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Solar Pro 4 Pricing

Upstage · upstage-solar-pro4

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Input / 1M tokens
$0.090
Output / 1M tokens
$0.360
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)$0.0003
1,000 requests / month$0.252/mo10,000 requests / month$2.52/mo100,000 requests / month$25.20/mo
Estimate 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.

Same tier from other providers

GPT-5.4 MiniOpenAI$0.0027/ typical requestClaude Sonnet 4.6Anthropic$0.0096/ typical requestLlama 4 MaverickMeta$0.0005/ typical request

Head-to-head

Solar Pro 4 vs GPT-5.4 Mini →Solar Pro 4 vs Claude Sonnet 4.6 →Solar Pro 4 vs Llama 4 Maverick →

Vendor list rates, as of Sep 11, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.