task automationincreasesconfidence 90/100 · magnitude 745 Dec 2024
In pre-registered experiments with experienced open-source developers, access to AI tools increased the number of tasks completed by about 26% relative to control.
Complements the Copilot study with a more experienced population and a pre-registered design. Reinforces a high task-automation component for implementation work; no employment effect is measured.
Source: Cui, Demirer, Jaffe, Musolff, Peng & Zheng — The Effects of Generative AI on High Skilled Work (arXiv:2412.04638) · Updated 5 Dec 2024
task automationincreasesconfidence 88/100 · magnitude 7813 Feb 2023
In a controlled experiment with 95 developers, those with access to GitHub Copilot completed a specified programming task 55.8% faster than the control group.
A single, well-specified task in one language. It is strong evidence that routine implementation work speeds up, and weak evidence about whole-job effects, particularly for system design or unfamiliar legacy code.
Source: Peng, Kalliamvakou, Cihon & Demirer — The Impact of AI on Developer Productivity (arXiv:2302.06590) · Updated 13 Feb 2023
model releaseincreasesconfidence 85/100 · magnitude 585 Aug 2025
Claude Opus 4.1 extended sustained autonomous performance on multi-step coding and research tasks, with providers reporting multi-hour task horizons.
Agentic reliability is the capability that moves automation from single-prompt assistance toward completing whole workflows. It affects multi-step task exposure, not physical work.
Source: Anthropic · Updated 5 Aug 2025
researchincreasesconfidence 82/100 · magnitude 7424 Aug 2023
Using O*NET task descriptions scored by GPT-4, the authors estimate that about 80% of the US workforce could have at least 10% of their tasks affected by large language models, and about 19% could see at least 50% of their tasks affected.
This is a *capability and exposure* estimate produced by having a model rate task descriptions — not a measurement of employment change. It is the most-cited exposure figure in the field and is included here as an exposure input, weighted accordingly.
Source: Eloundou, Manning, Mishkin & Rock — GPTs are GPTs (arXiv:2303.10130) · Updated 24 Aug 2023
researchdecreasesconfidence 78/100 · magnitude 4513 May 2024
Estimating that only a small share of tasks are currently cost-effective to automate, the paper projects total-factor-productivity gains of no more than about 0.66% over ten years, with limited aggregate labour-demand effects.
Included as a counterweight. Exposure — even high task exposure — does not imply large aggregate job loss, because adoption depends on cost, reliability, regulation and complementary investment. This evidence lowers the labour-market component rather than capability.
Source: Acemoglu — The Simple Macroeconomics of AI (NBER Working Paper 32487) · Updated 13 May 2024
adoptionincreasesconfidence 72/100 · magnitude 541 Apr 2025
The AI Index reports continued increases in the share of organisations using generative AI in at least one business function, alongside rapid benchmark gains on reasoning and coding tasks.
Survey-based adoption evidence across firms. Useful for the adoption component and for interpreting why capability and adoption diverge by occupation.
Source: Stanford HAI — Artificial Intelligence Index Report 2025 · Updated 1 Apr 2025
adoptionincreasesconfidence 70/100 · magnitude 6827 Feb 2025
Aggregated and anonymised Claude conversation data mapped to O*NET tasks shows that usage is concentrated in a small number of occupations and tasks — notably software development, writing and technical analysis — and that a substantial share of usage is augmentation rather than full automation of a task.
This is the primary *observed adoption* input, and it is deliberately kept separate from capability. A model being able to do a task does not mean firms are using it. Usage data is self-selected (Claude users) and therefore over-represents digital and technical occupations.
Source: Anthropic Economic Index · Updated 27 Feb 2025
adoptionincreasesconfidence 68/100 · magnitude 5214 Aug 2025
Indeed Hiring Lab scores the skills appearing in job postings against AI capability and reports that the share of skills generative AI could perform has continued to increase, with larger effects for software development and customer-facing roles than for hands-on occupations.
Job postings measure what employers ask for, which is a leading indicator but not employment. Exact series values are not reproduced here; read them from the source. Used to inform the job-posting-change signal type.
Source: Indeed Hiring Lab — AI at Work series · Updated 14 Aug 2025
adoptionincreasesconfidence 52/100 · magnitude 5013 Jul 2023
A meta-analysis of early controlled studies reported an average productivity increase of about 66% across supported tasks, with wide variance by task type.
Useful directionally but the average is dominated by small short-duration studies on well-specified tasks. Weighted low. The variance, not the mean, is the useful finding.
Source: Nielsen Norman Group — AI Improves Employee Productivity by 66% (meta-analysis) · Updated 13 Jul 2023