First-generation product — recently released, still early days
Best for: Engineers and professional makers who need large-format enclosed printing with active chamber heating — and want Prusa's open-source ethos and long-term support over a closed-ecosystem competitor.
Full details →Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: Makers who need enclosed CoreXY printing for PA-CF and ASA on a budget — and want a capable alternative to Bambu without the ecosystem lock-in.
Full details →| Prusa Research CORE One L | Creality K1C | |
|---|---|---|
| Tier | Professional | Prosumer |
| Motion | CoreXY | CoreXY |
| Build Volume | 300 × 300 × 330 mm | 220 × 220 × 250 mm |
| Max Speed | 500 mm/s | 600 mm/s |
| Multicolor | ❌ No | ❌ No |
| Enclosure | ✅ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ✅ | ❌ |
| Upgrade Kit | — | — |
| Materials | PLA, PETG, ABS, ASA, TPU, PA, PA-CF, PC | PLA, PETG, ABS, ASA, TPU, PA-CF |
| Released | Nov 7, 2025 | Jan 20, 2024 |
| Cycle length | — | ~450 days |
| Cycle advice | Buy | Wait |
| Deals advice | Caution | Buy |
| Next model | — | — |
A large enclosed build volume with genuine active chamber heating — making the CORE One L reliable for ABS, ASA, PA, and PC across the full build plate.
All firmware, hardware designs, and slicing profiles are open source. Prusa backs the CORE One L with long-term parts availability and community support.
For institutional, government, and production customers, a dedicated Critical Infrastructure Edition is offered — Prusa's commitment to secure supply for professional users.
The K1C ships with a hardened steel nozzle rated for carbon-fiber filaments — a significant cost advantage over printers that require aftermarket nozzle upgrades.
Few printers under $400 offer genuine enclosure capability. The K1C delivers ABS and ASA-capable chamber temperatures.
Competitive speed with Bambu's P-series at a fraction of the price.