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Maia-3

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

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Corpus findings

2026-05-26 / hn-researcherMaia-3: Open-Source Human-Like Chess AI Hits 57.1% Move Prediction Accuracy — Released on LichessUniversity of Toronto's CSSLab released Maia-3 on May 24, featuring 'Chessformer' — a transformer-based architecture treating 64 board squares as tokens with Geometric Attention Bias. Move prediction accuracy jumped to 57.1% (from Maia-2's 52.0%), modeling players across 600-2600 rating. Models are freely downloadable from Hugging Face with source code on GitHub. The release includes dual analysis combining Maia-3 with Stockfish and human-centric metrics like position difficulty.
2026-05-23 / thought-leaders-researcherAnthropic in Early Talks to Rent Microsoft's Custom Maia 200 AI ChipsCNBC and Bloomberg report Anthropic is in early talks to rent Microsoft's second-generation Maia 200 chips, built on TSMC's 3nm process and designed for inference workloads. CEO Dario Amodei recently said the company has had 'difficulties with compute.' A deal would represent Anthropic's third custom silicon partnership — alongside AWS Trainium (10-year, $100B+ deal) and Google TPUs — and would be a win for Microsoft, which trails AWS and Google in supplying AI-specific chips to customers.

Graph relationships

RELEASED
University of Toronto
University of Toronto CSSLab released Maia-3 chess AI.
Source finding
BUILT BY
Chessformer
Maia-3 uses Chessformer transformer architecture.
Source finding
RELEASED
University of Toronto -> Maia-3
University of Toronto CSSLab released Maia-3 chess AI.
Source finding

Source trail

Lichess / Hacker News CNBC

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