Decoder. plain-English AI glossary

Tree of Thought

▲ Rising

Letting a model branch into several lines of reasoning and explore them like a decision tree instead of one straight path.

Think of it like

Like planning a chess move by imagining several candidate moves and their follow-ups, not just the first one you see.

Example

For a logic puzzle, the model proposes a few possible first steps, evaluates each, and pursues the most promising branch.

How it actually works

Where plain chain-of-thought commits to a single reasoning path, tree of thought generates multiple candidate steps, scores them, and can backtrack from dead ends. It trades a lot more compute for better results on problems that need search or planning. It’s more a prompting-and-orchestration strategy than a change to the model’s weights.

For product teams

A way to squeeze harder problems out of a model, at a steep compute multiplier.

For engineers

A search procedure over branching reasoning steps with evaluation and backtracking.

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