Abacus.AI: Gemini 3.1 Pro swapped for Gemini 4 Argon in Basic plan
What happened
Between the Oct 12, 2026 and Oct 19, 2026 captures of Abacus.AI's pricing page, Pulse recorded one change: Basic plan's included LLM list swapped Gemini 3.1 Pro for Gemini 4 Argon (also reflected in the sign-up modal model list); all other models, plans, and prices unchanged. In detail: Basic plan's included LLM list swapped Gemini 3.1 Pro for Gemini 4 Argon (also updated in the sign-up modal's model list); all other models, plans, and prices unchanged. Pulse files it as a product change (feature change) with a neutral direction. The current page lists Basic at $10 and Pro at $20.
It lands 21 days after Abacus.AI's previous change, "Abacus.AI upgrades Basic plan: Opus 5.5 and GPT Sol 6 now included" (Sep 28, 2026). Abacus.AI has been tracked since 2026-04-26.
In the same window Alteryx and Databricks also changed their AI & Machine Learning pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.
- Basic, Pro · FeaturereplacedGemini 3.1 ProGemini 4 Argon
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Basic, Pro | Feature | Gemini 3.1 Pro | Gemini 4 Argon | replaced |
Values as written on Abacus.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 Abacus.AI's pricing page (abacus.ai) from Oct 12, 2026 and Oct 19, 2026; the change is marked around the middle of the page, where "Gemini 3.1 Pro" becomes "Gemini 4 Argon".
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The two full-page captures with this change marked up are free with an account.
Abacus.AI, the last 90 days
Full history- Oct 19, 2026improvedAbacus.AI: Gemini 3.1 Pro swapped for Gemini 4 Argon in Basic plan · this change
- Sep 28, 2026improvedAbacus.AI upgrades Basic plan: Opus 5.5 and GPT Sol 6 now included
Across AI & Machine Learning in the same window
All AI & Machine Learning changes- AlteryxOct 5Alteryx adds Agent Studio and MCP Server to Professional and Enterprise
- AlteryxMay 25Alteryx rebrands AI Copilot to Ask Alteryx across plans
- DatabricksApr 6Databricks Slashes Operational Database Pricing by 77%
- DatabricksApr 6Databricks removes Online Tables from AI pricing lineup
- DatabricksApr 4Databricks launches AgentBricks brand and shifts to Compute Unit billing
Questions about this change
Did Abacus.AI raise prices in October 2026?
No list-price increase was recorded between Oct 12, 2026 and Oct 19, 2026. The change Pulse detected was a product change: feature change.
What changed on Abacus.AI's pricing page between Oct 12, 2026 and Oct 19, 2026?
Basic, Pro feature: Gemini 3.1 Pro → Gemini 4 Argon, replaced. Pulse compared the captures it took on Oct 12, 2026 and Oct 19, 2026; the before/after table above lists each item as written on the page.
How often does Abacus.AI change its pricing?
Pulse recorded 1 other pricing-page change for Abacus.AI in the 90 days before this one; the previous change was "Abacus.AI upgrades Basic plan: Opus 5.5 and GPT Sol 6 now included" on Sep 28, 2026; Abacus.AI has been tracked since 2026-04-26.