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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | Pixelcut | Bigjpg | Switch / compare |
|---|---|---|---|
| Background removal | 91/100 1080 × 1080 · PNG | Not tested in topic | Compare in task topic → |
| Image upscaling | 89/100 1024×1024 (PNG · 2.0x Fast Upscale) · Historical description; output not attached | 89/100 2048 × 2048 · PNG | Active task |
| Object removal | 88/100 1024×1024 (Unwatermarked PNG) · Historical description; output not attached | Not tested in topic | Compare in task topic → |
| Image generation | 87/100 1600×1600 (Unwatermarked PNG/JPEG) · Historical description; output not attached | Not tested in topic | Compare in task topic → |
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Browse this task →| Criterion | Pixelcut (Fast Upscale AI) Image upscaling 89/100 Seven-aspect task score Login-free, ad-free 2× watermark-free downloads are fast; free daily downloads are limited and 4× requires Pro. Tested export 1024×1024 (PNG · 2.0x Fast Upscale) · Historical description; output not attached Historical test · 2026-10-16 | Bigjpg (AI Super-Resolution Image Enlarger) Image upscaling 89/100 Seven-aspect task score Free login-free 4× output offers adjustable denoising and clear upgrade limits; detail is retained well, with about 18.5 seconds of free processing in this run. Tested export 2048 × 2048 · PNG Historical test · 2026-10-17 |
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| Pricing & rules | ||
| Pricing plans | Web Free, Pro and all eight Business volumes with monthly/annual selection; API separate · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-20 ↗ Free Free Free Limited background removal; watermark-free export, exact count unspecified Pro2026-10-20 ↗ USD 10/month USD 96/year Monthly Unlimited removal; 600 AI credits/month; 3-person team; 1,000 batch exports/month Annual Unlimited removal; 600 AI credits/month; 3-person team; 1,000 batch exports/month Rules [1] Business 3,6002026-10-20 ↗ USD 30/month USD 288/year Monthly Unlimited removal; 3,600 AI credits/month; 10-person team; 2,000 batch exports/month Annual Unlimited removal; 3,600 AI credits/month; 10-person team; 2,000 batch exports/month Rules [1] Business 9,0002026-10-20 ↗ USD 60/month USD 576/year Monthly Unlimited removal; 9,000 AI credits/month; 20-person team; 5,000 batch exports/month Annual Unlimited removal; 9,000 AI credits/month; 20-person team; 5,000 batch exports/month Rules [1] Business 18,0002026-10-20 ↗ USD 120/month USD 1,152/year Monthly Unlimited removal; 18,000 AI credits/month; 20-person team; 10,000 batch exports/month Annual Unlimited removal; 18,000 AI credits/month; 20-person team; 10,000 batch exports/month Rules [1] Business 36,0002026-10-20 ↗ USD 240/month USD 2,304/year Monthly Unlimited removal; 36,000 AI credits/month; 20-person team; 20,000 batch exports/month Annual Unlimited removal; 36,000 AI credits/month; 20-person team; 20,000 batch exports/month Rules [1] Business 72,0002026-10-20 ↗ USD 480/month USD 4,608/year Monthly Unlimited removal; 72,000 AI credits/month; 20-person team; 40,000 batch exports/month Annual Unlimited removal; 72,000 AI credits/month; 20-person team; 40,000 batch exports/month Rules [1] Business 108,0002026-10-20 ↗ USD 720/month USD 6,912/year Monthly Unlimited removal; 108,000 AI credits/month; 20-person team; 40,000 batch exports/month Annual Unlimited removal; 108,000 AI credits/month; 20-person team; 40,000 batch exports/month Rules [1] Business 144,0002026-10-20 ↗ USD 960/month USD 9,216/year Monthly Unlimited removal; 144,000 AI credits/month; 20-person team; 60,000 batch exports/month Annual Unlimited removal; 144,000 AI credits/month; 20-person team; 60,000 batch exports/month Rules [1] Business 180,0002026-10-20 ↗ USD 1,200/month USD 11,520/year Monthly Unlimited removal; 180,000 AI credits/month; 20-person team; 80,000 batch exports/month Annual Unlimited removal; 180,000 AI credits/month; 20-person team; 80,000 batch exports/month Rules [1] 19 plan / billing-period records, all listed; — means that period is not recorded. Annual charges for Pro and all eight Business volumes were verified separately in Stripe checkout. Unlimited paid removal coexists with batch-export limits. The free tier still says Limited without an exact removal count; it is not treated as unlimited. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancel anytime; refund eligibility unverified. Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ Annual USD checkout summaries for each volume ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ · Capture 4 ↗ · Capture 5 ↗ · Capture 6 ↗ · Capture 7 ↗ · Capture 8 ↗ · Capture 9 ↗ | Bigjpg web and app plans (Free / Basic 2-month / Standard half-year / Pro annual); CNY · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-21 ↗ Free Free Free Available without login; 20 images/month, max 5 MB per file, up to 4x unwatermarked upscaling on shared servers. Basic (2 Months)2026-10-21 ↗ CNY 35 · one-time payment Usage / one-time Usage / one-time CNY 35 for 2 months (500 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. Valid for 2 months from purchase Standard (6 Months)2026-10-21 ↗ CNY 69/6 months Other period Other period CNY 69 for 6 months (1,000 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. Pro (1 Year)2026-10-21 ↗ — CNY 138/year Annual CNY 138 for 1 year (2,000 images/month); max 50 MB per image, up to 16x upscaling, dedicated high-performance server, and batch processing. 4 plan / billing-period records, all listed; — means that period is not recorded. The official pricing modal lists Free (20 images/month, max 5 MB, up to 4x upscaling) and three fixed-term tiers: Basic CNY 35 for 2 months (500 images/month), Standard CNY 69 for 6 months (1,000 images/month), and Pro CNY 138 for 1 year (2,000 images/month). All paid tiers unlock up to 16x upscaling, 50 MB upload size, priority high-performance servers, and batch processing via WeChat Pay, Alipay, or Stripe. Cancellation, sources & verification recordPurchased for fixed periods (2 months, 6 months, or 1 year) via WeChat Pay, Alipay, or Stripe under official Terms of Service. Bigjpg official website and pricing table modal ↗ · 2026-10-21 Capture 1 ↗ |
| Free & trial allowance on the test date | 3 free unwatermarked 2x (1024×1024) downloads per day with no login ('3 downloads left today' shown in menu); 4x requires Pro | Free tier allows 20 images/month up to 3000×3000px / 5MB at 2x or 4x with all 5 denoising levels and zero watermarks |
| Cancellation & refunds | Cancel anytime; refund eligibility unverified. | Purchased for fixed periods (2 months, 6 months, or 1 year) via WeChat Pay, Alipay, or Stripe under official Terms of Service. |
| Disclosure of costs & limits | Download menu transparently displays remaining daily quota ('3 downloads left today'), and clicking 4x opens a clear Pro pricing modal (04_4x_check.png) | 8x and 16x options are transparently disabled in the settings modal before processing starts |
| Task quality | ||
| Measured fixture results | Tested scale: 2× | Tested scale: 4× |
| Fixture findings | The tested 2× result had clear lettering without obvious artifacts, at 1024px. | The tested 4× photo configuration produced smooth output with text retained; other settings remain untested. |
| Original historical observation | PSNR=27.08dB · SSIM=0.8862 (2x 1024×1024 unwatermarked PNG); Edge gradient correlation edge_corr=0.6080 (+4.24% over Bicubic); high-frequency recovery hf_ratio=0.4716 (+10.65%); Calibration plate PSNR=15.54dB: clean 'REALTEST 2026' typography with zero ringing artifacts in just 2.64s. | Configured to Photo + 4x + Low Noise Reduction, Bigjpg exported a clean 2048×2048 PNG scoring PSNR = 28.27 dB and SSIM = 0.9790 with smooth tonal transitions and zero generative hallucinations. |
| Suitable uses · historical assessment | Users looking for the most consistent all-around free suite (no-login unwatermarked exports across BG Remover, T2I, and 2x Upscaler) | Users wanting a no-login, zero-watermark 4x (2048px) upscaler with 5-level adjustable noise reduction for photos and illustrations |
| Result & output evidence | No native output obtained; the preview does not establish final export quality. | |
| Delivery capabilities | ||
| Recorded export specifications | 1024×1024 (PNG · 2.0x Fast Upscale) · Historical description; output not attached · Check watermark record No native output is attached; check the evidence for specification and watermark claims. | 2048 × 2048 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 1024×1024 (PNG · 2.0x Fast Upscale) | 2048 × 2048 (Full 4x Unwatermarked PNG) |
| Watermark observation | No watermark | None (100% watermark-free) |
| Batch & API | Pro plan supports 1,000 batch exports/month and developer API | Multi-image queue, Windows/Mac desktop apps, and REST API |
| Recorded free-tier dimensions | Not verified | 2048 × 2048 |
| Attached file dimensions | Not verified | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 2.64s · End-to-end reference: 5.19s | Network-observed server wait: 18.5s · End-to-end reference: 20s |
| Date & fixture | 2026-10-16 · anchor_upscale_v1 · US-West (California, AS2914) | 2026-10-17 · anchor_upscale_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | No login in this test |
| Sign-in methods | No login required for 2x upscaling and unwatermarked download; optional Google/Apple/Email login | No login required; optional account login for history sync and parallel high-speed queues |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Spotless modern AI Image Editor workspace with zero third-party ads, zero forced login walls for 2x, and a built-in Compare toggle. | Zero registration, zero popups, and zero watermarks: once processing completes, a green "Download (274.41 KB)" button directly exports the full 4x (2048×2048) PNG. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Pixelcut Inc. (San Francisco, USA) | Bigjpg Team |
| Recorded origin | San Francisco, CA, USA | Cross-Platform AI Super-Resolution Team (Launched 2017) |
| Domain history record | 2020–Present | 2017–present (9+ years) |
| Background & reputation assessment | Operated by YC-backed Pixelcut Inc. (San Francisco, USA), trusted by 200,000+ brands. | Operating continuously since 2017 as one of the best-known Waifu2x / SRCNN deep convolutional super-resolution services across Web, Windows, macOS, iOS, Android, and API. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Not verified | Not verified |
| Engineering & privacy assessment | Fast gRPC architecture: 2.55s upload and 2.64s pure server Upscale inference, exporting a 1.87MB lossless PNG. | Supports offline queue recovery and one-click "Delete" to immediately purge uploaded/upscaled files from cloud storage. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 31 / 35 Delivers no-login 512×512 -> 1024×1024 (2x) upscaling and unwatermarked PNG download; the Download menu (03_download.png) clearly states '3 downloads left today', while selecting 4x opens the 'Get Unlimited 4x Upscales' Pro modal ($8/mo yearly). | 33 / 35 Anonymous guests can upload the 512×512 test image and open the clean configuration modal (Artwork/Photo, 2x/4x free, 5 noise reduction levels: None/Low/Medium/High/Highest), with only 8x/16x grayed out and labeled "Upgrade for 8x/16x" (02_workspace.png, 03_download.png). |
| Interaction restraint | 28 / 30 Spotless modern AI Image Editor workspace with zero third-party ads, zero forced login walls for 2x, and a built-in Compare toggle. | 28.5 / 30 Zero registration, zero popups, and zero watermarks: once processing completes, a green "Download (274.41 KB)" button directly exports the full 4x (2048×2048) PNG. |
| Background & reputation | 18 / 20 Operated by YC-backed Pixelcut Inc. (San Francisco, USA), trusted by 200,000+ brands. | 18 / 20 Operating continuously since 2017 as one of the best-known Waifu2x / SRCNN deep convolutional super-resolution services across Web, Windows, macOS, iOS, Android, and API. |
| Engineering & privacy | 15 / 15 Fast gRPC architecture: 2.55s upload and 2.64s pure server Upscale inference, exporting a 1.87MB lossless PNG. | 13 / 15 Supports offline queue recovery and one-click "Delete" to immediately purge uploaded/upscaled files from cloud storage. |
| Task quality | 56 / 65 PSNR vs 2048px GT: 27.08 dB · SSIM: 0.8862 · Edge Gradient Correlation: 0.608 · High-Freq Sharpness Ratio: 0.4716 · Calibration Plate PSNR: 15.54 dB | 56.5 / 65 4x Photo mode (Low noise reduction) exported a native 2048×2048 unwatermarked PNG achieving full-frame PSNR = 28.27 dB and SSIM = 0.9790, suppressing JPEG block artifacts while preserving clean structural geometry and color accuracy (56.5/65). |
| Deliverable specifications | 17 / 20 Clean unwatermarked export (8/8); Free scale factor: 2x (1024×1024 (PNG · 2.0x Fast Upscale)) | 20 / 20 Free guest tier directly exports full 4x (2048×2048) unwatermarked PNG (20.0/20). |
| Processing speed | 15 / 15 Network-observed server wait: 2.64s (API mode: sync_post; end-to-end 5.19s shown for reference only, never penalized) | 10.5 / 15 Free cloud GPU 4x Photo super-resolution completed in ~18.5s (10.5/15). |
