Providers

API providers, route pricing, availability, and recent reliability signals.

Performance

Latency, throughput, and reliability signals from recent traffic.

Pricing

Effective prices over the last 30 days, with current provider list prices for context.

Benchmarks

Activity

Daily gateway activity over the last 30 days, with current UTC-day pace projection.

Apps Using This Model

Public apps observed in gateway usage for this model.

Model Uptime

Uptime trend for this model over the last 24 hours.

Quickstart

Start calling this model with endpoint-specific examples.

About

Key dates, capabilities, and model metadata.

Subscriptions

Commercial plans and bundled access that currently include this model.

Solar Pro 4 Pricing, Benchmarks & Providers | Phaseo

Upstage: Solar Pro 4

Chat Compare

Solar Pro 4 is Upstage's agentic language model for multi-step tool use, terminal tasks, long-document reasoning, and multilingual work.

Providers

API providers, route pricing, availability, and recent reliability signals.


Upstage	$0.03	$0.12	$0.006	--	--	--

Pricing

Weighted provider pricing over the last 30 days, with recent route pricing history below.

Effective pricing

Weighted by routed usage over the last 30 days; external and non-routable providers are excluded.

Weighted input price

Per 1M tokens

Weighted output price

Per 1M tokens


Upstage	$0.03	$0.12	--

No 7-day effective pricing is available for the selected service tier.

Quickstart

Start calling this model with endpoint-specific examples.

Get an API key

Create an API key inSettingsKeysand store it asPHASEO_API_KEY

Keep it server-side, never commit it, and rotate it immediately if exposed.

Send the request

Choose a supported endpoint, pick a main language, then select the example style you want to copy.

Supported endpoints

Supported API reference routes for this model.

POST

/v1/responses

Responses API reference

POST

/v1/chat/completions

Chat Completions API reference

POST

/v1/messages

Messages API reference

Streaming

import Phaseo from '@phaseo/sdk';

const client = new Phaseo({
  apiKey: process.env.PHASEO_API_KEY,
});

const response = await client.generateResponse({
    "model": "upstage/solar-pro-4",
    "input": "Give me one fun fact about cURL."
});

const outputText = response.output
  ?.flatMap((item) => item.content ?? [])
  .find((item) => item.type === "output_text")
  ?.text;

console.log(outputText ?? response);

Accepted IDsClick to use and copy

Parameters

Aggregated across active providers for the responses route.

Routing will select a compatible provider when a parameter narrows availability, so this list stays model-facing instead of provider-facing.

View all parameters

Parameter	Description
`temperature`	Controls how random token selection can be.
`top_p`	Applies nucleus sampling by limiting candidates to a probability mass threshold.
`max_tokens`	Caps output length on endpoints and providers that use the max_tokens field name.
`tool_choice`	Controls which tool, if any, the model should call.
`tools`	Defines callable tools or functions the model can invoke.
`response_format`	Requests plain text, JSON, or schema-constrained output formats.
`reasoning`	Provider-specific reasoning configuration for reasoning-capable APIs.

Docs:TypeScript SDK Responses API

Providers

Performance

Pricing

Benchmarks

Activity

Apps Using This Model

Model Uptime

Quickstart

About

Subscriptions

Providers

Performance

Pricing

Benchmarks

Activity

Apps Using This Model

Model Uptime

Quickstart

About

Subscriptions

Upstage: Solar Pro 4

Providers

Performance