aicanrun

LongCat Flash Chat

At the default IQ1_S, 0 of 139 phones have enough estimated usable memory; 0 also reach 3+ tokens/s. On Mac, 4 of 54 exact configurations pass using that quant or a smaller tracked fallback.

Params
561.9B (27B active)
Family
longcat
Released
2025-08
Tags
chat · coding · reasoning
Weights
LongCat-Flash-Chat-GGUF ↗

Downloads & memory by quant

The download is only the weights — add KV cache and runtime to get what your phone actually needs. “Memory-fit” only means it can load; “usable” also requires an estimated 3+ tokens/s. Each row uses that row's quant. ★ = recommended.

QuantDownloadMemory neededPhone reality
IQ1_S ★114 GB~159.6 GB0 memory-fit

LongCat Flash Chat at IQ1_S on 139 phones

This table is fixed to the recommended IQ1_S, on each phone's largest RAM option. Counts for smaller quants above will differ. All phones are shown, sorted by fit and estimated experience; tap one for the full report.

PhoneChip · RAMNeedsSpeedVerdict
Galaxy S25 UltraSnapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
Galaxy S25Snapdragon 8 Elite · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy S24 UltraSnapdragon 8 Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy S24Samsung Exynos 2400 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy S23 UltraSnapdragon 8 Gen 2 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy A55Exynos 1480 · 12 GB159.6 / 9 GB—✕ Won't fit
iPhone 16 Pro MaxApple A18 Pro · 8 GB159.6 / 5.2 GB—✕ Won't fit
iPhone 16 ProApple A18 Pro · 8 GB159.6 / 5.2 GB—✕ Won't fit
iPhone 16Apple A18 · 8 GB159.6 / 5.2 GB—✕ Won't fit
iPhone 15 ProApple A17 Pro · 8 GB159.6 / 5.2 GB—✕ Won't fit
iPhone 15Apple A16 Bionic · 6 GB159.6 / 3.9 GB—✕ Won't fit
iPhone 14Apple A15 Bionic · 6 GB159.6 / 3.9 GB—✕ Won't fit
Pixel 9 ProGoogle Tensor G4 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel 9Google Tensor G4 · 12 GB159.6 / 9 GB—✕ Won't fit
Pixel 8 ProGoogle Tensor G3 · 12 GB159.6 / 9 GB—✕ Won't fit
Pixel 8aGoogle Tensor G3 · 8 GB159.6 / 6 GB—✕ Won't fit
OnePlus 13Snapdragon 8 Elite · 24 GB159.6 / 20 GB—✕ Won't fit
OnePlus 12Snapdragon 8 Gen 3 · 24 GB159.6 / 20 GB—✕ Won't fit
Xiaomi 15 ProSnapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
Xiaomi 14Snapdragon 8 Gen 3 · 16 GB159.6 / 12 GB—✕ Won't fit
Redmi Note 13 ProSnapdragon 7s Gen 2 · 12 GB159.6 / 9 GB—✕ Won't fit
POCO X6 ProDimensity 8300 Ultra · 12 GB159.6 / 9 GB—✕ Won't fit
OPPO Find X8 ProDimensity 9400 · 16 GB159.6 / 12 GB—✕ Won't fit
vivo X200 ProDimensity 9400 · 16 GB159.6 / 12 GB—✕ Won't fit
vivo X100 ProDimensity 9300 · 16 GB159.6 / 12 GB—✕ Won't fit
ROG Phone 9 ProSnapdragon 8 Elite · 24 GB159.6 / 20 GB—✕ Won't fit
Nothing Phone (3)Snapdragon 8s Gen 4 · 16 GB159.6 / 12 GB—✕ Won't fit
Nothing Phone (2a)Dimensity 7200 Pro · 12 GB159.6 / 9 GB—✕ Won't fit
Motorola Edge 50 UltraSnapdragon 8s Gen 3 · 16 GB159.6 / 12 GB—✕ Won't fit
HONOR Magic7 ProSnapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
iPhone 17Apple A19 · 8 GB159.6 / 5.2 GB—✕ Won't fit
iPhone AirApple A19 Pro · 12 GB159.6 / 7.8 GB—✕ Won't fit
iPhone 17 ProApple A19 Pro · 12 GB159.6 / 7.8 GB—✕ Won't fit
iPhone 17 Pro MaxApple A19 Pro · 12 GB159.6 / 7.8 GB—✕ Won't fit
Galaxy S26Snapdragon 8 Elite Gen 5 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy S26+Snapdragon 8 Elite Gen 5 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy S26 UltraSnapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
Galaxy S26 FEExynos 2500 · 8 GB159.6 / 6 GB—✕ Won't fit
Xiaomi 17Snapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
Xiaomi 17 ProSnapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
OnePlus 15Snapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
vivo X300 ProDimensity 9500 · 16 GB159.6 / 12 GB—✕ Won't fit
vivo X300 ESnapdragon 8 Gen 5 · 12 GB159.6 / 9 GB—✕ Won't fit
OPPO Find X9 ProDimensity 9500 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel 10Google Tensor G5 · 12 GB159.6 / 9 GB—✕ Won't fit
Pixel 10 ProGoogle Tensor G5 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel 11Google Tensor G6 · 12 GB159.6 / 9 GB—✕ Won't fit
Pixel 11 ProGoogle Tensor G6 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel 11 Pro XLGoogle Tensor G6 · 16 GB159.6 / 12 GB—✕ Won't fit
iPhone 16eApple A18 · 8 GB159.6 / 5.2 GB—✕ Won't fit
Pixel 9aGoogle Tensor G4 · 8 GB159.6 / 6 GB—✕ Won't fit
Galaxy S25 FESamsung Exynos 2400 · 8 GB159.6 / 6 GB—✕ Won't fit
Nothing Phone (3a)Snapdragon 7s Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy A16 5GExynos 1330 · 8 GB159.6 / 6 GB—✕ Won't fit
Galaxy A17 5GExynos 1330 · 8 GB159.6 / 6 GB—✕ Won't fit
Galaxy A26 5GExynos 1380 · 8 GB159.6 / 6 GB—✕ Won't fit
Galaxy A36 5GSnapdragon 6 Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy A56 5GExynos 1580 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy Z Fold6Snapdragon 8 Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy Z Flip6Snapdragon 8 Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy Z Fold7Snapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
Galaxy Z Flip7Exynos 2500 · 12 GB159.6 / 9 GB—✕ Won't fit
Moto G (2025)Dimensity 6300 · 8 GB159.6 / 6 GB—✕ Won't fit
Moto G Power (2025)Dimensity 6300 · 8 GB159.6 / 6 GB—✕ Won't fit
Moto G Stylus (2025)Snapdragon 6 Gen 3 · 8 GB159.6 / 6 GB—✕ Won't fit
Moto G (2026)Dimensity 6300 · 4 GB159.6 / 2 GB—✕ Won't fit
Moto G Power (2026)Dimensity 6300 · 8 GB159.6 / 6 GB—✕ Won't fit
Moto G Stylus (2026)Snapdragon 6 Gen 3 · 8 GB159.6 / 6 GB—✕ Won't fit
Motorola Razr (2025)Dimensity 7400X · 8 GB159.6 / 6 GB—✕ Won't fit
Motorola Razr Ultra (2025)Snapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
OnePlus 13RSnapdragon 8 Gen 3 · 16 GB159.6 / 12 GB—✕ Won't fit
OnePlus 15RSnapdragon 8 Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel 9 Pro XLGoogle Tensor G4 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel 10 Pro XLGoogle Tensor G5 · 16 GB159.6 / 12 GB—✕ Won't fit
iPhone 17eApple A19 · 8 GB159.6 / 5.2 GB—✕ Won't fit
Pixel 10aGoogle Tensor G4 · 8 GB159.6 / 6 GB—✕ Won't fit
Galaxy A57 5GExynos 1680 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy A37 5GExynos 1480 · 12 GB159.6 / 9 GB—✕ Won't fit
Motorola Razr (2026)Dimensity 7450X · 8 GB159.6 / 6 GB—✕ Won't fit
Motorola Razr+ (2026)Snapdragon 8s Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Motorola Razr Ultra (2026)Snapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
Motorola Edge (2026)Dimensity 7450 · 8 GB159.6 / 6 GB—✕ Won't fit
Nothing Phone (4a) ProSnapdragon 7 Gen 4 · 12 GB159.6 / 9 GB—✕ Won't fit
RedMagic 11 AirSnapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
RedMagic 11S ProSnapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
Redmi Note 14 Pro 5GDimensity 7300 · 12 GB159.6 / 9 GB—✕ Won't fit
Redmi Note 15 Pro 5GDimensity 7400 Ultra · 12 GB159.6 / 9 GB—✕ Won't fit
Redmi Note 15 5GSnapdragon 6 Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Redmi Note 14 Pro+ 5GSnapdragon 7s Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Redmi Note 15 Pro+ 5GSnapdragon 7s Gen 4 · 12 GB159.6 / 9 GB—✕ Won't fit
Xiaomi 15TDimensity 8400 Ultra · 12 GB159.6 / 9 GB—✕ Won't fit
Xiaomi 15T ProDimensity 9400+ · 12 GB159.6 / 9 GB—✕ Won't fit
POCO X7 ProDimensity 8400 Ultra · 12 GB159.6 / 9 GB—✕ Won't fit
Xiaomi MIX Fold 2Snapdragon 8+ Gen 1 · 12 GB159.6 / 9 GB—✕ Won't fit
Honor 400Snapdragon 7 Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Honor Magic8 ProSnapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
CMF Phone 2 ProDimensity 7300 · 8 GB159.6 / 6 GB—✕ Won't fit
AQUOS sense10Snapdragon 7s Gen 3 · 8 GB159.6 / 6 GB—✕ Won't fit
AQUOS sense9Snapdragon 7s Gen 2 · 8 GB159.6 / 6 GB—✕ Won't fit
AQUOS R10Snapdragon 7+ Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Xperia 10 VIISnapdragon 6 Gen 3 · 8 GB159.6 / 6 GB—✕ Won't fit
Xperia 1 VIISnapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
Xperia 1 VIIISnapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
Galaxy Z Fold8Snapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
Galaxy Z Fold8 UltraSnapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
Galaxy Z Flip8Samsung Exynos 2600 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy Z Fold5Snapdragon 8 Gen 2 · 12 GB159.6 / 9 GB—✕ Won't fit
Galaxy Z Flip5Snapdragon 8 Gen 2 · 8 GB159.6 / 6 GB—✕ Won't fit
Xiaomi MIX Fold 3Snapdragon 8 Gen 2 · 16 GB159.6 / 12 GB—✕ Won't fit
Xiaomi MIX Fold 4Snapdragon 8 Gen 3 · 16 GB159.6 / 12 GB—✕ Won't fit
Xiaomi MIX FlipSnapdragon 8 Gen 3 · 16 GB159.6 / 12 GB—✕ Won't fit
Xiaomi MIX Flip 2Snapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
Honor Magic V2Snapdragon 8 Gen 2 · 16 GB159.6 / 12 GB—✕ Won't fit
Honor Magic V3Snapdragon 8 Gen 3 · 16 GB159.6 / 12 GB—✕ Won't fit
Honor Magic V5Snapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
Honor Magic V6Snapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
HONOR Robot PhoneSnapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
OPPO Find N3Snapdragon 8 Gen 2 · 16 GB159.6 / 12 GB—✕ Won't fit
OnePlus OpenSnapdragon 8 Gen 2 · 16 GB159.6 / 12 GB—✕ Won't fit
OPPO Find N5Snapdragon 8 Elite · 16 GB159.6 / 12 GB—✕ Won't fit
OPPO Find N6Snapdragon 8 Elite Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
vivo X Fold3Snapdragon 8 Gen 2 · 16 GB159.6 / 12 GB—✕ Won't fit
vivo X Fold3 ProSnapdragon 8 Gen 3 · 16 GB159.6 / 12 GB—✕ Won't fit
vivo X Fold5Snapdragon 8 Gen 3 · 16 GB159.6 / 12 GB—✕ Won't fit
vivo X Fold6Dimensity 9500 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel FoldTensor G2 · 12 GB159.6 / 9 GB—✕ Won't fit
Pixel 9 Pro FoldGoogle Tensor G4 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel 10 Pro FoldGoogle Tensor G5 · 16 GB159.6 / 12 GB—✕ Won't fit
Pixel 11 Pro FoldGoogle Tensor G6 · 16 GB159.6 / 12 GB—✕ Won't fit
Huawei Mate X6Kirin 9020 · 16 GB159.6 / 12 GB—✕ Won't fit
Huawei Mate X7Kirin 9030 Pro · 20 GB159.6 / 16 GB—✕ Won't fit
Motorola Razr+ (2023)Snapdragon 8+ Gen 1 · 12 GB159.6 / 9 GB—✕ Won't fit
Motorola Razr (2024)Dimensity 7300X · 12 GB159.6 / 9 GB—✕ Won't fit
Motorola Razr+ (2024)Snapdragon 8s Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Motorola Razr+ (2025)Snapdragon 8s Gen 3 · 12 GB159.6 / 9 GB—✕ Won't fit
Motorola Razr FoldSnapdragon 8 Gen 5 · 16 GB159.6 / 12 GB—✕ Won't fit
Redmi Note 17Snapdragon 4 Gen 4 · 8 GB159.6 / 6 GB—✕ Won't fit
vivo S2Dimensity 7360-Turbo · 8 GB159.6 / 6 GB—✕ Won't fit
iQOO Z11 LiteDimensity 6300 · 8 GB159.6 / 6 GB—✕ Won't fit

~ = bandwidth-based estimate · ✓ = measured on real hardware

LongCat Flash Chat on 54 Mac configurations

Each Mac uses the recommended IQ1_S at 4K context when it fits, or the largest smaller tracked quant that fits. Each row links to the full report with a macOS-specific setup guide.

MacUnified memoryQuantWorking budgetNeedsEstimated speedVerdict
Mac Studio M5 Ultra512 GBIQ1_S504 GB159.8 GB~109.5–153.3 tokens/s✓ Runs great
Mac Studio M3 Ultra512 GBIQ1_S504 GB159.8 GB~74.8–104.7 tokens/s✓ Runs great
Mac Studio M5 Ultra256 GBIQ1_S248 GB159.8 GB~109.5–153.3 tokens/s✓ Runs great
Mac Studio M3 Ultra256 GBIQ1_S248 GB159.8 GB~74.8–104.7 tokens/s✓ Runs great
Mac Studio M5 Max128 GBIQ1_S120 GB159.8 GB—✕ Won't fit
MacBook Pro M5 Max128 GBIQ1_S120 GB159.8 GB—✕ Won't fit
Mac Studio M4 Max128 GBIQ1_S120 GB159.8 GB—✕ Won't fit
MacBook Pro M4 Max128 GBIQ1_S120 GB159.8 GB—✕ Won't fit
MacBook Pro M3 Max128 GBIQ1_S120 GB159.8 GB—✕ Won't fit
Mac Studio M5 Ultra96 GBIQ1_S88 GB159.8 GB—✕ Won't fit
Mac Studio M3 Ultra96 GBIQ1_S88 GB159.8 GB—✕ Won't fit
Mac mini M5 Pro64 GBIQ1_S57.6 GB159.8 GB—✕ Won't fit
Mac Studio M5 Max64 GBIQ1_S57.6 GB159.8 GB—✕ Won't fit
MacBook Pro M5 Pro64 GBIQ1_S57.6 GB159.8 GB—✕ Won't fit
MacBook Pro M5 Max64 GBIQ1_S57.6 GB159.8 GB—✕ Won't fit
Mac Studio M4 Max64 GBIQ1_S57.6 GB159.8 GB—✕ Won't fit
Mac mini M4 Pro64 GBIQ1_S57.6 GB159.8 GB—✕ Won't fit
MacBook Pro M4 Max64 GBIQ1_S57.6 GB159.8 GB—✕ Won't fit
MacBook Pro M3 Max64 GBIQ1_S57.6 GB159.8 GB—✕ Won't fit
Mac mini M5 Pro48 GBIQ1_S43.2 GB159.8 GB—✕ Won't fit
Mac Studio M5 Max48 GBIQ1_S43.2 GB159.8 GB—✕ Won't fit
MacBook Pro M5 Pro48 GBIQ1_S43.2 GB159.8 GB—✕ Won't fit
Mac Studio M4 Max48 GBIQ1_S43.2 GB159.8 GB—✕ Won't fit
Mac mini M4 Pro48 GBIQ1_S43.2 GB159.8 GB—✕ Won't fit
MacBook Pro M4 Pro48 GBIQ1_S43.2 GB159.8 GB—✕ Won't fit
Mac Studio M5 Max36 GBIQ1_S32.4 GB159.8 GB—✕ Won't fit
MacBook Pro M5 Max36 GBIQ1_S32.4 GB159.8 GB—✕ Won't fit
Mac Studio M4 Max36 GBIQ1_S32.4 GB159.8 GB—✕ Won't fit
MacBook Pro M4 Max36 GBIQ1_S32.4 GB159.8 GB—✕ Won't fit
MacBook Pro M3 Pro36 GBIQ1_S32.4 GB159.8 GB—✕ Won't fit
MacBook Pro M3 Max36 GBIQ1_S32.4 GB159.8 GB—✕ Won't fit
Mac mini M632 GBIQ1_S28.8 GB159.8 GB—✕ Won't fit
Mac mini M5 Pro32 GBIQ1_S28.8 GB159.8 GB—✕ Won't fit
MacBook Air M532 GBIQ1_S28.8 GB159.8 GB—✕ Won't fit
MacBook Air M432 GBIQ1_S28.8 GB159.8 GB—✕ Won't fit
Mac mini M432 GBIQ1_S28.8 GB159.8 GB—✕ Won't fit
Mac mini M624 GBIQ1_S21 GB159.8 GB—✕ Won't fit
Mac mini M5 Pro24 GBIQ1_S21 GB159.8 GB—✕ Won't fit
MacBook Air M524 GBIQ1_S21 GB159.8 GB—✕ Won't fit
MacBook Pro M5 Pro24 GBIQ1_S21 GB159.8 GB—✕ Won't fit
MacBook Air M424 GBIQ1_S21 GB159.8 GB—✕ Won't fit
Mac mini M424 GBIQ1_S21 GB159.8 GB—✕ Won't fit
Mac mini M4 Pro24 GBIQ1_S21 GB159.8 GB—✕ Won't fit
MacBook Air M324 GBIQ1_S21 GB159.8 GB—✕ Won't fit
MacBook Pro M4 Pro24 GBIQ1_S21 GB159.8 GB—✕ Won't fit
MacBook Pro M3 Pro18 GBIQ1_S15 GB159.8 GB—✕ Won't fit
Mac mini M616 GBIQ1_S13 GB159.8 GB—✕ Won't fit
MacBook Air M516 GBIQ1_S13 GB159.8 GB—✕ Won't fit
MacBook Air M416 GBIQ1_S13 GB159.8 GB—✕ Won't fit
Mac mini M416 GBIQ1_S13 GB159.8 GB—✕ Won't fit
MacBook Air M316 GBIQ1_S13 GB159.8 GB—✕ Won't fit
MacBook Air M116 GBIQ1_S13 GB159.8 GB—✕ Won't fit
MacBook Neo A18 Pro8 GBIQ1_S5 GB159.8 GB—✕ Won't fit
MacBook Air M18 GBIQ1_S5 GB159.8 GB—✕ Won't fit

FAQ

How much RAM do I need to run LongCat Flash Chat on a phone?

At IQ1_S, LongCat Flash Chat needs ~159.6GB of usable memory (weights + KV cache + runtime). In practice that means no current Android phone or no current iPhone — iOS lets a single app use less of its RAM than Android does.

How fast does LongCat Flash Chat run on a flagship phone?

It doesn't fit on any of the 139 phones we track at IQ1_S — it needs ~159.6GB of usable memory.

Can an iPhone run LongCat Flash Chat?

Not really: the best iPhone we track (iPhone 16 Pro Max) has ~5.2GB usable, but LongCat Flash Chat needs 159.6GB at IQ1_S.

What is the best quantization of LongCat Flash Chat for mobile?

IQ1_S (114GB download) is the size/quality sweet spot. Total memory needed is ~159.6GB once the KV cache and runtime are counted — the download size alone understates it.

How many phones can run LongCat Flash Chat?

0 of the 139 phones we track have enough estimated usable memory at IQ1_S; 0 also reach our usable-speed threshold of 3 tokens/s, and 0 run smoothly. Memory-fit alone does not mean a good experience.

Which Macs can run LongCat Flash Chat?

4 of the 54 exact Mac configurations we track have enough estimated working memory. Each Mac uses the recommended IQ1_S when it fits, or the largest smaller tracked quant that fits, and separates installed unified memory, the macOS reserve, and estimated speed.

What is LongCat Flash Chat good for on a phone?

It's tagged for chat, coding, reasoning. At 561.9B parameters (27B active — it's a MoE, so it decodes faster than its size suggests), it prioritizes answer quality over speed — expect slower decoding.

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