Microsoft Copilot vs Upstage Solar (솔라) comparison

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At a glance

Item	MMicrosoft CopilotVisit site	Upstage Solar (솔라)Visit site
Starting price	$9.99+Official USD price	Check siteNot applicable
Free tier	Free plan available	Paid only
Korean support	Good	Good
Main models	OpenAI GPT-5 family (Smart/Think Deeper) GPT-5.5/Claude selectable for business MAI in-house models (image/voice)	Solar Pro 4 (flagship) Solar Mini 4 (lightweight) Solar Decide (decision model, beta) Document Parse Embed 2 (Solar Pro 3/Pro 2/Mini end on 2026-10-30)
Type	AI services	AI services
Category	Chatbot/Assistant, Writing/Productivity	Developer API
Company	Microsoft, United States	Upstage (업스테이지), South Korea
Plans	Free M365 Personal $9.99 Family $12.99 Premium $19.99 Pro $99.99 For business: Copilot Business $21 (annual), Enterprise $30 (annual)	API pay-as-you-go (per 1 million tokens, excl. VAT): Solar Pro 4 list price input $0.30 output $1.20 (promotion $0.15/$0.60 from October 20), Solar Mini 4 list price input $0.10 output $0.40 (50% off until October 22), Solar Decide (beta) input $0.10, output free Prepaid credits, commitment plan ($100+/mo), Enterprise by inquiry
Pros	Works directly with Windows, Word and Excel Latest-level models available for free	Official support for Korean, English and Japanese 512K long context, up to 128K output API input is not used for training and on-premises deployment is possible Enterprise tools such as document parsing and OCR in one place
Cons	Office integration features need a Microsoft 365 subscription Weak personality as a standalone chatbot	No chat app for general users (API only) Parameter count not disclosed The existing Solar Pro 3, Pro 2 and Mini end on October 30, so migration is needed Promotional prices change often

Prices and benefits may change. Check the official site before you pay.

Prices converted at 1 USD = ₩1,327.84 (2026-10-20). Original price shown in brackets. Taxes as listed by each provider.

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