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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 | Nero AI | ShortPixel | Switch / compare |
|---|---|---|---|
| Background removal | 80/100 2000 × 2000 · PNG | Not tested in topic | Compare in task topic → |
| Image compression | 88/100 2048 × 2048 · PNG | 86/100 2048 × 2048 · PNG | Active task |
| Image upscaling | 84/100 2048 × 2048 · PNG | Not tested in topic | Compare in task topic → |
| Object removal | 77/100 2000 × 2000 · PNG | Not tested in topic | Compare in task topic → |
| Image generation | 91/100 1024 × 1024 · PNG | Not tested in topic | Compare in task topic → |
| Photo restoration | 79/100 JPEG · Output attached | Not tested in topic | Compare in task topic → |
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Browse this task →| Criterion | Nero AI Image Compressor Image compression 88/100 Seven-aspect task score Exports a full 2048×2048 watermark-free PNG for 1 free credit with three compression modes and high fidelity (38.19 dB PSNR), cutting file size by roughly half. Tested export 2048 × 2048 · PNG Historical test · 2026-10-23 | ShortPixel Online Image Compressor Image compression 86/100 Seven-aspect task score Login-free access offers three compression modes without third-party ads and discloses batch and size limits; this run cut size about 68% using cloud processing. Tested export 2048 × 2048 · PNG Historical test · 2026-10-18 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | Nero AI web plans (Free / Standard / Yearly promo / Business); USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-21 ↗ Free Free Free 5 free guest runs without login; 10 one-time credits per registered account (max 1000×1000px upload, 5 images/batch; 2× costs 1 credit, 4× costs 2 credits). Standard Monthly (300 credits)2026-10-21 ↗ USD 21.95/month — Monthly 300 credits/month (promotional USD 21.95/month, regular USD 24.99/month); up to 4000×4000px upload, 30 images/batch, priority processing, and 8× upscaling. Standard Yearly (3,000 credits/yr)2026-10-21 ↗ — Annual price not verified Annual 3,000 credits/year; promotional banner displays USD 7.66/month equivalent. Public page displays only the 7.66 USD/month equivalent without showing the annual invoice total before login. Business2026-10-21 ↗ Contact sales Quoted Quoted Custom credits and pricing (up to 200 images/batch, highest priority, API processing, and dedicated server). 4 plan / billing-period records, all listed; — means that period is not recorded. The official pricing page and credit table state that guests get 5 free runs and registered Free accounts receive 10 one-time Nero Credits (Standard/Photo/Anime 2× costs 1 credit/image, 4× costs 2 credits/image, paid-only 8× costs 4 credits/image). Standard monthly is USD 21.95/month promotional (regular USD 24.99/month, 300 credits/month). The yearly promo banner displays only "7.66 USD per month" (3,000 credits/year) without printing the annual invoice total before login, so the annual total is marked unverified. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancel anytime by turning off auto-renewal in account settings (remaining credits expire at the end of the billing period); FAQ states refunds are not allowed once Nero Credits have been used. Nero AI official pricing, credit consumption table, and FAQ ↗ · 2026-10-21 Capture 1 ↗ | ShortPixel free web tool, one-time non-expiring credit packs, and annual unlimited plans; USD · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Web / Free Plan2026-10-21 ↗ Free Free Free Web tool free without login up to 50 images/batch and ≤10 MB/file (login removes 10 MB limit); Free account includes 100 credits/month. One-time 30K2026-10-21 ↗ USD 19.99 · one-time payment Usage / one-time Usage / one-time 30,000 credits (never expire) + 100 AI credits/month + 150 GB CDN traffic across unlimited websites. Rules [1] One-time 50K2026-10-21 ↗ USD 29.99 · one-time payment Usage / one-time Usage / one-time 50,000 credits (never expire) + 100 AI credits/month + 250 GB CDN traffic across unlimited websites. Rules [1] One-time 100K2026-10-21 ↗ USD 49.99 · one-time payment Usage / one-time Usage / one-time 100,000 credits (never expire) + 100 AI credits/month + 500 GB CDN traffic across unlimited websites. Rules [1] One-time 250K2026-10-21 ↗ USD 99 · one-time payment Usage / one-time Usage / one-time 250,000 credits (never expire) + 100 AI credits/month + 1.25 TB CDN traffic across unlimited websites. Rules [1] Unlimited Yearly2026-10-21 ↗ — Annual price not verified Annual Unlimited monthly credits, unlimited websites, 100 AI credits/month, 500 GB CDN/month; card displays USD 8.33/month equivalent (2 Months Free). Card displays only the USD 8.33/month equivalent ("Saving $31.98 / year") without printing the annual invoice total. Unlimited AI Yearly2026-10-21 ↗ — Annual price not verified Annual Unlimited compression and AI credits (including AI background removal and upscaling), 500 GB CDN/month; card displays USD 13.33/month equivalent. Card displays only the USD 13.33/month equivalent ("Saving $31.98 / year") without printing the annual invoice total. 7 plan / billing-period records, all listed; — means that period is not recorded. The online web compressor is free without login for files ≤10 MB (login removes the 10 MB limit; free plan includes 100 credits/month). The pricing page lists four non-expiring one-time credit packs (30K at USD 19.99, 50K at USD 29.99, 100K at USD 49.99, and 250K at USD 99.00). The Unlimited Yearly cards display only monthly equivalents (USD 8.33/month and USD 13.33/month, "Saving $31.98 / year") without printing the annual invoice total on the card, so the annual totals are kept unverified. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordOne-time credit packs never expire; subscriptions can be cancelled anytime in the account dashboard under official Terms. ShortPixel official pricing page (annual plans and one-time credit packs) ↗ · 2026-10-21 Capture 1 ↗ · Capture 2 ↗ |
| Free & trial allowance on the test date | Consumes 1 Nero Credit per image compression task (free accounts receive initial and daily check-in credits) | Up to 50 files per batch and 10 MB per file without login; free access to Lossy, Glossy, and Lossless modes |
| Cancellation & refunds | Cancel anytime by turning off auto-renewal in account settings (remaining credits expire at the end of the billing period); FAQ states refunds are not allowed once Nero Credits have been used. | One-time credit packs never expire; subscriptions can be cancelled anytime in the account dashboard under official Terms. |
| Disclosure of costs & limits | Discloses "1 Nero Credit will be used" on the Start button before processing | Discloses 'maximum 10Mb. Login to remove the restriction.' upfront below the dropzone |
| Task quality | ||
| Measured fixture results | File reduction: 49.74% · Output size: 2079.8 KB | File reduction: 67.54% · Output size: 1343 KB |
| Fixture findings | Reduces the standard PNG by 49.74% in native PNG format at 38.19 dB PSNR and 0.9979 SSIM with virtually lossless detail. | Offers three modes without login; the default reduced this fixture by about 68%, with quality trade-offs to inspect. |
| Original historical observation | Nero AI Image Compressor shrinks the 4,237,170-byte (2048×2048) anchor PNG to 2,129,766 bytes (-49.74%) in High mode while maintaining native PNG format and 38.19 dB PSNR / 0.9979 SSIM. | ShortPixel's online compressor is completely ad-free, discloses its 10 MB guest limit upfront (01_landing.png), and freely unlocks Lossy, Glossy, and Lossless modes. In default Lossy mode, it shrinks our 4,137.9 KB PNG to 1,343.0 KB (-67.54%, 3.08× ratio, 02_workspace.png) at 34.72 dB PSNR and 0.9954 SSIM. |
| Suitable uses · historical assessment | Users already in the Nero AI ecosystem who want high-PSNR (38.19 dB) PNG compression up to 50 MB / 16 MP with adjustable High/Low/Custom levels | Webmasters and designers who want an ad-free workspace with free access to Lossy, Glossy (photographer-grade), and Lossless modes |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 2048 × 2048 · PNG · No watermark in test |
| Historical specification note · not an official maximum | 2048×2048 (native PNG format preserved, watermark-free export) | 2048×2048 full-resolution PNG free direct export (up to 10 MB and 50 files without login) |
| Watermark observation | Watermark-free | Watermark-free |
| Batch & API | Supports multi-file batch upload and REST API | Supports up to 50 files per batch on web, plus WordPress plugins and REST API |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 6.56s · End-to-end reference: 15.36s | Network-observed server wait: 9.8s · End-to-end reference: 12.2s |
| Date & fixture | 2026-10-23 · anchor_compress_v1 · US-West (California, AS2914) | 2026-10-18 · anchor_compress_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 | Supports guest trial quota and Google / Email account login with daily free Nero Credits | No login required (free account login removes the 10 MB per-file cap) |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Provides a clean before/after zoom workspace showing "4.0MB → 2.0MB (-50.0%)" and exports the native 2048×2048 watermark-free PNG directly upon clicking Download (03_download.png). | Clean workspace with zero third-party ad banners, offering Lossy / Glossy / Lossless mode toggles and direct one-click PNG download from the thumbnail card (02_workspace.png, 03_download.png). |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Nero AG | ShortPixel (ID Scout SRL) |
| Recorded origin | Karlsruhe, Germany | Bucharest, Romania (EU GDPR compliant) |
| Domain history record | Founded 1995 (Nero Burning ROM / Nero AI Suite) | 2014–Present (12-year image optimization specialist) |
| Background & reputation assessment | Developed by Nero AG (Karlsruhe, Germany; founded in 1995), a long-established multimedia software company operating the Nero AI web and mobile suite. | Operated by ShortPixel (ID Scout SRL, founded in 2014), one of the most widely installed image optimization providers in the WordPress ecosystem. |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | No third-party services listed in this record; this is not proof that none exist. | Not verified |
| Engineering & privacy assessment | HTTPS upload to ai.nero.com/api/v2/file/upload followed by asynchronous task polling (/api/v2/task/status, 6.56s server wait) and native PNG Blob export. | Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 29 / 35 Landing page clearly states "Free: up to 16 MP & 50 MB per image" (01_landing.png); after uploading the 4.04 MB (2048×2048) anchor PNG, the workspace explicitly discloses "1 Nero Credit will be used" before clicking Start and offers High / Low / Custom compression levels (02_result.png). | 32 / 35 Clearly states right below the dropzone: 'Drop up to 50 files here to optimize. Compress JPG, GIF and PNG online. The files should have maximum 10Mb. Login to remove the restriction.' (01_landing.png). |
| Interaction restraint | 26 / 30 Provides a clean before/after zoom workspace showing "4.0MB → 2.0MB (-50.0%)" and exports the native 2048×2048 watermark-free PNG directly upon clicking Download (03_download.png). | 26 / 30 Clean workspace with zero third-party ad banners, offering Lossy / Glossy / Lossless mode toggles and direct one-click PNG download from the thumbnail card (02_workspace.png, 03_download.png). |
| Background & reputation | 19 / 20 Developed by Nero AG (Karlsruhe, Germany; founded in 1995), a long-established multimedia software company operating the Nero AI web and mobile suite. | 18 / 20 Operated by ShortPixel (ID Scout SRL, founded in 2014), one of the most widely installed image optimization providers in the WordPress ecosystem. |
| Engineering & privacy | 13 / 15 HTTPS upload to ai.nero.com/api/v2/file/upload followed by asynchronous task polling (/api/v2/task/status, 6.56s server wait) and native PNG Blob export. | 14 / 15 Processes images via ShortPixel's GDPR-compliant European cloud cluster without requiring personal details for guests. |
| Task quality | 59 / 65 Compresses the 4,237,170-byte (4,137.9 KB) 2048×2048 PNG down to 2,129,766 bytes (2,079.8 KB, -49.74%, 1.99× ratio) in High mode while preserving native PNG format, achieving PSNR = 38.19 dB and SSIM = 0.9979 (59.0/65) | 54.3 / 65 Reduces file size by 67.54% (3.08×) with 34.72 dB PSNR and 0.9954 SSIM, balancing strong compression with clean visual fidelity (54.3/65) |
| Deliverable specifications | 18 / 20 Preserves full 2048×2048 resolution and native PNG container without watermarks, requiring 1 free Nero Credit per task (18.0/20) | 19 / 20 Preserves full 2048×2048 resolution and native PNG format while offering free Lossy/Glossy/Lossless mode switching (19.0/20) |
| Processing speed | 12 / 15 Single-sample network timing: 5.44s upload + 6.56s server async task processing (15.36s end-to-end) (12.0/15) | 11 / 15 Cloud SmartCompress processing takes ~9.8s (~12.2s end-to-end) (11.0/15) |
