Early in release cycle — no urgency to wait
🔧 Upgrade kit available — from CORE One
Best for: Makers who want CoreXY speed and precision with Prusa's open-source ethos, community support, and long-term repairability — without Bambu's closed ecosystem.
Full details →Late in cycle — but an upgrade kit is available. Existing owners can upgrade without buying new
🔧 Upgrade kit available — from MK4, MK3.5
Best for: Makers who value open-source hardware, community support, long-term repairability, and battle-tested reliability over raw speed or multicolor features.
Full details →| Prusa Research CORE One+ | Prusa Research MK4S | |
|---|---|---|
| Tier | Prosumer | Prosumer |
| Motion | CoreXY | BedSlinger |
| Build Volume | 250 × 220 × 270 mm | 250 × 210 × 220 mm |
| Max Speed | 600 mm/s | 500 mm/s |
| Multicolor | ❌ No | ❌ No |
| Enclosure | ✅ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ✅ | ✅ |
| Upgrade Kit | 🔧 From CORE One | 🔧 From MK4, MK3.5 |
| Materials | PLA, PETG, ABS, ASA, TPU, PA, PC | PLA, PETG, ABS, ASA, TPU, PA, PC |
| Released | Jan 16, 2026 | Mar 20, 2024 |
| Cycle length | ~310 days | ~730 days |
| Cycle advice | Buy | Upgrade Kit |
| Deals advice | Caution | Buy |
| Next model | — | Prusa MK5 (Expected 2027) |
The CORE One+ matches Bambu CoreXY speed (600 mm/s) while keeping everything open source — firmware, hardware, slicing profiles.
Unlike Bambu's closed ecosystem, every component of the CORE One+ can be modified, repaired, or community-improved.
Existing MMU3 units and the new MMU3 for CORE One bring 5-color multicolor printing to the CoreXY platform.
MK4 and MK3.5 owners can upgrade to MK4S specs without purchasing a whole new printer. This is Prusa's commitment to owners and is unique in the industry at this level.
Firmware, PCB schematics, hardware designs, and slicing profiles are all published under open licenses. You own the printer completely.
Prusa's forum, knowledge base, and repair guides are unmatched. Parts are stocked and available for years after purchase.