Update August 5, 2026: Accounting for strict garden leaves, the friction of verifying specific 'senior' job titles, and aggressive retention efforts by established labs led to a slight downward revision in the median and upper bounds for the projected headcount.
As of mid-2026, Safe Superintelligence (SSI) operates with an intentionally lean headcount of roughly 50 employees and maintains extreme corporate secrecy finance.yahoo.com. Currently, only two publicly verifiable individuals clearly mee
Accounting for strict garden leaves, the friction of verifying specific 'senior' job titles, and aggressive retention efforts by established labs led to a slight downward revision in the median and upper bounds for the projected headcount.
The final forecast distribution for senior hires is 11.0 at the 10th percentile, 16.0 at the 25th, a median of 23.0, 35.0 at the 75th, and 52.0 at the 90th percentile. Initial logic and parameters regarding Thinking Machines Lab's founding cohort 3 sources, $2B funding wired.com, gigawatt-scale compute 3 sources, headcount 2 sources, and heavy attrition among verifiable members returning to OpenAI 55 sources are validated. Omittin
Set against broader organizational and funding milestones, minor adjustments were made to the lower tail to reflect the stabilizing effect of partial capital raises on talent retention.
The final projected headcount for senior hires is 4, 6, 10, 15, and 22 across the 10th, 25th, 50th, 75th, and 90th percentiles, ensuring the ratio of senior hires remains consistent with the broader headcount forecast for this lab. Discovery Loop was announced on August 5, 2026, by a founding team of Jeff Dean, Sanjay Ghemawat, Oriol Vinyals, and Quoc Le wsj.comwired.comreuters.com. Because all four founders qualify as having held senior technical roles at Google DeepMind or Google Brain, there is
Adjusted slightly to ensure the ratio of senior hires remains consistent with the broader headcount forecast for this lab.
Reflection AI is scaling aggressively after its $2B raise, reaching roughly 230–250 staff by mid-2026 3 sources. With massive compute commitments 3 sources, they have the resources to bid for elite talent 2 sources. However, translating total headcount into qualifying hires requires a strict filtering funnel: the resolution criteria demand explicit senior titles (research lead, principal/staff+), which filters out L4/L5 Research Scientists and flat 'Member of
Evaluated alongside the broader scaling narrative, this estimate remained largely stable as it was already consistent with the projected capital and compute trajectories.
Ineffable Intelligence operates from a formidable starting position, backed by a $1.1B seed round and significant compute 3 sources. Out of roughly 20 to 50 employees 2 sources, a baseline of 6 unambiguously meet the strict criteria, including David Silver, Junhyuk Oh, Wojciech Marian Czarnecki, and Lasse Espeholt 3 sources. Unrest at DeepMind London reuters.com and Silver's unique gravitational pull refolk.ai could trigger aggressive team reassembly consistent w
Adjusted slightly to ensure consistency with the projected pace of capital and compute expansion.
Despite a massive $1.03B capitalization, AMI Labs employs very few researchers who meet the strict 'senior' criteria from the target big-three labs. The current verifiable baseline rests on only two to three clear cases, including Sanghyun Woo and Li Jing 2 sources, while other co-founders have ambiguous prior titles 2 sources. A critical structural limiter is that Meta alumni—including Yann LeCun and the core leadership—explicitly do not count toward this threshold [a73fd2, 57a6d7
Set against related questions, this was shifted slightly downward to reflect that a deliberate, lean research strategy will likely limit massive poaching from Bay Area incumbents.
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