What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
The $1.5 billion in this story was a reported ceiling, not a salary and not a cash offer. The Wall Street Journal described a package for Andrew Tulloch, a co-founder of Thinking Machines Lab and a former Meta engineer, as potentially worth up to $1.5 billion over at least six years. That figure required top bonuses and extraordinary stock performance. Meta disputed the description. The coverage does not include a direct, attributable explanation from Tulloch himself, so the reasons given for turning the offer down come from unnamed sources and are not confirmed.
What was reported, and by whom
The headline draws on reporting from August 2025, and it is more than a year old. This article does not track any later developments in the talks or in Tulloch’s career. The table below separates the three accounts that shape the story, because they describe different things and should not be merged.
| Source and date | Figure reported | Conditions or structure | Meta’s response |
|---|---|---|---|
| The Wall Street Journal, August 2025 (read via an archived copy) | Up to $1.5 billion for Tulloch | Paid over at least six years, and only if top bonuses and extraordinary stock performance were achieved | Spokesman Andy Stone called the account “inaccurate and ridiculous” |
| WIRED, July 29, 2025 | More than a dozen Thinking Machines Lab employees approached or given offers; one offer reported above $1 billion over a multi-year span, according to a source familiar with the negotiations | Multi-year; the coverage consulted does not state the conditions for that offer | Meta disputed the reporting; the coverage does not specify which points Meta contested |
| Indian Defence Review, Arezki Amiri, August 8, 2025 | Repeats the approach to Tulloch and the $1.5 billion description | Adds explanations about independence and autonomy attributed to unnamed sources | Not stated in this account |
Two points follow from the table. First, the $1 billion figure and the $1.5 billion figure come from different outlets and describe different things: WIRED’s number refers to one offer in a broader recruiting push, while the Wall Street Journal’s number refers to a single contingent package. Second, the Indian Defence Review piece is a secondary account. It is useful for the framing it adds, but it does not independently confirm the figures.
Four distinctions that change the number
A headline figure like $1.5 billion can mislead when read as a paycheck. Four distinctions explain why this one should be read carefully.
Recommended Free Tools
#1 Best Overall
Reported maximum versus guaranteed compensation
The Wall Street Journal’s wording was “up to” $1.5 billion. That describes a ceiling that depends on bonuses and stock performance being achieved at the highest levels. A guaranteed amount would look different: it would be paid regardless of how targets or the share price turned out. Nothing in the reporting consulted establishes a guaranteed cash figure, and this article does not assume one.
Immediate cash versus multi-year compensation
The package was described as spread across at least six years. Money paid over several years is worth less than the same total paid today, and the timing of each payment matters for planning. A reader comparing this to a salary would need to know how much would arrive in year one, how much depends on later performance, and how much is tied to stock that may not yet have vested. None of those splits are given in the reporting.
Rank #2
Source’s claim versus Meta’s response
The figure came from a reporter’s account of the offer. Meta, through spokesman Andy Stone, said that account was “inaccurate and ridiculous.” Both positions belong in any summary. Attributing the number to the Wall Street Journal and including Meta’s reply is the accurate way to present it. Describing the figure as fact would overstate what the evidence shows.
Individual offer versus broader recruiting activity
WIRED’s reporting described a wider effort: more than a dozen Thinking Machines Lab employees were approached or received offers. That is not the same as saying every person received an offer, and it does not establish that every person declined one. The Tulloch package is a single case within that larger pattern, and the two should be kept separate.
Rank #3
Why Tulloch might turn the offer down, and what is not known
The reasons offered for declining come from unnamed sources who described Thinking Machines Lab’s independence and the autonomy its leaders wanted. Those explanations are attributed, not verified. The reporting does not include a direct, attributable statement from Tulloch explaining his decision, and it does not establish his personal motivation. Readers should treat the explanation as one account of the situation, not as confirmed fact about Tulloch’s thinking.
The headline’s claim that he turned the offer down also rests on this secondary coverage. Read it as reported, not as a confirmed personal decision.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to read an “up to” compensation package
The Tulloch story is a useful case study for any headline number that mixes a maximum with conditions. Before repeating a figure like this, or comparing it to your own offer, check the following:
- Guaranteed part: identify how much is paid regardless of performance. If the answer is not stated, the figure is a ceiling.
- Time horizon: note the number of years and whether payments are spread evenly or weighted to later years.
- Conditions: list each bonus threshold or performance target, and who sets it. A target that is hard to reach changes the realistic value.
- Stock component: stock-linked pay depends on the share price at the time it vests or is sold. The same grant can be worth very different amounts in different years.
- Cash timing: estimate how much arrives in each year. Long-dated payments require discounting when you compare them with money paid now.
- Source and response: check who gave the number and whether the company disputed it. Attribute the figure to its source and include any response.
Applying this list to the Tulloch report shows why the $1.5 billion figure should be quoted with its conditions attached, and why the $1 billion figure from WIRED should be kept separate from it.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Quick Recap
Best Value
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
