Perplexity AI swaps Gemini 3.1 Pro for Gemini 3.7 Flash in AI model lineup
What happened
Between the Aug 10, 2026 and Aug 17, 2026 captures of Perplexity AI's pricing page, Pulse recorded one change: AI model lineup swapped Gemini 3.1 Pro for Gemini 3.7 Flash (tagged 'New') in the multi-model showcase; plan prices, credits, and plan features are unchanged. Pulse files it as a product change (feature change). Pulse's latest capture (Nov 15, 2026) lists Pro at $17 and Max at $167.
It lands 6 days after Perplexity AI's previous change, "Perplexity AI: Pro/Max plan copy genericized, memory now called out" (Aug 11, 2026). Before that Pulse recorded "Perplexity AI refreshes AI lineup: Claude Sonnet 5 and GPT-5.6 Terra join Pro plan" (Jul 13, 2026). Perplexity AI has been tracked since 2026-06-27.
In the same window Synthesia, Read AI, Topaz Labs, Together AI and TestFit also changed their AI & Machine Learning pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.
- ReplacedProFeatureGemini 3.1 ProGemini 3.7 Flash
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Pro | Feature | Gemini 3.1 Pro | Gemini 3.7 Flash | Replaced |
Values as written on Perplexity AI'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 Perplexity AI's pricing page (www.perplexity.ai) from Aug 10, 2026 and Aug 17, 2026; the change is marked around the middle of the page, where "Gemini 3.1 Pro" becomes "Gemini 3.7 Flash".
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The two full-page captures with this change marked up are free with an account.
Perplexity AI, the last 90 days
Full history- Sep 23, 2026ImprovementPerplexity AI swaps GPT-5.6 Terra for GPT-6 Sol in multi-model answers
- Sep 5, 2026ImprovementPerplexity AI bumps Gemini model to 3.8 Flash in AI lineup
- Aug 30, 2026ImprovementPerplexity AI refreshes AI roster: GLM jumps to 5.3, Kimi K3 tagged US-based
- Aug 17, 2026Feature changePerplexity AI swaps Gemini 3.1 Pro for Gemini 3.7 Flash in AI model lineup This change
- Aug 11, 2026PackagingPerplexity AI: Pro/Max plan copy genericized, memory now called out
- Jul 13, 2026ImprovementPerplexity AI refreshes AI lineup: Claude Sonnet 5 and GPT-5.6 Terra join Pro plan
Across AI & Machine Learning in the same window
All AI & Machine Learning changes- SynthesiaNov 9Synthesia swaps Syren AI time cap for tiered video quotas, cuts Basic assets
- Read AINov 9Read AI: EU & CA hosting added to Enterprise+ plan
- Topaz LabsNov 9Topaz Labs ends web sale: Pro back to $599/yr, Video $299, Image $199
- Together AINov 9Together AI hikes Qwen3.7-Max to $2.50/$7.50, cuts six models, adds Kimi K3.1 Pro
- TestFitNov 9TestFit adds $75/month Urban Planner plan with unlimited users
Questions about this change
Did Perplexity AI raise prices in August 2026?
No list-price increase was recorded between Aug 10, 2026 and Aug 17, 2026. The change Pulse detected was a product change: feature change.
What changed on Perplexity AI's pricing page between Aug 10, 2026 and Aug 17, 2026?
Pro feature: Gemini 3.1 Pro → Gemini 3.7 Flash, replaced. Pulse compared the captures it took on Aug 10, 2026 and Aug 17, 2026; the before/after table above lists each item as written on the page.
How often does Perplexity AI change its pricing?
Pulse recorded 2 other pricing-page changes for Perplexity AI in the 90 days before this one; the previous change was "Perplexity AI: Pro/Max plan copy genericized, memory now called out" on Aug 11, 2026; Perplexity AI has been tracked since 2026-06-27.