Building the future of coding, in public.
I build ambitious software with AI and document the process: the working demos, the failures, and what it takes to make these tools useful.
Start here
A few builds worth watching.
Real projects. The whole experiment.
7:51 Building my own IDE with AI
Six weeks, 300+ commits, and a full terminal IDE. Meet the project now known as TIDE.
Watch the build
7:58 GPT-5.4 takes on a Rust terminal
Start with an empty directory. Add tabs, split panes, and themes. See where the model hits its limits.
Watch the build
16:33 Giving AI a sense of design
Build DesignSubstrate.com on camera with a free skill that turns design taste into a working system.
Watch the buildBuilt on the channel
Meet the projects.
Explore the software behind the videos.
Terminal IDE
TIDE
A full editor in your terminal, with AI chat, language tools, Git, and split panes. Built with AI, with the architecture and docs here to explore.
Explore TIDE & the docs- 01GPT 6 Astra
- 02GPT 5.6 Sol
- 03Fable 5.1
- 04DeepSeek V4 Pro
- 05GLM 5.3
Five-model build experiment
Yarn
Yarn is an Ultra.dev build experiment: give five coding models the same open-ended brief for an Ollama-focused desktop IDE, then compare the products, the follow-up they needed, and the cost of getting there.
Explore YarnLatest
Fresh from the channel.
The newest videos from @UltraDotDev.
9:11 I Put Fable 5.1 Up Against GPT6-Astra And More
0:52 I Put Fable 5 1 Up Against GPT5 6 And It Was Crazy #fable5 #claude #claudecode #openai #codex
0:33 Anthropic Drops Fable 5 1 And Usage Is Nuts #claudefable5 #claude #claudecode #fable5 #aicoding #ai
1:42 Anthropic Deleted 80% of Claude’s Prompt. I Went Further. #aicoding #codex #claudecode #ai #glm53
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