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Dan Greenheck

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

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2026-09-25 / thought-leaders-researcherDan Greenheck: 'what $1,874.40 of Opus 5.5 tokens looks like' is a full 3D coastal town built in about 8 hoursThree.js developer Dan Greenheck built TideWater, a browser island with birds, crabs, whales, wind-swayed cloth, night lighting and a sailable boat, using Opus 5.5 and multiple subagents. The build used 59% of his weekly usage, and he later turned it into a fishing game. The dgreenheck/tidewater repo was created Sep 23 and had 528 stars by Sep 25. For builders it gives a real dollar figure for one person's day of agentic 3D work.

Graph relationships

BUILT BY
TideWater
TideWater is a 3D browser island built by Dan Greenheck.
Source finding
USES
Claude Opus 5.5
Dan Greenheck built TideWater using Claude Opus 5.5 and multiple subagents.
Source finding
BUILT BY
TideWater -> Dan Greenheck
TideWater is a 3D browser island built by Dan Greenheck.
Source finding

Source trail

Perplexity community forum dgreenheck/tidewater Vercel

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