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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 | seaart.ai | Hama | Switch / compare |
|---|---|---|---|
| Background removal | 84/100 2048 × 2048 · PNG | Not tested in topic | Compare in task topic → |
| Image upscaling | 79/100 1024 × 1024 · PNG | Not tested in topic | Compare in task topic → |
| Object removal | 86/100 2048 × 2048 · PNG | 74/100 720×720 (SD Unwatermarked JPEG) · Historical description; output not attached | Active task |
| Image generation | 83/100 WEBP · Output attached | Not tested in topic | Compare in task topic → |
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Browse this task →| Criterion | SeaArt (AI Object Remover) Object removal 86/100 Seven-aspect task score SeaArt AI Eraser offers manual smear and rectangular selection tools. In the 2048x2048 object removal benchmark, it achieved outstanding unmasked fidelity (unmasked PSNR 39.86 dB), completely erasing all 3 high-contrast plaques while synthesizing coherent wood and bookshelf textures, exporting pristine 2048px watermark-free deliverables for 20 free credits. Tested export 2048 × 2048 · PNG Historical test · 2026-11-04 | Hama (AI Object & People Eraser) Object removal 74/100 Seven-aspect task score Login-free removal and download give natural blending; free output drops to 720px, while fullscreen and floating ads interfere with the canvas. Tested export 720×720 (SD Unwatermarked JPEG) · Historical description; output not attached Historical test · 2026-10-16 |
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| Pricing & rules | ||
| Pricing plans | SeaArt.ai Stamina and VIP subscription model · 2026-11-01 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Tier (Daily Stamina)2026-11-01 ↗ Free Free Free ~150 daily Stamina refreshed every 24 hours Base image generation, upscaling, background removal, and community models；Unused stamina resets daily; standard queue; excludes custom LoRA training；Refreshes daily, no renewal；Perpetual access Standard VIP2026-11-01 ↗ Monthly price not verified — Monthly Higher daily Stamina allowance, bonus coins, and fast-track queues Fast-track generation, concurrent tasks, and commercial licensing；Pricing visible inside account store (typically approx $9.99/mo)；Auto-renews monthly；Active during billing month 2 plan / billing-period records, all listed; — means that period is not recorded. Uses daily regenerating Stamina (~150/day free) plus persistent Coins; paid plans include Standard VIP (~$9.99/mo), Pro (~$29.99/mo), and SVIP tiers detailed within account portals. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancellation and refund terms unverified SeaArt AI Official Homepage and Community ↗ · 2026-11-01 Capture 1 ↗ | Hama web AI object remover (excludes custom API) · 2026-10-21 Plan · source date Monthly / one-time Annual bill / period Quota & limits Guest Free (720p)2026-10-21 ↗ Free Free Free Unlimited object removal without login; export resolution capped at 720px (unwatermarked). Hama PRO (Free HD with login)2026-10-21 ↗ Free Free Free Official FAQ states that logging in for free unlocks high-resolution image downloads in Hama PRO. 2 plan / billing-period records, all listed; — means that period is not recorded. The official FAQ ("How much does it cost?") explicitly states that Hama is free, and users only need to log in to download high-resolution images in Hama PRO. Guests can export unlimited 720px unwatermarked images without login, and logging in unlocks Hama PRO (HD) for free. Cancellation, sources & verification recordWeb access (including login-unlocked HD) is free with no subscription charges. Hama official page and FAQ (pricing statement) ↗ · 2026-10-21 Capture 1 ↗ |
| Free & trial allowance on the test date | Daily login grants ~150 Stamina; inpainting consumes 20 points per run | Unlimited free guest usage at 720px standard resolution without watermarks |
| Cancellation & refunds | Not verified | Web access (including login-unlocked HD) is free with no subscription charges. |
| Disclosure of costs & limits | Credit consumption disclosed upfront before processing | Top banner promotes 'Try hama PRO (HD)', though the exact 720px cap is only evident upon inspecting the downloaded file |
| Task quality | ||
| Measured fixture results | Not verified | Not verified |
| Fixture findings | 100% erasure of all 3 high-contrast plaques with 39.86 dB unmasked fidelity, seamless background texture inpainting, and native 2048x2048 watermark-free export. | Supports marking multiple areas; reconstruction looked natural, but free output was 720px and the page had ads. |
| Original historical observation | Inpainting PSNR=13.58 dB, unmasked area fidelity PSNR=39.86 dB, SSIM=0.9552, with complete erasure of 3 plaques and realistic texture synthesis. | Hama.app lets users brush all 3 signs at once and submit a single /api/hama-inpainting job (8.78s), blending bookshelf and wood-grain backgrounds naturally; its main limitations are the 720×720 free resolution cap and third-party Google AdSense overlays. |
| Suitable uses · historical assessment | Designers and creators requiring full 2048px high-resolution inpainting without watermarks | Quick social media or small web graphics where 720px unwatermarked output without login is sufficient |
| Result & output evidence | No native output obtained; the preview does not establish final export quality. | |
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 720×720 (SD Unwatermarked JPEG) · Historical description; output not attached · Check watermark record No native output is attached; check the evidence for specification and watermark claims. |
| Historical specification note · not an official maximum | 2048×2048 (PNG · 100% Native Full-Resolution) | 720×720 (SD Unwatermarked JPEG) |
| Watermark observation | Completely watermark-free | None (100% watermark-free) |
| Batch & API | Web interactive canvas workspace | Offers Hama API and keyboard shortcuts (⌘+B Brush, ⌘+Enter Erase, ⌘+Z Undo) |
| Recorded free-tier dimensions | 2048 × 2048 | Not verified |
| Attached file dimensions | 2048 × 2048 · PNG | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 18s · End-to-end reference: 18s | Network-observed server wait: 8.78s · End-to-end reference: 9.38s |
| Date & fixture | 2026-11-04 · anchor_inpaint_v1 · US-West (California, AS2914) | 2026-10-16 · anchor_inpaint_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 | Account required in this test | No login in this test |
| Sign-in methods | Google / Email Login | No login required for 720px tier; email login available for PRO |
| Manual adjustment | Not verified | Manual erase / adjustment recorded in the historical flow |
| Interaction observations | Clean canvas workspace with brush and marquee tools, zero intrusive upsells or paywall popups. | Completes the full workflow without registration, but embeds Google AdSense floating overlays and shopping anchor banners (see bottom-right of 02_workspace.png) that can intercept upload clicks. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | STAR CLOUD PTE. LTD. (SeaArt) | Hama.app |
| Recorded origin | Singapore | Independent AI Vision Tool Team |
| Domain history record | 2023–Present | 2021–Present (Early web-based LaMa inpainting application) |
| Background & reputation assessment | Operated by STAR CLOUD PTE. LTD. (Singapore) with established reputation and active creative user base. | Established web-based AI object eraser (Hama.app) launched in 2021, widely used for quick watermark and object removal. |
| External reputation record | Active global AIGC community with millions of creator-published styles and LoRA assets across mobile and web. | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Google Tag Manager · Cloudflare · Stripe | Not verified |
| Engineering & privacy assessment | Encrypted HTTPS transport, gallery management with one-click asset deletion. | Resizes the canvas to 720×720 on the client before submitting to /api/hama-inpainting (8.78s cloud inference), reducing upload size at the cost of 2K high-frequency detail. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 25 / 35 Manual inpainting clearly displays 20 Stamina points cost; transparent pricing and resource consumption. | 24 / 35 Allows guests to upload, brush, and click Finish -> Download for an unwatermarked image without login (01_landing.png, 03_download.png), but downscales the 2048×2048 original to a 720×720 JPEG on the free tier (HD requires Hama PRO). |
| Interaction restraint | 27 / 30 Clean canvas workspace with brush and marquee tools, zero intrusive upsells or paywall popups. | 21 / 30 Completes the full workflow without registration, but embeds Google AdSense floating overlays and shopping anchor banners (see bottom-right of 02_workspace.png) that can intercept upload clicks. |
| Background & reputation | 16 / 20 Operated by STAR CLOUD PTE. LTD. (Singapore) with established reputation and active creative user base. | 16 / 20 Established web-based AI object eraser (Hama.app) launched in 2021, widely used for quick watermark and object removal. |
| Engineering & privacy | 13.5 / 15 Encrypted HTTPS transport, gallery management with one-click asset deletion. | 12 / 15 Resizes the canvas to 720×720 on the client before submitting to /api/hama-inpainting (8.78s cloud inference), reducing upload size at the cost of 2K high-frequency detail. |
| Task quality | 58 / 65 Inpainted Region PSNR vs 2048px GT: 13.58 dB · Inpainted SSIM: 0.9552 · Unmasked Background Preservation PSNR: 39.86 dB | 51.5 / 65 Masked GT Reconstruction (22.5/30: structural PSNR=15.12dB · SSIM=0.4002) · Unmasked Fidelity (16.5/20: unmasked_psnr=25.16dB, limited by 720px downscaling) · Texture Continuity (12.5/15: coherent bookshelf and wood-grain blending) |
| Deliverable specifications | 20 / 20 Watermarked or blocked free export (0/8); Export spec: 2048×2048 (PNG · 100% Native Full-Resolution) | 11 / 20 Exports a free 720×720 unwatermarked JPEG without login, reducing linear resolution by 64.8% from 2048×2048 (11/20) |
| Processing speed | 10.5 / 15 Network-observed server wait: 18s (API mode: async_verified; end-to-end 18s shown for reference only, never penalized) | 12 / 15 CDP measured 8.78s pure cloud inference across /api/hama-inpainting for all 3 zones simultaneously |
