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Semablu
Semablu, a Maltese AI-for-Space startup, applies deep-learning super-resolution to Copernicus Sentinel-2 imagery, lifting it from 10 m to 2.5 m and delivering orthorectified RGB+NIR GeoTIFFs to Earth observation, GIS and environmental monitoring teams.
What is Semablu?
Semablu is an AI-for-Space technology startup based in Malta. It trades as Semablu Ltd, a Maltese private limited liability company registered with the Malta Business Registry under number C105506, and takes its name from the Maltese words sema and blu, meaning blue sky, a nod both to blue-sky research and to an interest in space.
The company sells two things. The first is a self-serve super-resolution platform: deep-learning models applied to Copernicus Sentinel-2 MSI Level-2A optical data to raise spatial resolution from the sensor's native 10 m to 2.5 m. The delivered product is specified as analytics-grade orthorectified surface reflectance, RGB plus NIR, supplied as GeoTIFF, with coverage equivalent to Sentinel-2 availability. The homepage carries an interactive before-and-after slider, so the effect can be judged before any purchase. Delivery runs through a web console at console.semablu.com, and the Terms also reference a Semablu API alongside it.
The second product line is custom AI models built to order for Earth observation monitoring, advertised in three families: land cover mapping for policy development, urban planning and forest or agricultural monitoring; change detection over urban and rural areas from repeat satellite passes; and object detection for buildings, vessels, airplanes and photovoltaic panels.
Behind both sits a real research lineage. Semablu names four funded R&D projects: PI-EOS, SEMS-2D, PosidoniaMapper and MALTESE. PI-EOS is funded by Xjenza Malta on behalf of the Foundation for Science and Technology through the FUSION R&I Research Excellence Programme; MALTESE is financed from PoliRuralPlus under EU Horizon Europe grant agreement No 101136910. An Our Partners band shows the wider Earth observation ecosystem the company works in, with ESA, CNR-IRPI, Geofem and KP Labs, which are partners of the company rather than integrations of the product. Five people are named on the site: Prof Ing Gianluca Valentino (founder and CEO), Glenn Sciortino (GIS developer), Josef Magri (backend developer), Dr Leander Grech (computer vision researcher) and Luke Camilleri (remote sensing analyst).
The Terms are unusually explicit about what the technology is: super-resolution is a generative and inferential process, and every output is a model prediction rather than a direct sensor measurement.
What it does
- Super-resolve Copernicus Sentinel-2 L2A scenes from 10 m to 2.5 m
- Download analytics-grade orthorectified surface reflectance GeoTIFFs with RGB and NIR bands
- Order imagery per scene by area, or draw down prepaid credits
- Keep an area of interest under continuous management for repeat monitoring
- Commission custom land cover mapping models for policy, planning, forestry and agriculture
- Commission automatic change detection between two acquisition dates
- Commission object detection models for buildings, vessels, airplanes and PV panels
When to use Semablu / When not to
A quick filter to help you decide if Semablu is the right fit.
When to use Semablu
- Earth observation and GIS teams that need finer spatial detail than Sentinel-2's native 10 m over small landscape features such as Maltese agricultural fields, pocket beaches or urban plots
- Environmental and conservation scientists mapping coastal Posidonia oceanica seagrass meadows in Natura 2000 sites and marine protected areas
- Agronomists, soil scientists and land managers working on soil erosion detection and severity mapping, or on precision agriculture and forest monitoring
- Urban planners, policy analysts and public administrations that need land cover mapping, change detection between repeat passes, or object detection for buildings, vessels, airplanes and PV panels
- Research groups and publicly funded Earth observation projects that want Sentinel-2-wide coverage without paying for commercial very-high-resolution tasking
When not to use Semablu
- Teams that need sub-metre detail: the product tops out at 2.5 m with RGB and NIR bands only, and is no substitute for commercial very-high-resolution satellite or aerial imagery
- Anyone requiring on-demand tasking or scenes outside the Sentinel-2 archive, since coverage is bounded by Sentinel-2 availability
- Legal, regulatory and safety-critical users: the Terms state that outputs are model predictions which may contain artefacts or hallucinated detail and must not serve as primary evidence without independent verification
- Buyers who want to evaluate on a free tier or a self-serve trial first, since there is no free plan and the smallest credit package costs EUR 1,000
- Organisations with strict data-protection procurement rules: no privacy policy is readable, and no GDPR statement, data processing agreement or subprocessor list is published
How to use Semablu
A typical end-to-end flow, from setup to results.
- Judge the result first: use the before-and-after slider on the homepage, or ask for a free imagery sample through the contact form
- Create an account at console.semablu.com/register with full name, email and password; accepting the Terms is required, and there is no payment step at registration
- Sign in to the console at console.semablu.com, with a password reset available if needed
- Define the area of interest and measure its extent in km2, since every commercial option is priced by area
- Choose a commercial route: pay per scene by area, buy an annual prepaid credit package, or place the area of interest under management
- If paying by bank transfer, wait for Semablu to confirm receipt, because credits activate only then and a pro-forma invoice is not confirmation
- Submit the processing job: jobs that fail through platform errors are not charged, but jobs failing on invalid input parameters or user error may still consume credits
- Download the output as GeoTIFF and load it into a GIS or raster analytics pipeline
- For an API integration, contact the vendor: the Terms reference a Semablu API but no public documentation page was found
- For a custom land cover, change detection or object detection model, use the homepage contact form; a reply is promised within two working days, and the site also publishes +356 99298440 and info@semablu.com
Pros & Cons
Pros
- Quadruples the effective resolution of Sentinel-2, from 10 m to 2.5 m, over an archive that is free and global
- Pricing is published in full on the homepage across three distinct commercial models, which is unusual transparency for the Earth observation sector
- Standards-friendly output: orthorectified surface reflectance, RGB+NIR, GeoTIFF, which drops straight into an existing GIS pipeline
- Unusually candid Terms, which state outright that enhanced imagery may contain artefacts or hallucinated detail absent from the original sensor data
- Credible R&D lineage, with four named publicly funded projects at national level and under Horizon Europe
- A named, identifiable team of five and a clear legal identity: Maltese company, MBR number C105506, Maltese governing law
- Billing rules are spelled out, including which failed jobs are charged and which are not, and a free sample can be requested before committing
Cons
- The privacy policy is linked from the console but every request returns an HTTP 307 redirect to the login page, so a prospect simply cannot read it
- No GDPR statement anywhere on the site from an EU-based vendor, no data processing agreement, no subprocessor list and no disclosed data hosting location
- No robots.txt and no sitemap.xml, and the site answers HTTP 200 with the homepage body for every unknown path, which hides genuine 404s
- Navigation is broken: the Solutions and Projects dropdowns render no links and the four project pages are reachable only by direct URL, while the Company Overview and Careers footer links point to '#', as does the 'I accept the Terms' checkbox on the contact forms
- No free plan and no self-serve trial, and the cheapest credit package is EUR 1,000, a high floor for evaluation
- No public API documentation although the Terms reference an API, no postal address published anywhere, and the legal name reads 'Semablu Ltd' in the footer but 'Semablu Limited' in the About Us text
- Output is generative and bounded: the Terms warn of artefacts and hallucinated detail, there is no on-demand tasking, and the 'Credit Equivalent' column of the pricing table (2.00 to 5.00 km2) is never explained
Pricing & Plans
There is no free plan. Semablu publishes three commercial models on its homepage, all in euros and all exclusive of VAT, the applicable VAT being determined by the billing country and the VAT registration status of the customer. Pay-Per-Scene is billed at EUR 1.00 per km2 for areas of 25 to 100 km2, dropping to EUR 0.80 per km2 above 101 km2; with the 25 km2 floor, this makes roughly EUR 25 the lowest realistic entry point. Annual Credit Packages are published as Number of Credits / Credit Equivalent / Price: 1,000 credits, 2.00 km2, EUR 1,000; 5,000 credits, 3.00 km2, EUR 5,000; 10,000 credits, 4.00 km2, EUR 10,000; 20,000 credits, 5.00 km2, EUR 20,000. The credit price is therefore a flat EUR 1.00 per credit across all four tiers, but that headline rate carries a EUR 1,000 minimum purchase, and the site never explains what the 'Credit Equivalent' column means. Area Under Management starts at EUR 1,000 per year for an area of interest of 25 km2. Credits are valid for one year from payment confirmation; unused credits expire and are non-refundable, non-transferable and not exchangeable for cash, and credits paid by bank transfer activate only once Semablu confirms receipt. A free imagery sample can be requested through the contact form.
- EUR 1.00 per km2 for 25 to 100 km2
- EUR 0.80 per km2 above 101 km2
- on demand
- no commitment
- excluding VAT
- 1
- 000 / 5
- 000 / 10
- 000 / 20
- 000 credits at a flat EUR 1.00 per credit
- that is EUR 1
- 000 / EUR 5
- 000 / EUR 10
- from EUR 1
- 000 per year for an area of interest of 25 km2
- continuous monitoring subscription
- excluding VAT
Data, GDPR & hosting
A consolidated view of how Semablu handles your data.
GDPR overview
There is no GDPR implementation to report, because there is no GDPR documentation at all. The words GDPR and General Data Protection Regulation appear nowhere in the archived corpus of thirteen pages, in text or in HTML. No data protection officer, no data processing agreement, no subprocessor list and no data protection contact address are published. The privacy policy is linked from the console login and registration screens, but every request to it returns an HTTP 307 redirect to the login page, so a prospect cannot read it. This is an absence of documentation, not an absence of obligation: Semablu Ltd is a Maltese company and therefore falls within EU data protection law whatever the site says. The Terms are governed by Maltese law, with exclusive jurisdiction of the Maltese courts. No Article 27 representative is named, and as an EU-established vendor none is required.
Who owns the data?
The Terms draw a clear line. The Semablu platform, its AI models and the associated software remain the intellectual property of Semablu, and a customer may not claim ownership of the models or of the processing pipeline. The source imagery comes from Copernicus Sentinel-2, operated by ESA, so the delivered products stay subject to the Copernicus Sentinel Data Terms and Conditions and the customer is responsible for downstream compliance with that licence. The customer does retain the right to use the processed imagery for their own purposes under the Terms. Nothing at all is stated about ownership of account or personal data, because no privacy policy is reachable.
Reuse rights
Customers may use the processed imagery for their own purposes without asking again, but redistribution is not free: the Terms forbid reselling or redistributing output products without Semablu's written permission, prohibit illegal surveillance or intelligence activities, and prohibit any attempt to reverse-engineer the underlying AI models. Downstream use must also respect the Copernicus Sentinel Data Terms and Conditions attached to the source scenes. In the other direction, almost nothing is documented. The Terms are silent on whether customer inputs or outputs are used to train or improve the models, and the privacy policy that would normally cover personal data returns an HTTP 307 redirect to the login page. The console loads PostHog product analytics, which no published document discloses. Registration offers an optional opt-in to product updates and newsletters, unsubscribable at any time, and material changes to the Terms are communicated by email or through a notice in the console.
Data retention & training
Hosting summary
Data hosting is undisclosed. No hosting country, region or provider is named anywhere on the site or in the Terms. The only mention of infrastructure is generic: paragraph 9 of the Terms refers to third-party infrastructure failures, including cloud compute providers, without naming any provider, country or region, and a targeted search of the whole archived corpus for hosting, data centre, AWS, Azure or Google Cloud returned nothing. The DNS answer does not settle it either. semablu.com resolves to 188.114.97.3, a Cloudflare address (AS13335). That is an anycast IP identifying a CDN edge, the nearest point of presence answering the request, not the place where imagery is processed or account data stored. The document that would normally describe hosting, the privacy policy, is unreachable: it is linked from the console but redirects to the login page. What is known is jurisdictional rather than technical, namely that Semablu Ltd is a Maltese company and the Terms are governed by the laws of Malta. Anyone with a data residency requirement should ask the vendor and get the answer in writing.
Things to keep in mind
Risks and trade-offs to weigh before adopting Semablu.
- The privacy policy is linked from the console login and registration screens, but every request returns an HTTP 307 redirect to /login: you cannot find out how your personal data is handled before creating an account
- No GDPR mention anywhere on the site although the vendor is an EU (Maltese) company, and no data processing agreement, subprocessor list or stated hosting country or region
- The console loads PostHog product analytics, which is disclosed in no published document
- Outputs are generative, and the Terms themselves warn of artefacts and hallucinated detail and forbid use as primary evidence in legal, regulatory or safety-critical contexts without independent verification; treating a super-resolved pixel as if it were a measurement is the main cognitive trap with this class of tool
- Commercial exposure: liability is capped at what the customer paid in the three preceding months, credits expire after one year and are non-refundable, and reselling or redistributing output products requires written permission
- The site returns HTTP 200 with the homepage for any unknown path, so a mistyped or dead URL looks like a working page, and the 'I accept the Terms' checkbox on the site's own contact forms links to '#' rather than to the Terms
- Identity is not fully settled: the legal name reads 'Semablu Ltd' in the footer and 'Semablu Limited' in the About Us body, and no incorporation date could be confirmed, the site stating 2023 while the first web archive capture is April 2024 and the Malta Business Registry entry is paywalled
Setup & Integrations
Technical difficulty
Low to moderate. Signup is self-serve (full name, email, password, accept the Terms), with no installation, no SDK and no payment step; the console route needs only a browser. The real requirements are downstream: output arrives as GeoTIFF, so a GIS or raster analytics environment is needed to exploit it, and the buyer must know their area of interest in km2 to price a job. Credit accounting, and the unexplained 'Credit Equivalent' column, add a step of commercial understanding; bank transfer adds a manual confirmation delay. API integration or a custom model both require contacting the vendor.
Deployment
Behind Semablu
Social
Resources
All the official URLs gathered for verification and reference.
Frequently asked questions
What resolution does Semablu deliver?
What does the output look like?
Where does the source imagery come from?
What area can I cover?
What does it cost?
Is there a free plan or a free trial?
How do credits work, and am I charged for failed jobs?
Is there a privacy policy?
Is there an API?
Can I rely on the imagery for legal or safety-critical decisions?
Should you pick Semablu?
Semablu is a narrow, technically credible product rather than a generic AI wrapper. Its value proposition is essentially arithmetic: four times the effective spatial resolution of a free, global, continuously refreshed archive, at EUR 0.80 to EUR 1.00 per km2. For a team working on small landscape features, whether Mediterranean field parcels, pocket beaches, urban plots, seagrass meadows or erosion scars, that is a real and cheap gain over the native 10 m product, and the four publicly funded R&D projects behind it give the claim a lineage most AI imagery vendors cannot show.
Two things stand out as genuine transparency. Prices are published in full across three commercial models, which is rare in Earth observation. And the Terms say plainly what the technology is: a generative process whose outputs are model predictions, which may contain artefacts or hallucinated detail, and which must not be used as primary evidence in legal, regulatory or safety-critical contexts.
The counterweight is documentation. The privacy policy is linked but unreachable, redirecting to a login page. There is no GDPR statement at all from an EU-established vendor, no data processing agreement, no subprocessor list and no disclosed hosting location. Several navigation and footer links lead nowhere, and the site returns HTTP 200 with the homepage for any unknown path, so nothing looks broken even when it is. None of that makes the imagery worse, but it does make the vendor harder to clear through a procurement or data protection review.
Financially, the evaluation floor depends on the route: EUR 1,000 for the smallest credit package, but roughly EUR 25 through pay-per-scene at the 25 km2 minimum, and a free sample can be requested first. The team is five named people, and buyers should size their dependency accordingly.
- Choosing a selection results in a full page refresh.
- Opens in a new window.