MultipleChat Tool Free

Perplexity in MultipleChat

Search-native answers with sources you can open, in the same workspace as the reasoning models that check them. Sonar on the free plan, Sonar Pro on paid plans.

Sonarfree plan
Sonar Propaid plans
5model families in one Project
1workspace for sources and files

Latest AI models and studios available from one account

Chat with ChatGPT, Gemini, Claude, and Grok. Then continue into image, document, presentation, spreadsheet, and file workflows.

ChatGPT

Write, code, summarize, translate, learn, plan, and draft.

Gemini

Fast explanations, study help, and a second opinion.

Claude

Long-context writing, review, and careful reasoning.

Grok

Another perspective for research, critique, and coding.

Image models

Create images and compare visual directions.

File studios

Make docs, slides, spreadsheets, images, and file outputs.

Compare Mode + AI Team

Side-by-side answers and AI collaboration

Compare answers when one model is not enough. Use AI Team when the task needs review and synthesis.

Explore Compare Mode
ChatGPT use cases

Start with this tool. Continue in MultipleChat.

Start with the tasks people use ChatGPT for every day. Keep the page simple; move into advanced workflows only when the task needs them.

Write and rewriteEmails, posts, outlines, resumes, notes, and clearer versions of rough text.
Code and debugExplain errors, draft functions, review snippets, and plan implementation steps.
Summarize and learnTurn long text into bullets, explain topics, make study plans, and translate ideas.
Plan and brainstormGenerate ideas, compare options, prepare lists, and organize messy thoughts.
Decision guide

Which workflow should you use?

Start with the simplest mode that solves the job. Move up only when the answer needs judgment, collaboration, or a finished file.

Need speed?Use ChatGPT solo for a first draft, explanation, summary, or code answer.
Need judgment?Use Compare Mode to inspect answers from several models side by side.
Need a stronger answer?Use AI Team to draft, critique, verify, debate, and synthesize.
Need deliverables?Use the studios for documents, slides, spreadsheets, images, and files.

How it works

  1. Ask for current facts with sources
  2. Open and check the sources
  3. Hand the findings to a reasoning model

What opens after login

Perplexity is one model choice inside a Project. Ask it for the facts, then ask ChatGPT, Claude or Gemini in the same conversation history to interpret them, without re-briefing.

On paid plans Perplexity runs as Sonar Pro. Research with sources, independent verification passes and the latest models of every other family sit next to it.

Research with Perplexity

Choose the right model path

Start with Perplexity for facts

Market figures, competitor prices, current rules, recent changes. Ask for a source on every claim and open the ones you will act on.

Check with Claude or ChatGPT

Paste the findings with sources into the same Project and ask what is unsupported, outdated or contradicted. Different models have different blind spots.

Sonar vs Sonar Pro

Sonar, on the free plan, is enough to learn the workflow. Sonar Pro, on paid plans, is the higher-tier model for research you will base decisions on.

Escalate to verification

For a fact that decides money or a launch, run the independent verification pass and read the sources yourself.

Use chat, files, and studios from the same account

01

Chat with files

Upload PDFs, documents, spreadsheets, or images and ask questions about the content.

02

Image Studio

Create image prompts and continue into the dedicated image generation workflow.

03

Document Studio

Generate reports, proposals, resumes, and structured drafts.

04

Presentation Studio

Create decks, outlines, pitch materials, and training presentations.

05

Excel Studio

Work with spreadsheets, formulas, CSV files, and data analysis tasks.

06

Projects

Keep chats and files organized around a client, topic, codebase, or research area.

Real tasks people start here

Competitor sweep

List direct and indirect alternatives to [product] with price, target customer and the most common complaint in reviews. Cite each.

Perplexity finds and cites; a reasoning model turns it into the comparison table.

Research with Perplexity →

Regulation check

What are the current requirements for [activity] in [country]? Cite the official source.

Open the official source. Rules change; the citation is what makes the answer usable.

Research with Perplexity →

Where customers gather

Where do [customer type] discuss [problem] online? Communities, forums, newsletters, with links.

Feeds the marketing plan directly.

Research with Perplexity →

What changed

What has changed in [market] in the last 18 months: entrants, exits, pricing, regulation? Cite.

Ask a reasoning model what each change means for a new entrant.

Research with Perplexity →

How MultipleChat compares

ChatGPT is a strong model. MultipleChat is the workflow around it: model access, side-by-side comparison, AI collaboration, file handling, studios, projects, and verification in one place.

MultipleChat compared with ChatGPT alone and typical AI aggregators
Capability ChatGPT alone Typical AI aggregator MultipleChat
Normal ChatGPT tasksStrong for writing, code, summaries, learning, translation, and analysis.Usually depends on the chosen model.Included Do the same core ChatGPT tasks, then continue into broader workflows.
Latest model accessOne provider's model family.Several models, but versions can be unclear.Current paths ChatGPT, Gemini, Claude, Grok, web-search models, and image models in one workspace.
Side-by-side model comparisonManual copy-paste into other tools.Sometimes basic parallel answers.Core feature One prompt, multiple answers, same context.
AI collaborationOne model answers alone.Mostly model switching.AI Team Models can draft, critique, debate, verify, and synthesize one final answer.
Create files from chatGeneric text output, then manual copy into other apps.Often one or two output tools.Studios Documents, presentations, spreadsheets, images, and file-based chat workflows.
Projects and contextMostly chat history.Usually folders or separate chats.Workspace Chats, uploads, project instructions, sources, and history together.

Perplexity inside MultipleChat: what changes

Perplexity on its own is a search engine that talks. Inside MultipleChat it becomes the first step of a research method rather than the whole method. You ask it for the facts with sources, then, in the same conversation, switch to Claude or ChatGPT and ask them to check what it found. The Project holds the files you uploaded, so the reasoning models can compare the web findings with your own documents.

The plan matters here. The free plan runs Perplexity as Sonar, enough to learn the workflow. Paid plans run it as Sonar Pro, the higher-tier Perplexity model, and put the latest ChatGPT, Claude, Gemini and Grok next to it. For research you will base a decision on, that is the setup to use.

Ask"What has changed in [market] in the last 18 months? Cite each source."
CheckSwitch to Claude: "What in these findings is unsupported or outdated?"
KeepThe sources and the verdicts stay in the Project.

Start with MultipleChat

Start with free AI chat. Log in when you want the real workspace, saved chats, file uploads, and advanced multi-model workflows.

Research with Perplexity

Frequently asked questions

Is Perplexity included in MultipleChat?

Yes. Perplexity is one of the five model families in the workspace: Sonar on the free plan, Sonar Pro on paid plans.

What is the difference between Sonar and Sonar Pro?

Sonar Pro is Perplexity's higher-tier search model. In MultipleChat it is what paid plans run when you choose Perplexity.

Does Perplexity see my uploaded files?

Files in a Project are context for every model you use there, Perplexity included, alongside what it finds on the web.

Can I trust Perplexity's citations?

Open them. A citation that does not say what the model claims is common enough to check every source you rely on. That is why the reasoning models are there to cross-check.

When should I not use Perplexity?

For writing, code, long reasoning and anything where the answer is in your own files rather than on the web. Use it for facts and currency; use the others for thinking.

Is my research used to train Perplexity?

No. Content in MultipleChat is never used to train any model, by MultipleChat or by the AI providers.

Is Perplexity free in MultipleChat?

Yes. The free plan includes the standard Sonar model. Sonar Pro, the higher-tier Perplexity model, is on paid plans.

Why use Perplexity next to ChatGPT?

Perplexity looks things up and cites; chat models answer from memory. For anything current or factual, use Perplexity first and a reasoning model to interpret.

What is MultipleChat?

MultipleChat is an AI workspace where you can chat with leading models, work with files, use dedicated AI studios, compare model answers, and run AI Team workflows from one account.

Which AI models are available?

MultipleChat includes ChatGPT, Gemini, Claude, and Grok model paths in one workspace, plus dedicated image models inside Image Studio. Exact model availability can vary by plan and provider availability.

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Advanced multi-model workflows

Compare AI Models Compare ChatGPT, Gemini, Claude, and Grok side by side in MultipleChat Compare Mode. AI Team Mode Use MultipleChat AI Team to coordinate multiple models for reasoning, debate, research, and stronger answers. AI Model Comparison Compare AI models in MultipleChat across writing, coding, reasoning, research, files, and practical work outputs. Ask Multiple AI Models Ask multiple AI models the same prompt in MultipleChat and compare ChatGPT, Gemini, Claude, and Grok answers. Side-by-Side AI Comparison Compare AI answers side by side in MultipleChat to spot disagreements, better phrasing, and stronger reasoning. AI Research Assistant An AI research assistant that cites its sources and gets checked by a second model. Market, competitor, academic and product research in one Project. AI Projects Create an AI Project: files, instructions, code and chats in one place, used as context by ChatGPT, Claude, Gemini, Grok and Perplexity. Free to start. GitHub Code Review with AI Import selected files from a GitHub repository into a Project and have ChatGPT, Claude and Gemini review them. Bugs, security, edge cases, with a model that did not write the code. AI Code Reviewer Paste a file or a diff and get a code review for bugs, security and edge cases, ordered by severity, from ChatGPT, Claude or Gemini. Then a second opinion from another model. AI Fact Checker Check a claim, a paragraph or an AI answer against sources with an independent verification pass, then a second model's reading. Built for the confident-but-wrong problem. AI Second Opinion Get a second opinion from a different AI on the same question and context. Where ChatGPT, Claude and Gemini disagree is where the answer needs checking.

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