TabPFN-3.5 leads BeyondArena by 150 Elo

Prior Labs says TabPFN-3.5 ranks first on TabArena and finishes about 150 Elo points ahead of the previous overall leader on BeyondArena, a 142-dataset test spanning messy tabular data. The release report also says its alpha Fast variant runs up to six times faster than base, while API and MCP users get 50% off standard 3.5 token rates through September 29. For teams weighing tuned gradient boosting against a tabular foundation model, the search-agent benchmark’s cost spread is a reminder to measure task economics alongside leaderboard rank.