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Turn prompts, tabs, and AI chats
into source-backed briefs.

Ask a question. SourceFrame searches, checks the evidence, and builds a cited brief you can read in full.

Also turn browser tabs and AI chats into briefsGet the Chrome extension →The extension runs in desktop Chrome.
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What a brief looks like

Excerpts from a real Comparison Brief, gaps included

We ran one of the composer’s example questions: PostHog vs Mixpanel vs Amplitude for an early-stage SaaS. These excerpts are quoted as written — findings with the sources they cite, and the limit the brief named in its own evidence. The complete brief is one click away.

Real briefComparison BriefGenerated 23 Oct 2026 · 15 sourcesVerbatim excerpts

PostHog vs Mixpanel vs Amplitude for an early-stage SaaS

What it found · from Overview

  • PostHog spans analytics plus replay, surveys, flags, CDP, and more; Mixpanel stays more focused on analyticssource 1source 11

  • PostHog offers cloud or self-hosting, while Mixpanel is cloud-only and emphasizes faster setup for less technical overheadsource 11source 14

Where the evidence runs out · from Evidence gaps & caveats

  • Most evidence is vendor-authored pricing, documentation, or comparison content; independent, matched testing across PostHog, Mixpanel, and Amplitude is limited.

Sources these excerpts cite

  • source 1

    PostHog vs Mixpanel in-depth tool comparison

    posthog.com · Found by web search

  • source 11

    PostHog vs Mixpanel - Which Tool is Better in 2026

    amplitude.com · Found by web search

  • source 14

    Self-host PostHog - Docs - PostHog

    posthog.com · Selected by the author

AI-generated from 15 web pages found by search and selected by the author. The titles are as the brief lists them; the full set is in the brief.

Open the real brief: Comparison Brief, opens in a new tabRun this comparison yourself ↑

Read-only copy. A Comparison Brief stops before the overall call, and a new run finds its own sources.

Research gets messy fast

Research starts scattered. Briefs shouldn’t.

You might start with a prompt, a set of tabs, or an AI conversation. SourceFrame turns scattered research into a clear brief you can trust, export, or draft from.

Without SourceFrame

Prompts, tabs, and AI chats stay scattered
You can’t tell what came from a source and what AI inferred
Comparing options happens in your head, then gets lost
Turning research into something you can hand over takes hours

With SourceFrame

Start from a prompt or selected sources
Findings link to their sources, and gaps are named
Tradeoffs and comparisons are laid out, not improvised
Export the brief or build a draft from it in one step

How it works

From a prompt, tabs, or AI chats to a cited brief

SourceFrame creates source-backed briefs from the evidence you choose or ask it to find.

01

Start from a prompt

SourceFrame finds relevant web sources and checks them.

02

Capture tabs or AI chats

Use the browser extension to bring open research into SourceFrame.

03

Get a cited brief

Create summaries, comparisons, and recommendations with visible sources.

Brief types

The right brief for each source set

SourceFrame turns a research prompt, selected tabs and AI chats into the brief type that fits the question — then lets you ask, add sources, or draft from the same source set.

Source Brief

Answers your question about a subject, with the sources as the evidence for the answer.

Source Summary Brief

Summarizes the source set itself — what this collection of reading collectively says.

Research Brief

A snapshot of a question that is still open. It keeps unresolved questions and thin evidence as state, names no winner, and ends in the next research move.

Source Comparison Brief

Compares what the sources say — where they agree, and where they contradict each other.

Comparison Brief

Compares options you already know against shared criteria — and deliberately stops before picking one.

Recommendation Brief

The only type that makes the call — and states how firm it is. When the evidence isn’t there, it says so instead of committing.

Then work with the brief

Ask about this brief

Explore follow-up questions without starting over in a blank chat.

Create draft from brief

Turn a brief into reusable writing while keeping the source context intact.

Use cases

When scattered sources need to become usable

Use SourceFrame when research starts as a prompt, scattered tabs, or an AI conversation — and needs to become something you can trust, cite, or act on.

Compare tools or options

Named candidates, shared criteria, and a clear view of which criteria are actually evidenced — before anyone argues about the answer.

Check an AI answer

Bring the ChatGPT or Claude conversation in as context, put independent web sources next to it, and see what the evidence covers — and what it doesn’t.

Research an open question

The landscape is unsettled and the candidate set isn’t fixed, so a single confident answer would overstate it. SourceFrame keeps what’s answered, partial and open in view, and runs another bounded round where it matters.

Answer a question with sources

You know what you need to find out. You want the answer, the evidence under it, and an honest note on what the sources don’t cover.

Summarize a source set

The set of sources is the subject. You want its themes, the tensions between sources, and the questions it leaves open.

Compare what sources say

A vendor page, an independent review and a forum thread tell three stories. You need the agreement and the conflict separated, with both sides kept.

Turn research into a decision

Carry one problem from open research to a comparison to a call — deciding yourself when each stage is ready, with its status and gaps still attached.

Why SourceFrame

Not another blank AI chat

Use ChatGPT to explore ideas. Use SourceFrame when research needs sources, structure, citations, and follow-through.

The difference

Generic chat gives you an answer. SourceFrame builds a brief from inspectable sources — selected by you or discovered from your prompt.

Grounded in inspectable sources

SourceFrame works from sources you choose or sources it discovers from your prompt.

Structured as briefs

Turn research into summaries, comparisons, and recommendations with a clear shape.

Built around real research context

Start from a prompt, open tabs, or AI conversations without rebuilding context by hand.

Made for follow-through

Go from sources to brief to draft without losing the evidence behind it.

FAQ

Common questions

SourceFrame is a web app and browser extension that turns research prompts, selected browser tabs, and AI chats into structured, source-backed briefs. Start from a prompt or choose the sources you want to work from, and SourceFrame creates the brief type that fits — from a Source Brief that answers your question to a Recommendation Brief that makes a call — with citations and evidence gaps surfaced.

Many AI assistants can search the web and cite links. SourceFrame is built for what comes after an answer: a brief with a fixed structure for the job — an answer, a summary of a source set, a comparison or a recommendation — that you keep and extend. It names the gaps the sources leave instead of filling them, labels sources it could not read (“site blocked extraction”, “metadata only”) rather than citing them, shows how much evidence covers each comparison criterion, and cites an AI chat as context, never as evidence. When something is still open, you add sources or research it further and the brief updates.

Yes. With Prompt-to-Brief, you can describe what you want to research and SourceFrame will find relevant web sources, check which ones are usable, and create a cited brief from them. You can still use the browser extension when you want to capture specific tabs or AI chats yourself.

You can use auto-discovered web sources, web pages you have open, and ChatGPT or Claude conversations. SourceFrame works from that source set instead of relying only on generic model recall.

A brief is a structured output grounded in sources, and there are six brief types. A Source Brief answers your question; a Source Summary Brief maps what a set of sources says; a Research Brief keeps an open question structured; a Source Comparison Brief shows where sources agree and disagree; a Comparison Brief lines options up against shared criteria without picking one; and a Recommendation Brief makes the call and states how firm it is.

SourceFrame is for source-heavy work: comparing tools, checking AI answers against web sources, summarizing messy research, building recommendations, and turning research into drafts. It is useful whenever prompts, tabs, and AI chats need to become something you can trust, cite, or act on.

Use SourceFrame when you need a cited summary, comparison, recommendation, follow-up answer, or draft from real sources. Start from a prompt when you want SourceFrame to find sources for you, or use the browser extension when your research is already open in tabs or AI chats.

SourceFrame only works with the sources you choose or the sources it discovers when you explicitly ask it to create a brief. It does not passively watch your browsing or read tabs in the background.

No. You can create a brief from a prompt in the web app. The browser extension is useful when you want to capture specific open tabs or AI conversations as the source set for a brief.

Create your first source-backed brief

Create cited summaries, comparisons, and recommendations from a prompt, selected tabs, or AI chats.

Create a briefGet Chrome extension
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