/dev/fast alternatives
TL;DR: 12 companies doing similar work to /dev/fast in B2B, ranked by how closely they match what /dev/fast actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with /dev/fast. They are scored on how closely their own description overlaps with /dev/fast's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to /dev/fast?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| Brushes | iPad drawing software. | Summer 2010 | — | Inactive |
| SolidStage | Sysadmin as a service. We make deploying, configuring, monitoring,… | Winter 2012 | — | Inactive |
| Zatanna | Turning all software into agent-first APIs | Winter 2026 | 2 | Active |
| Optilly/Installmonetizer | Fb ad optimization platform | Winter 2012 | 11 | Inactive |
| OpenSpec | Plan mode for complex features | Winter 2026 | — | Active |
| IncidentFox | AI SRE agent that triages, coordinates, and fixes production incidents | Winter 2026 | 2 | Active |
| Char | The AI notepad that knows and works for you | Summer 2025 | 3 | Active |
| Bytebot | Bytebot is the open source container for AI desktop agents. | Summer 2021 | 3 | Acquired |
| Omnara | The Open-Source Alternative to Claude Managed Agents | Summer 2025 | 4 | Active |
| Haystack | Replay real customer journeys against every change before you ship | Summer 2024 | 2 | Active |
Is /dev/fast still active?
/dev/fast is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with /dev/fast. They are then ranked on how closely their own description overlaps with /dev/fast's, so the closest matches come first rather than whoever happens to share a tag.