Airis by SigmaOS vs Bigjpg
Side-by-side comparison · Updated September 2026
| Description | Airis, the native AI companion developed by SigmaOS, is designed to cater to an extensive range of users including students, researchers, founders, educators, and creators. Its role is to enhance productivity and creativity across various fields, making it an indispensable tool for anyone involved in study, innovation, or creative pursuits. The versatility of Airis assures its applicability across a multitude of scenarios, promising an enriched work and study environment. | Bigjpg enlarges existing artwork, illustrations and photographs with AI reconstruction. It can smooth noise and redraw edges, but cannot guarantee that reconstructed details match the original scene. Check faces, linework, lettering and product details at the final viewing size. It is an image upscaler, not a text-to-image generator. Free allows 20 pictures per month, up to 4x enlargement and a 5MB upload. Basic costs $6 for two months with 500 pictures per month; Standard costs $12 for six months with 1,000 per month; Premium costs $22 for twelve months with 2,000 per month. All three paid packages allow up to 16x enlargement and 50MB files, with priority processing, parallel jobs and batch mode. Package duration and monthly image allowance are separate. Offline processing is available with an account, including Free. If you submit without logging in, keep the browser open while processing. The official API is available to paid members after login; check its account-specific limits before building an automated workflow. Compare VanceAI for an online credit-based workflow or a separate Windows application. The June 23, 2026 terms name Guangzhou Datu Technology Co., Ltd. as the operator and leave ownership of uploaded images with the user. You must have the rights needed to process them. The privacy policy says uploads are not used to train models and are removed from active systems within 24 hours after processing on Free, or 72 hours on Premium. It also describes cloud storage and content moderation, so this is a cloud service rather than local-only processing. Save results before the retention window ends. |
| Category | AI Assistant | Image Improvement |
| Rating | No reviews | No reviews |
| Pricing | Free | Freemium |
| Starting Price | N/A | Free |
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| Tags | AI companionproductivitycreativitystudentsresearchers | image upscalinganime upscalingphoto enlargementillustrationbatch processing |
| Features | ||
| Tailored for a diverse audience including students, researchers, founders, educators, and creators | ||
| Ideal for study, innovation, and creative endeavors | ||
| Enhances productivity and creativity across various fields | ||
| Integrated with SigmaOS for a seamless experience | ||
| Supports research, study management, and creative project organization | ||
| Provides innovative solutions and idea generation | ||
| Active YouTube presence for instructional videos | ||
| Comprehensive support including FAQs and email assistance | ||
| Versatile for a wide range of activities | ||
| Streamlines data collection, analysis, and content organization | ||
| AI reconstruction for photos and illustrations | ||
| Free 4x enlargement and 20 pictures/month | ||
| Paid 16x enlargement and 50MB uploads | ||
| Paid parallel processing and batch mode | ||
| Account-based offline processing, including Free | ||
| Paid-member API access | ||
| Published image-retention and model-training policies | ||
| View Airis by SigmaOS | View Bigjpg | |
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