The Anycubic Kobra S1 Max (professional) and Snapmaker U1 (prosumer) come from different brands and sit in different tiers, so this is less a head-to-head than a question of how much printer you need. Both are CoreXY printers with 4-slot multicolor and automatic calibration. The U1 costs $100 more and gets you an open-source design and support for PCTG; the Kobra S1 Max answers with an enclosed chamber (with ABS, ASA, PA, PA-CF, PC and PET-CF on its materials list) and 118% more build volume.
First-generation product — recently released, still early days
Best for: Professional makers and small studios who need large-format enclosed printing for engineering filaments at a competitive price — and want Anycubic's ecosystem over Creality or Qidi alternatives.
Full details →First-generation product — recently released, still early days
Best for: Multicolor and multi-material hobbyists who want a true tool changer (four separate hotends, soluble supports, TPU and PLA in one print) for well under $1,000, and tinkerers who value Klipper-based firmware they can inspect and modify.
Full details →| Anycubic Kobra S1 Max | Snapmaker U1 | |
|---|---|---|
| Pricing | ||
| Starting Price | ★ $799 | $899 |
| Print Specs | ||
| Tier | Professional | Prosumer |
| Motion | CoreXY | CoreXY |
| Build Volume | ★ 350 × 350 × 350 mm | 270 × 270 × 270 mm |
| Max Speed | ★ 600 mm/s | 500 mm/s |
| Multicolor | ✅ 4 slots | ✅ 4 slots |
| Enclosure | ★ ✅ | ❌ |
| Auto Calibration | ✅ | ✅ |
| Open Source | ❌ | ★ ✅ |
| Upgrade Kit | — | — |
| Buy Timing | ||
| Released | Nov 25, 2025 | Apr 10, 2026 |
| Cycle length | — | — |
| Cycle advice | Buy | Buy |
| Deals advice | Buy | Buy |
| Next model | — | — |
The Kobra S1 Max was released on Nov 25, 2025, 352 days ago. It is a first-generation product, so there is no earlier cycle to predict its successor from.
The U1 was released on Apr 10, 2026, 216 days ago. It is a first-generation product, so there is no earlier cycle to predict its successor from.
Both are early enough in their cycles that timing should not decide this one. The Kobra S1 Max launched 352 days ago and the U1 launched 216 days ago. Pick on features and price.
Cycle and deal status as of November 12, 2026. See the launch calendar →
The Kobra S1 Max lists at $799 and the U1 at $899 — $100 apart, so the U1 costs 13% more.
Per litre of build volume, that works out to $19 for the Kobra S1 Max versus $46 for the U1 — the Kobra S1 Max is both cheaper and roomier, so it wins on value outright.
With both in sale windows until Dec 5, 2026, this is a good moment to buy either — compare the live sale prices before you decide.
Our pick for most buyers is the Kobra S1 Max, for an enclosed chamber (with ABS, ASA, PA, PA-CF, PC and PET-CF on its materials list) and 118% more build volume. Go for the U1 instead if you want an open-source printer you can modify and repair yourself — the Kobra S1 Max is not open source.
How we judge timing and deals: read our methodology →
One of the largest enclosed build volumes in the prosumer/professional tier — suited for large engineering parts, architectural models, and batch production.
Maintaining 65°C across a 350×350 mm chamber is a meaningful technical achievement — ensuring consistent results for ABS, ASA, and PA across the full build plate.
The S1 Max extends the Kobra ecosystem into the large-format enclosed segment, enabling Anycubic users to scale up without switching brands.
Each filament has its own preheated hotend, and swaps take about 5 seconds. Multicolor prints skip the purge tower and filament waste of single-nozzle switching systems.
Separate hotends mean PLA with PVA or breakaway supports, or rigid PLA with TPU, in one print. Single-nozzle multicolor systems handle these combinations poorly.
Snapmaker has published its Klipper, Moonraker and Fluidd forks on GitHub, and Snapmaker Orca is built on Orca Slicer. There is already an active community firmware project. RFID filament recognition stays proprietary.