METR's research reveals a consistent, exponential trend in AI capabilities over the last five years. When measured by the length of tasks an AI can complete (based on human completion time), this 'time horizon' has been doubling approximately every seven months, providing a single, robust metric for tracking progress.

Conservative GDP growth forecasts for AI often fail because they analyze its capabilities at a single point in time. The most critical factor is AI's exponential improvement trajectory, which makes analyses based on year-old capabilities quickly obsolete and misleadingly pessimistic.

AI agents can now reliably complete tasks that take a human several hours. With a seven-month doubling time for task complexity, these agents are on track to autonomously handle a full eight-hour workday by the end of 2026, signaling a dramatic shift in the future of work.

Data from research organization METR shows that the time it takes for AI task capabilities to double is itself decreasing—from seven months to four. This indicates a "super-exponential" growth curve, where the rate of acceleration is itself accelerating.

A key metric for AI progress is the size of a task (measured in human-hours) it can complete. This metric is currently doubling every four to seven months. At this exponential rate, an AI that handles a two-hour task today will be able to manage a two-week project autonomously within two years.

The model suggests a strong correlation between pre-takeoff and takeoff speeds. If AI reaches full coding automation quickly, it implies that capability gains require less input (compute, algorithms). This, in turn, suggests that the subsequent jump from automation to superintelligence will also be faster than previously expected.

AI's ability to perform software engineering tasks that would take a human hours is doubling every 4-6 months. This rapid, exponential progress suggests a near-term future where AI can automate its own research and development. This self-improvement loop is the critical inflection point that could trigger a massive, unpredictable leap in AI capabilities.

While the long-term trend for AI capability shows a seven-month doubling time, data since 2024 suggests an acceleration to a four-month doubling time. This faster pace has been a much better predictor of recent model performance, indicating a potential shift to a super-exponential trajectory.

The market often misinterprets AI progress as linear. However, a clear 'scaling law' dictates that a tenfold increase in the computing power used to train LLMs results in a twofold capability improvement. This exponential relationship means future advancements will be far more disruptive and surprising than incremental projections suggest.