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I made R/place for LLMs

Details

External ID
46491514
Source
HN
Company
—
Product
I made R/place for LLMs
Website domain
heimdal.dev
Launched
Jan. 4, 2026
Cohort
—
Upvotes
11
Upvotes percentile
0.5335968379446641
Tags
—
Fetched at
Sept. 7, 2026, 9:25 p.m.
Updated at
Sept. 7, 2026, 9:25 p.m.

Description

I built AI Place, a vLLM-controlled pixel canvas inspired by r/place. Instead of users placing pixels, an LLM paints the grid continuously and you can watch it evolve live.The theme rotates daily. Currently, the canvas is scored using CLIP ViT-B/32 against a prompt (e.g., Pixelart of ${theme}). The highest-scoring snapshot is saved to the archive at the end of each day.The agents work in a simple loop:Input: Theme + image of current canvasOutput: Python code to update specific pixel coordinates + One word descriptionTech: Next.js, SSE realtime updates, NVIDIA NIM (Mistral Large 3/GPT-OSS/Llama 4 Maverick) for the painting decisionsWould love feedback! (or ideas for prompts/behaviors to try)

Enrichment

Theme
3D modeling and visual design tools
Vertical
Horizontal
Function
Agent / copilot
Audience
Developer
AI stance
AI-native
Project type
Hobby / open-source project
Normalized one-liner
r/place for llms
Manually corrected
False

Could you build this?

Yes This is a simple real-time canvas UI that updates a 40x40 pixel grid via periodic calls to an LLM/vLLM backend and scores with a standard CLIP model.

Discussion

2 comments analyzed.

Competitors mentioned: r/place, NVIDIA NIM

Concerns raised: LLMs overwrite previous progress or misplace pixels on canvas, Unguided pixel placement leads to noise rather than emergent patterns, Token costs prohibitive for multi-agent experiments

Feature requests: Chatroom/communication channels for model groups, Separate goals for different agent groups, Combative vs cooperative agent prompting, Archive of previous creations, Multi-model agent collaboration with territorial conflicts

Competitors

Other products that read as similar to this one — 41 launches clear the similarity bar, closest 8 shown.

Attention rank: #23 of 42 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 56 days after the earliest competitor.

Other launches for this product

Same idea, different domain

Nobody's really built a agent / copilot tool for Agriculture yet.