Investor's Last Exam tests whether AI agents can do stock analysis without seeing the future
Published in edition no. 1 of Noticiário do Joãozinho ·
Translated by Joãozinho AI from the original Brazilian Portuguese edition. Facts, numbers and sources are the same as in the original; quotes, video titles and source names stay in their original language. Read the original in Portuguese
An equity research benchmark led by experienced investors and fund managers, with 86 tasks and a frozen base of 3.43 million document versions. GPT-6 Astra leads with 68.1, followed by Claude Opus 5.5 with 66.9. On the forecasting and modeling part, Astra scores 52.5.
Why it matters It measures a buy-side analyst's work end to end and shows that forecasting and modeling are still the weak point.
Original source: Hugging Face Papers — https://huggingface.co/papers/2610.38342