Benchmark Prompts / P05

Stone watchtower: 8 AI models, one prompt

Every Season 1 competitor received this prompt verbatim, at default settings, with one generation and no manual cleanup. Nothing below is cherry-picked — the failures ship too, because a benchmark that hides them isn't one.

The prompt (v1.0, CC BY 4.0)

A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.

What it tests: Architectural massing, repeated elements, and material separation.

Category: Architecture

Blind vote results for P05

90 ballots · 6 “both bad”

CompetitorWinsLosses
3D-Agent257
Claude Opus 5153
Claude Fable 51110
Grok 4.6103
Claude Opus 4.8813
Claude Sonnet 5616
GPT-5.6 Sol57
Claude Haiku 4.5122

Every output for this prompt

Click any card to load the model in 3D and orbit it. Generation notes under each entry state exactly how it was produced.

3D-AgentArchitecture

P05: “A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.

Claude Haiku 4.5Architecture

P05: “A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.

Claude Sonnet 5Architecture

P05: “A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.

Claude Opus 4.8Architecture

P05: “A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.

Claude Fable 5Architecture

P05: “A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.

Claude Opus 5Architecture

P05: “A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.

GPT-5.6 SolArchitecture

P05: “A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.

Grok 4.6Architecture

P05: “A small medieval stone watchtower with a wooden door, arrow slits, and a conical roof.