Gemini 3.1 Pro
Google's Pro model for research and reasoning, in one chat with 26 others.
Gemini 3.1 Pro at a glance
| Made by | |
|---|---|
| Released | 19 February 2026, and still marked as a preview[1] |
| Longest input | About 1M tokens[1] |
| In the Gemini app | Some access on the free plan; Google AI Pro is $19.99 a month[2] |
| In Chatly | Yes, in the Chat model picker. Chatly's note: deep research and multi-step logic. |
| Google's newest | Gemini 3.8 Flash, released 2 September 2026. Not in Chatly yet[1] |
Try it on something real
Each one opens Chatly Chat on Gemini 3.1 Pro with the request ready.
Research the market for pet insurance in the UK: size, main players and prices. Cite your sources.Plan a big goal
I want to run a half marathon in 12 weeks. I can run 5K now. Make me a week-by-week plan.Untangle a problem
Our website traffic fell 30% last month. List the likely causes in order and how to check each.A second opinion
Here is Gemini's answer. Check it and tell me what you would change:
Then put the answer to work
The same plan runs the agent behind the chat. It makes the files, not just the text, and works with Gmail, Slack and 40+ other apps.

Turn an answer into slides
A deck with real charts and speaker notes, ready to present or edit.

Write the document
Reports, proposals, contracts and invoices, formatted and ready to send.

Build the spreadsheet
Budgets, trackers and models that arrive built, filled in and charted.

Publish a website
A landing page or a full site, live on its own link from one request.

Make the images
Product shots, headshots and social posts from the top image models.

Research with sources
Deep research that reads the web for you and cites every claim.
Chatly plans
Three plans, and Teams on top: pick how long you pay for, and how many credits.
Standard
$18/ month, billed quarterly
Perfect for getting started with AI
Subscribe7K credits / month
- Flash and Pro modes
- 3 concurrent agent tasks
- 2 scheduled tasks
- Connect up to 2 apps, like Gmail and Slack
- 2 knowledge bases
- Commercial usage rights
- Build and publish websites
- Create presentation-ready slides
- Deep research with citations
- Generate docs, sheets and audio
- Generate images and videos
Professional
$36/ month, billed quarterly
More credits, more room to create
Subscribe- Flash, Pro and Ultra modes
- 5 concurrent agent tasks
- 5 scheduled tasks
- Connect up to 5 apps, like Gmail and Slack
- 5 knowledge bases
- Commercial usage rights
- Build and publish websites
- Create presentation-ready slides
- Deep research with citations
- Generate docs, sheets and audio
- Generate images and videos
- AI ad creator
- AI video editor
Ultra
$183/ month, billed quarterly
Built for power users who never hit limits
Subscribe- Flash, Pro and Ultra modes
- Unlimited concurrent agent tasks
- 25 scheduled tasks
- Connect all 40+ apps
- 25 knowledge bases
- Commercial usage rights
- Build and publish websites
- Create presentation-ready slides
- Deep research with citations
- Generate docs, sheets and audio
- Generate images and videos
- AI ad creator
- AI video editor
- Early access to new models
Chatly for Teams: pooled credits and shared seats, from three seats. Talk to us
Common questions
What is Gemini 3.1 Pro?
Gemini 3.1 Pro is Google's Pro model, released in preview on 19 February 2026, with a context of about a million tokens. Chatly notes it for deep research and multi-step logic.
Is Gemini 3.1 Pro still in preview?
Yes. Google's model list still marks Gemini 3.1 Pro as a preview. Google's newest Flash model is Gemini 3.8 Flash, which Chatly does not have yet.
Can I use Gemini 3.1 Pro without Google AI Pro?
Yes. It is in Chatly's model picker under an Chatly plan. In the Gemini app, the free plan gives limited access to 3.1 Pro and Google AI Pro costs $19.99 a month.
Can I compare Gemini 3.1 Pro with Claude or GPT?
Yes. Add a second model in the box at the top, ask, and switch between the answers in the same chat.
Is Chatly made by Google?
No. Chatly is an independent product with Gemini, Claude, GPT, Grok and other models in one place. It is not affiliated with Google.
Plans, prices and models change, so check each company's own site before you buy.
Ask your own question
The fastest way to choose is to try. Pick one model or two and ask.
Model and product names belong to their makers and are used here only to compare. Chatly is not affiliated with Anthropic, OpenAI, Google, xAI, DeepSeek, Moonshot AI or Perplexity.
Chatly on your phone and your Mac
Chatly for iPhone
Ask Claude, GPT or Gemini on the train, switch models mid-chat, and pick the thread up on your phone. Every chat you start here is on your phone.
Coming soon to the App StoreChatly for Mac
Every model on your desktop, with the files and screenshots you already have to hand.
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