Overview
The Glorious GPBT Celestial Fire is a 114-key keycap set built for ANSI mechanical keyboards. The short version: if you already own an ANSI (US-layout) board with Cherry MX-compatible switches, this is a low-risk way to upgrade both looks and durability.
If you use an ISO or Japanese layout, it will leave you with keys that simply do not fit.
The Celestial Fire colorway pairs a black base with red and orange accents — warm, high-contrast, and more at home on a dark desk than a white one. The caps use thick PBT plastic, which resists shine and wear far better than ABS and produces a lower, more muted typing sound.
On Amazon.co.jp the set carries 204 reviews at 4.5 out of 5 stars (90% positive) as of September 2026.
For a category where the answer is usually a binary "it fits or it doesn't," that is a solid and unusually well-documented track record.
Fit Check in 30 Seconds
| Your situation | Verdict |
|---|---|
| Glorious GMMK1 / GMMK2 / GMMK PRO | Ideal — the intended pairing |
| ANSI layout, Cherry MX-style (cross) stems | Compatible; check odd key widths |
| Full-size / TKL / 65% / 60% standard layouts | 114 keys cover these |
| ISO or Japanese (JIS) layout | Not supported — skip it |
| Topre or ALPS switches | Different stem shape; will not mount |
| Optical or magnetic (Hall effect) boards | Works only if stems are MX-compatible |
Only two things decide the outcome: layout and stem shape. Get those right and brand does not matter.
Compatibility Guide
This is a keycap set, so there is no cable, wireless mode, or firmware to worry about — physical fit is everything. The two requirements are an ANSI (US) layout and Cherry MX-compatible stems.
Supported form factors are listed as full-size, tenkeyless, and compact (60%, 65%, 75%). With 114 caps, a full-size board is covered with a small surplus, while a 60% board leaves a large pile of spares.
The profile is OEM, the common stepped profile used on most prebuilt keyboards. It sits slightly taller than Cherry profile and much lower than SA, so expect a small change in typing angle if you are switching from Cherry caps.
The listed keycap height is 25mm; treat that as a representative figure for the set rather than a per-key measurement.
ISO layouts and non-Cherry MX switches are explicitly unsupported. JIS layouts fall outside the set too: the Enter shape, right Shift width, and the cluster around the spacebar are all different, so partial use is not a practical workaround.
One detail people miss is odd key widths. Even among ANSI boards, some compact models use a 1.75u right Shift, a 7u spacebar instead of 6.25u, or a nonstandard bottom row.
Check your bottom row and right Shift before ordering — that is where leftover stock caps usually come from.
Product Info
Released in late 2021, the set's core specs are:
| Item | Value |
|---|---|
| Key count | 114 |
| Material | PBT |
| Legend method | Double-shot molding |
| Profile | OEM |
| Layout | ANSI (US) |
| Keycap height | 25mm |
PBT resists finger oils and stays textured far longer than ABS, which typically starts shining within six to twelve months of daily use. Double-shot molding forms the legends from a second piece of plastic rather than printing them, so the characters cannot wear off.
Price was ￥12,900 on both Amazon JP and Amazon US as captured on 17 September 2026 (ASIN: B09MDGKCWF). That places it in the mid-to-upper tier for keycap sets, and street price moves with stock, currency, and sales.
Always confirm the current price on the product page — this article will not update itself. eBay listings are an option for used or parallel-import stock, but read the condition notes carefully.
The package contains only the 114 keycaps — no keycap puller. A wire puller costs very little and is gentler on cap sidewalls than a plastic ring puller.
Warranty follows the manufacturer's standard terms, typically one year against manufacturing defects.
Best Use Cases
- First-time keycap swappers. 114 keys cover standard layouts from full-size down to 60%, which avoids the classic first-attempt problem of missing caps. PBT's shine resistance means the upgrade keeps looking new.
- Glorious GMMK owners (GMMK1, GMMK2, GMMK PRO). Same-vendor sets remove nearly all layout guesswork.
- Desk-aesthetics builders. The black/red/orange scheme reads best against dark desks and pairs naturally with warm-toned cables and mats.
- Anyone chasing a quieter, deeper sound. Thick PBT damps the high-pitched ring of thin ABS, and it stacks well with silent switches or foam.
Before You Buy
Layout is the deal-breaker. If your Enter key is an inverted L rather than a wide rectangle, this set is not for you.
The mismatch covers Enter, right Shift, and the keys around the spacebar, so "use most of it" is not a realistic compromise.
Verify your stems. Topre and ALPS switches physically cannot take MX caps.
Many modern magnetic (Hall effect) and optical boards do use MX-compatible stems, but some use proprietary shapes. Check your specific model rather than assuming.
Do not buy this for RGB. Thick PBT blocks light by design.
If backlight glow is the priority, choose a set that explicitly advertises shine-through legends, and inspect real product photos before ordering.
Expect an adjustment period. Moving to OEM profile changes finger travel and wrist angle.
A few days of adaptation is normal, not a defect — adjusting palm rest height usually resolves it.
Mind the stabilized keys. Spacebar, Enter, right Shift, Backspace, and the numpad 0 and + sit on stabilizers.
Pull and seat them vertically and slowly, or the stabilizer wire pops out and you get a rattle.
Finally, listing data can drift from the physical product. Marketplace metadata changes for reasons that have nothing to do with the manufacturer, so cross-check the colorway name, the ANSI designation, and the product photos before you order.
Prices shown here are capture-time values and should be re-verified at checkout.
How to Compare It Against Alternatives
Keycap shopping goes faster as elimination than as spec comparison. Filter by layout first (ANSI / ISO / JIS), then by profile (OEM / Cherry / SA / XDA) to set the typing feel, then by material and legend method (PBT double-shot / PBT dye-sub / ABS) for durability and color range.
The Glorious GPBT Celestial Fire lands on the most standard point of all three axes — not an adventurous pick, and correspondingly hard to get wrong.
Also consider whether a new board serves you better. Keycaps change appearance, surface texture, and sound character; they do not change actuation behavior.
If rapid trigger, magnetic switches, or gasket-mounted acoustics are what you actually want, spend the money on the keyboard instead.
FAQ
Q. Will it work on a Japanese (JIS) keyboard? A.
No. Only ANSI (US) is supported, and ISO is explicitly excluded.
An inverted-L Enter key rules it out immediately.
Q. Does it work on non-Glorious keyboards? A.
Generally yes, on any ANSI board with Cherry MX-compatible stems. Boards with nonstandard spacebar or right Shift widths may leave a few keys unmatched.
Q. Do the legends glow with RGB? A.
Thick PBT is not a light-friendly material. Check real photos on the product page, and pick a shine-through set if backlighting is the point.
Q. Is a keycap puller included?
A. No. The box holds the 114 caps only. A wire puller is the safer tool for the job.
Q. Will all 114 keys be used? A.
On a standard ANSI board, nearly all of them. Boards with unusual bottom rows may keep a few stock caps.
Q. What does it cost? A.
￥12,900 as captured on 17 September 2026. Keycap pricing moves with stock and currency, so check the listing before buying.
Product Disclosure (Amazon)
- Manufacturer: GLORIOUS
- Seller: Amazon US
- Fulfilled by: Amazon US
- ASIN: B09MDGKCWF
- Note: This article covers a manufacturer-made product based on Amazon listing details.
