The Bambu Lab H2S and Prusa Research CORE One L+ are both professional-tier printers, but the CORE One L+ costs 1.6× as much — so the question is what the extra money buys. Both are enclosed CoreXY printers with automatic calibration. The CORE One L+ costs $750 more and gets you an open-source design; the H2S answers with a top speed of 1,000 mm/s (vs 500) and 4-slot multicolor.
Mid-cycle — watch for announcements before buying
Best for: Professional makers and studios who need Bambu's largest enclosed build volume for high-throughput production, engineering materials, and optional AMS multicolor — without the complexity of dual-nozzle printing.
Full details →Early in release cycle — no urgency to wait
🔧 Upgrade kit available — from CORE One L
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 →| Bambu Lab H2S | Prusa Research CORE One L+ | |
|---|---|---|
| Pricing | ||
| Starting Price | ★ $1,249 | $1,999 |
| Print Specs | ||
| Tier | Professional | Professional |
| Motion | CoreXY | CoreXY |
| Build Volume | ★ 340 × 320 × 340 mm | 300 × 300 × 330 mm |
| Max Speed | ★ 1000 mm/s | 500 mm/s |
| Multicolor | ★ ✅ 4 slots | ❌ No |
| Enclosure | ✅ | ✅ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ★ ✅ |
| Upgrade Kit | — | 🔧 From CORE One L |
| Buy Timing | ||
| Released | Aug 26, 2025 | Aug 13, 2026 |
| Cycle length | ~730 days | ~279 days |
| Cycle advice | Caution | Buy |
| Deals advice | Buy | Caution |
| Next model | — | — |
The H2S was released on Aug 26, 2025, 443 days ago. Its previous release cycle ran about 730 days, so it is 61% of the way through — roughly 287 days before a successor would be due at that pace.
The CORE One L+ was released on Aug 13, 2026, 91 days ago. Its previous release cycle ran about 279 days, so it is 33% of the way through — roughly 188 days before a successor would be due at that pace.
On timing alone, the CORE One L+ is the safer buy right now — it is only 33% of the way through its expected cycle, while the H2S is mid-cycle (61% through).
Cycle and deal status as of November 12, 2026. See the launch calendar →
The H2S lists at $1,249 and the CORE One L+ at $1,999 — $750 apart, so the CORE One L+ costs 60% more.
Per litre of build volume, that works out to $34 for the H2S versus $67 for the CORE One L+ — the H2S is both cheaper and roomier, so it wins on value outright.
If you are buying before Dec 5, 2026, the active sale tips value toward the H2S.
Our pick for most buyers is the H2S, for a lower price ($750 less) and a top speed of 1,000 mm/s (vs 500), plus a higher editor score (9.1 vs 8.6). Go for the CORE One L+ instead if you want an open-source printer you can modify and repair yourself — the H2S is not open source. The H2S is also in a sale window right now (Bambu Black Friday 2026, until Dec 5, 2026).
How we judge timing and deals: read our methodology →
The H2S offers more than twice the print volume of the X2D. At 1000 mm/s it is also among Bambu's fastest printers, making it the top choice for high-throughput professional production.
The enclosed chamber with active heating handles the full engineering filament spectrum — ABS, ASA, PA, PA-CF, PC, and PPS — with consistent results across the full build plate.
The H2S supports up to 12 AMS units (4 AMS 2 Pro + 8 AMS HT), enabling 24-filament printing for large-format multicolor production.
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.