cost, suitable for long-document processing and high-volume workloads.
The business tradeoff
Reasoning performance and third-party tooling lag behind leading flagships from larger providers.
Cheaper from Upstage
Head-to-head
Vendor list rates, as of Oct 20, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.