Your fastest LaTeX writing loop

Stay in
the math.

Write what you mean. SpeedTeX handles the syntax, fixes the small stuff, and keeps a real compiled preview beside your work—typically in about 0.4 seconds.

382 ms median hosted edit · Private processing · One-step undo

proofs.tex compiled
WRITE

\textbf{Discussion.} We need to show the solution exists and is unique.

a 3x3 matrix with 10 along its diagonal.

??? give every question a Discussion and Proof section.

PREVIEW

QUESTION 3

Discussion.

We need to show the solution exists and is unique.

( 10  0  0
0  10  0
0  0  10
)

Proof.

Let x be the proposed solution. Since m ≠ 0…

Thought valid LaTeX compiled PDF

No context switch in between.

The actual loop

Say the math.
Keep moving.

One sentence, one period, one hosted pass. The source changes in place and the real compiled PDF catches up beside it.

Actual SpeedTeX buildNo mock UI · no generated footage · normal hosted request

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Wispr Flow works beautifully with SpeedTeX. Dictate naturally into VS Code or Overleaf; when the sentence lands, SpeedTeX handles the notation and your preview catches up.

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SpeedTeX for Overleaf

The same fast loop.
Inside the browser.

The Chrome extension uses Overleaf’s live code editor, reads the complete open source when you ask it to, and lands each result as one native transaction. Collaboration, cursor mapping, and Undo stay Overleaf-native.

?? integral x y z.inline LaTeX
??? format every question.whole document
Install the Chrome beta
main.tex · Overleaf
24

?? the integral of e to the x from 1 to 10.

25

\[\int_{1}^{10} e^x\,dx\]

26

??? give every question a Proof heading.

A quiet input layer

Your document still feels like your document.

SpeedTeX does its job at the edge of your attention. No chat panel to babysit. No mysterious rewrite of everything you wrote.

01

Finish the thought.

Type a period and SpeedTeX cleans up the completed sentence—notation, spelling, grammar, and structure—without touching the half-written one beneath it. In the current hosted benchmark, the median edit landed in 382 ms.

the integral of e to the x from 1 to 10.\int_1^{10} e^x\,dx
02

Choose the scope.

?? turns its own line into inline LaTeX. ??? is an explicit whole-document formatting request—no guessing from words like “all.”

03

See the real thing.

A compiled PDF opens beside your source. Fast local preview fills the gap while TeX catches up.

04

Stay in control.

Every edit is structurally checked before it lands. Suspicious changes wait for review, and Undo is always one keystroke away.

The fastest part of your LaTeX stack

Thought to validated LaTeX in under a second.

382ms

median hosted edit, end to end through the public service

<600ms

p95 hosted edit in the current repeated benchmark

164

automated unit, Extension Host, and Chrome integration checks passing

Twelve repeated normal transformations after warmup through the public hosted endpoint, July 20, 2026. Workloads, document size, and network conditions vary.

Simple lifetime access

Set it up once. Stay in the math.

NO API SETUP

SpeedTeX lifetime

$35

One payment. Use it on up to three devices.

Get lifetime access
  • Natural writing, commands, spelling, and formatting
  • 500 standard transformations each month
  • Secure hosted processing
  • Updates included

Long whole-document transformations count proportionally. Built for individual academic use.

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At the measured normal request size, 500 transformations reserve roughly 40× a typical 200-assignment annual workload when averaged by assignment. Need to use your own AI account? Email us and we’ll help.

Questions, answered

The important details.

Does SpeedTeX write my proofs for me?

That is not the default. SpeedTeX is designed as an input and editing layer: it translates notation, repairs minor mistakes, applies formatting instructions, and preserves your mathematical intent. ?? requests inline LaTeX; ??? explicitly requests a broader document-formatting pass.

What leaves my computer?

The text needed for an edit and relevant document context pass through the SpeedTeX service for processing. The hosted database records operational metrics and a cryptographic prompt hash, not manuscript text.

What happens when I hit the hosted limit?

Nothing happens to your work. Hosted formatting pauses until the next month. If your workload regularly needs more, contact us and we’ll find the right arrangement.

Can the AI break my document?

SpeedTeX validates edit shape and LaTeX structure before applying. Risky suggestions are held for review, generated edits do not retrigger themselves, stale responses are discarded, and native VS Code or Overleaf Undo works.

The syntax can keep up now.

Put your attention
back on the proof.