Flash — fastest and cheapest, lighter reasoningCommercial API

Solar Pro 3 Pricing

Upstage · upstage-solar-pro-3

Input / 1M tokens

$0.150

Output / 1M tokens

$0.600

Context window

128k tokens

≈ 171 pages of text

Max output

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What it costs in practice

Typical request (1,200 in + 400 out tokens)$0.0004

1,000 requests / month$0.42/mo 10,000 requests / month$4.20/mo 100,000 requests / month$42.00/mo

Estimate your own workloadOpens the calculator with Solar Pro 3 preloaded — adjust volume and token counts there.

Price history

Only one price point recorded so far.

The staircase chart appears once a price change is detected.

Pricing and specs for this model are auto-synced from OpenRouter, but it isn't one of our editorial picks yet — no “what it excels at” write-up or business tradeoff notes. Any tier badge above is estimated from price.

Same tier from other providers

GPT-5.4 NanoOpenAI$0.0007/ typical request Claude Haiku 4.5Anthropic$0.0032/ typical request Gemini 3.5 FlashGoogle$0.0054/ typical request

Head-to-head

Solar Pro 3 vs GPT-5.4 Nano →Solar Pro 3 vs Claude Haiku 4.5 →Solar Pro 3 vs Gemini 3.5 Flash →

Vendor list rates, as of Jun 15, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.