Sonar Deep Research
Brief it like a junior analyst. It researches across the web on its own, then writes the long, fully cited report you can bill for.
[ Overview ]
Meet Sonar Deep Research.
Sonar Deep Research is the model you brief rather than chat with. Consultants, agencies and coaches use it to produce the kind of research report that used to eat a week: it goes away, works through the sources, and comes back with the whole thing written up.
Ask for the market landscape before a pitch. Commission a competitor teardown you can put your logo on. Get the background behind a client's positioning, or the due diligence on a partner. It searches, reads, reasons over what it finds, searches again on what it learned, then writes a structured report with the sources attached.
It is the slowest of the Sonar tiers, and that is the entire point: the value is in the loop, not the wait. For a quick sourced answer, Sonar Pro is the faster path. Deep Research comes with HiggsChat alongside every other leading model and image and video generation, on one subscription.
[ Key features ]
What it's great at.
Thinks it through
Works through the brief before it answers, so you edit less.
Writes in your voice
Scripts, captions, emails and blog drafts that sound like you.
Keeps the thread
Hand the same conversation to any other model without repeating yourself.
Turns words into visuals
Take the script you just wrote straight into an image or a video.
Handles the long stuff
Paste in a full transcript or brief and it stays in view.
Always current
The newest version is wired up the day it ships. No upgrade to buy.
[ Use cases ]
Built for real work.
Content & copy
Posts, emails and scripts in your brand voice.
Software
Scaffold features, write tests, review PRs.
Data & analysis
Explain datasets, write formulas and SQL.
Learning
Break down hard concepts with clear answers.
Research
Summarize long PDFs into clear takeaways.
Support
Draft replies, macros and help articles.
[ Example prompts ]
Steal these to get started.
Copy any prompt and paste it straight into Sonar Deep Research inside HiggsChat.
“Rewrite this to be 30% shorter, keep the key facts, confident but warm tone: [paste text]”
“Here is a function and the error it throws. Explain the root cause in two sentences, then give a corrected version: [paste code]”
“Act as a skeptical investor. List the three weakest assumptions in this pitch, with a sharper question for each: [paste]”
“Explain how vector embeddings work to a smart 12-year-old, one everyday analogy, no jargon.”
[ How to use it ]
Sonar Deep Research inside HiggsChat.
Open a new chat
Hit New Chat in your HiggsChat sidebar. No API key or Anthropic account needed.
Select Claude Opus 4.8
Pick Claude Opus 4.8 from the model selector at the top. Switch any time.
Prompt & switch
Start working, and hand the thread to any other model whenever you want a second take.
[ Pricing ]
One subscription. Every AI model.
Chat, image, and video models from OpenAI, Anthropic, Google, SpaceXAI, and more, all powered by simple credits. No free plan; free signup lets you explore everything first.
Team
Everything in Max, plus:
1 credit = a slice of real cost
You only pay for what a model actually costs, nothing more.
One shared balance
Chat, images and video all draw from the same credits.
Never get stuck
Run out? Buy add-on credit packs anytime.
[ FAQ ]
Sonar Deep Research, answered.
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Sonar Deep Research is the model you brief rather than chat with. Consultants, agencies and coaches use it to produce the kind of research report that used to eat a week: it goes away, works through the sources, and comes back with the whole thing written up.
Ask for the market landscape before a pitch. Commission a competitor teardown you can put your logo on. Get the background behind a client's positioning, or the due diligence on a partner. It searches, reads, reasons over what it finds, searches again on what it learned, then writes a structured report with the sources attached.
It is the slowest of the Sonar tiers, and that is the entire point: the value is in the loop, not the wait. For a quick sourced answer, Sonar Pro is the faster path. Deep Research comes with HiggsChat alongside every other leading model and image and video generation, on one subscription.
