How much does Upstage: Solar Pro 4 cost per 1M tokens?

Upstage: Solar Pro 4 costs $0.090 per 1M input tokens and $0.360 per 1M output tokens on the standard tier. Cached input is $0.018 per 1M.

What is Upstage: Solar Pro 4's context window?

Upstage: Solar Pro 4 accepts up to 524,288 tokens in a single request, and can return up to 131,072 output tokens.

Is there a cheaper OpenRouter model than Upstage: Solar Pro 4?

Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.090 for Upstage: Solar Pro 4, with a 8,192 token context window.

Where does this Upstage: Solar Pro 4 price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Upstage: Solar Pro 4 pricing

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… Upstage: Solar Pro 4 from OpenRouter costs $0.090 per 1M input tokens and $0.360 per 1M output tokens. Cached input is $0.018 per 1M. Context window 524,288 tokens.

API id upstage/solar-pro4 · OpenRouter · source · updated 2026-09-25 · general-purpose

$0.090

Input / 1M tokens

$0.360

Output / 1M tokens

$0.018

Cached input / 1M

524K

Context window

Upstage: Solar Pro 4 specifications

Provider: OpenRouter
API id: upstage/solar-pro4
Model type: general-purpose
Context window: 524K tokens
Max output: 131K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

What Upstage: Solar Pro 4 costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0003
Document summary	50,000	2,000	$0.0052
1M tokens in, 200K out	1,000,000	200,000	$0.16

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Upstage: Solar Pro 4 price history

Recorded	Input /1M	Output /1M
2026-09-11	$0.090	$0.360
2026-08-27	$0.030	$0.120

Common questions

How much does Upstage: Solar Pro 4 cost per 1M tokens?: Upstage: Solar Pro 4 costs $0.090 per 1M input tokens and $0.360 per 1M output tokens on the standard tier. Cached input is $0.018 per 1M.
What is Upstage: Solar Pro 4's context window?: Upstage: Solar Pro 4 accepts up to 524,288 tokens in a single request, and can return up to 131,072 output tokens.
Is there a cheaper OpenRouter model than Upstage: Solar Pro 4?: Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.090 for Upstage: Solar Pro 4, with a 8,192 token context window.
Where does this Upstage: Solar Pro 4 price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

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Other OpenRouter models

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