Dolphin Creator Eric Hartford Unveils With, a Self-Hosting Systems Language with C Interop
QuixiAI · x · 2026-09-25
Eric Hartford, creator of the Dolphin and Samantha open source AI models, has built With, a systems programming language written from scratch that compiles to native machine code, is self-hosting, and offers C interop. It targets performance-sensitive software: games, AI infrastructure, embedded systems, and native tools.
The design goal is making native programming less hostile: Python-like syntax with a modern type system. Examples include let ... else binding to unwrap Option[T] without nested matches, and with X.default() as mut for scoped struct mutation. The project is open source on GitHub, and Hartford's own game WIPE is being written in With.
Related event: AI Model Author Eric Hartford Launches Systems Language With(2 posts)→
More from coding & agent
- TypeLLM adds type-safe, schema-guaranteed generation to LLMs without touching weights — kalyan_kpl · 2026-09-25
- Five mistakes people make with agentic factories: micromanaging, no quality bar, and 'puppet shows' — hugobowne · 2026-09-25
- Open Claude Code skills catalog ships 31 testing skills, from metamorphic testing to E2E — doodlestein · 2026-09-25
- Researcher proposes agent-suggests-human-executes loop for real-world science experiments — suragnair · 2026-09-25
- CrawlRaven hits 700 users in 60 days, targets 2,000 more with MCP-powered SEO audits — ayushtweetshere · 2026-09-25
- Human-in-the-loop or machine-executed: verifiable tasks turn agent traces into RL rewards — suragnair · 2026-09-25