Upstage API: Solar Pro 4 discount extended at 70% off (was reverting to standard price)
What happened
Between the Aug 31, 2026 and Sep 7, 2026 captures of Upstage's pricing page, Pulse recorded one change: Solar Pro 4 input-token promo footnote changed from "90% off until 2026-09-10, standard pricing from 2026-09-11" to "90% off until 2026-09-10, 70% off from 2026-09-11" — the discount continues instead of expiring. In detail: Solar Pro 4 input-token discount footnote changed: previously reverted to standard pricing after 2026-09-11, now continues at 70% off after that date instead of expiring. Pulse files it as a pricing change (discount change) with a neutral direction. Pulse's latest capture (Oct 26, 2026) lists Explore at $100, Build at $500, Scale at $5,000, Solar Pro 4 at $0.06 per 1M cached input tokens + $0.3 per 1M input tokens and Solar Pro 3 at $0.15 per 1M input tokens + $0.6 per 1M output tokens.
It lands 21 days after Upstage's previous change, "Upstage API ends Solar Pro 4 free period — now 90% off until Sep 10, full rates from Sep 11" (Aug 17, 2026). Before that Pulse recorded "Upstage API: File Search pricing dropped to Free + Embed trial/EOL extended" (Jul 28, 2026), "Upstage API: Embed 2 post-promo rate cut ($0.10→$0.02/1M tokens)" (Jul 13, 2026) and "Upstage API adds 10% VAT disclosure across all pricing tiers" (Jun 19, 2026). Upstage has been tracked since 2026-04-29.
In the same window OpenAI, Google, Together AI, Mistral AI and Anthropic also changed their AI & Machine Learning pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.
- Solar Pro 4 · DiscountDiscount change
Solar Pro 4 input-token discount footnote changed: previously reverted to standard pricing after 2026-09-11, now continues at 70% off after that date instead of expiring
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Solar Pro 4 | Discount | — | 70% | Discount change |
Values as written on Upstage's public pricing page in the two captures Pulse compared; where the page states no number, the cells give the wording before and after.
Evidence
The two captures Pulse comparedFull-page captures of Upstage's pricing page (www.upstage.ai) from Aug 31, 2026 and Sep 7, 2026; the change is marked near the top of the page.
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Upstage, the last 90 days
Full history- Oct 5, 2026packagingUpstage API deepens Solar Mini 4 promo to 70% off, sunsets Solar Pro 3
- Sep 28, 2026packagingUpstage API launches Solar Mini 4 at 50% off: $0.05/1M input through Oct 22
- Sep 14, 2026packagingUpstage API promo tapers to 70% off, cuts cost calculator too
- Sep 7, 2026packagingUpstage API: Solar Pro 4 discount extended at 70% off (was reverting to standard price) · this change
- Aug 17, 2026packagingUpstage API ends Solar Pro 4 free period — now 90% off until Sep 10, full rates from Sep 11
- Jul 28, 2026decreaseUpstage API: File Search pricing dropped to Free + Embed trial/EOL extended
- Jul 13, 2026decreaseUpstage API: Embed 2 post-promo rate cut ($0.10→$0.02/1M tokens)
- Jun 19, 2026packagingUpstage API adds 10% VAT disclosure across all pricing tiers
Across AI & Machine Learning in the same window
All AI & Machine Learning changes- OpenAISep 7OpenAI: Plus & Pro reasoning model upgraded to GPT-6 Astra
- GoogleSep 7Google Workspace: promo discount cut from 50% to 30%/20% off
- Together AISep 1Together AI adds Qwen3.8 Flash at $0.15/1M tokens, drops Gemma 3n E4B
- Mistral AIAug 17Mistral AI folds Education into Pro, adds bundled API credits to entry plans
- AnthropicJul 23Anthropic: Fable model + context window disclosed in comparison table
Questions about this change
Did Upstage raise prices in September 2026?
No list-price increase was recorded between Aug 31, 2026 and Sep 7, 2026. The change Pulse detected was a pricing change: discount change.
What changed on Upstage's pricing page between Aug 31, 2026 and Sep 7, 2026?
Solar Pro 4 input-token discount footnote changed: previously reverted to standard pricing after 2026-09-11, now continues at 70% off after that date instead of expiring. Pulse compared the captures it took on Aug 31, 2026 and Sep 7, 2026; the before/after table above lists each item as written on the page.
How often does Upstage change its pricing?
Pulse recorded 4 other pricing-page changes for Upstage in the 90 days before this one; the previous change was "Upstage API ends Solar Pro 4 free period — now 90% off until Sep 10, full rates from Sep 11" on Aug 17, 2026; Upstage has been tracked since 2026-04-29.