Progress Index v1 at a glance
Launched alongside Intelligence Index v5, the Progress Index puts language models released since November 2022 on one stable capability scale.
What changed with Progress Index v1
Alongside version 5 of its Intelligence Index, Artificial Analysis introduced Progress Index v1. It uses item response theory, the statistics behind standardized tests, to estimate each model's capability and each task's difficulty on a shared scale, so models can be compared even when they were not run on the same benchmarks.
The scale is anchored so that o3-mini (high) scores 220 and GPT-5.5 (xhigh) scores 320. Artificial Analysis says the Progress Index is for studying trends over time, while the Intelligence Index remains the tool for choosing a model today.
Where to compare Progress Index v1
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
General leaderboards
Why Progress Index v1 matters for businesses
For buyers, the practical value is context: it helps show how quickly capability and price-performance are moving, which matters when deciding whether to lock into a model or plan for regular upgrades.
Sources for this story
- Announcing Artificial Analysis Intelligence Index v5 (opens in a new tab)Official
Artificial Analysis · artificialanalysis.ai
- Artificial Analysis Progress Index v1 Methodology (opens in a new tab)Official
Artificial Analysis · artificialanalysis.ai
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