Jezweb / AI Research
March 2026

Gemini Image Generation

Can AI generate geographically accurate, client-ready hero images for Australian businesses? We ran 13 experiments across 100+ images to find out.

100+
Images Generated
13
Experiments
$0.05
Per Image
~25s
Generation Time

Client-Ready Hero Images

Real Jezweb business types. Each image uses search context references (location + industry) and a detailed narrative prompt. Ship-ready hero images.

AI-generated electrician hero image

Electrician — Newcastle

2 refs · temp 0.7
Hi-Vis polo, tool belt, brick house with terracotta roof, white work van, native grevilleas. Sun from the north.
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AI-generated cafe hero image

Cafe — Armidale

2 refs · temp 0.7
Heritage building interior, exposed brick, Edison bulbs, La Marzocco, customers in winter scarves. Cold overcast light through window with bare deciduous trees.
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AI-generated adventure tourism hero image

Adventure Tourism — Port Stephens

2 refs · temp 0.7
Four young adults on Stockton sand dunes, golden afternoon light, Pacific Ocean stretching to horizon. Wide landscape with text overlay space.
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AI-generated accountant hero image

Accountant — Maitland

2 refs · temp 0.7
Heritage building with arched window and wrought iron, exposed brick, modern desk. Heritage shopfronts of High Street visible through window.
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Phase 2: Every Business Type

11 business types across 5 categories, all generated with search references + narrative prompts. The pipeline works for virtually any industry.

AI-generated restaurant hero image

Restaurant — Newcastle Harbour

2 refs · food & hospitality
Harbour view through floor-to-ceiling windows, plated fish, wine glasses, exposed brick walls. Warm evening dining atmosphere.
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AI-generated cafe exterior hero image

Cafe Exterior — Berry

2 refs · food & hospitality
Heritage country-town shopfront, striped awning, outdoor tables, potted herbs, bicycle, patrons enjoying coffee in the sunshine.
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AI-generated hair salon hero image

Hair Salon — Melbourne

2 refs · health & beauty
Industrial-chic interior with exposed brick, tattooed stylist, round gold mirrors, professional product shelves.
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AI-generated gym hero image

Gym & Fitness Trainer

2 refs · health & beauty
CrossFit-style warehouse gym, PT working with client, kettlebells and equipment racks, exposed brick and steel.
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AI-generated landscaper hero image

Landscaper — Native Garden

2 refs · outdoor trades
Landscaper in Akubra planting native kangaroo paws, modern Australian home, flagstone path, golden hour light filtering through eucalyptus.
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AI-generated plumber hero image

Plumber — Bathroom Reno

2 refs · trades
Professional plumber working under a modern vanity, tool bag on floor, stone-tile bathroom, glass shower screen. Clean, competent image.
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AI-generated mechanic hero image

Mechanic — Workshop

2 refs · trades
Professional mechanic with tablet, car on hoist, blue tool chest, clean organised workshop. Slightly generic but usable.
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AI-generated solar installer hero image

Solar Installer — Roof Install

2 refs · tech & trades
Two installers in hi-vis on terracotta tile roof, Australian brick suburb, Hills Hoists in yards, neighbouring solar panels already installed.
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AI-generated wedding venue hero image

Wedding Venue — Hunter Valley

2 refs · events
Outdoor ceremony with Brokenback Range backdrop, vineyard rows, timber arch with roses, white cross-back chairs, scattered petals. Golden hour.
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AI-generated real estate hero image

Real Estate Agent

2 refs · events & property
Female agent with portfolio outside a weatherboard cottage, white picket fence, hydrangeas, bullnose verandah. Classic Australian listing photo.
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AI-generated tech company hero image

Tech Company — Office

2 refs · technology
Modern open-plan office, standing desks, whiteboard with sticky notes, plants as dividers, team collaborating. Clean and professional.
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AI-generated veterinary clinic hero image

Vet Clinic — Consultation

4 refs · health
Warm modern consultation room, teal-green accent wall, timber cabinetry. Vet examining a relaxed golden retriever while the owner watches with a smile. Indoor plants, natural window light.
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Panorama Reference Breakthrough

Using the streetview Python library to download actual 360-degree panoramas (16,384 x 8,192 pixels) from Google Maps user photos. Cropped to the relevant viewing direction, these provide the best reference quality we've seen.

Tomaree Head from panorama references

Tomaree Head — Panorama Refs

3 pano crops · 360° source
The definitive Tomaree result. Metal summit walkway stairs, Zenith Beach on the left, Shoal Bay with boats on the right, green headland between. Fixed the sand dune problem completely.
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Tomaree Head from curated refs with QA

Tomaree — AI-Curated + QA Loop

curated refs · 2 QA passes
Gemini curated 8 search candidates down to 3 best refs, generated, then QA vision check flagged issues. V2 after QA feedback is dramatically better than V1.
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Armidale Beardy Street from panorama references

Armidale Beardy St — Panorama Refs

3 pano crops · 360° source
Red brick pedestrian mall, octagonal brick fountain, bare winter deciduous trees, overcast sky, people in warm jackets. Heritage lamp posts and timber benches.
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Maitland High Street from panorama references

Maitland High St — Panorama Refs

3 pano crops · 360° source
Victorian-era parapets, iron-lace verandahs, curved road, heritage shopfronts, parked cars. The panorama refs captured the exact streetscape character.
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Tamworth Peel Street from panorama references

Tamworth Peel St — Panorama Refs

2 pano crops + 2 search refs
Australia's country music capital. Wide main street with heritage shopfronts, golden guitar sculpture, palm trees, clock tower in the distance. Blue sky, dry country light.
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Cessnock Vincent Street from panorama references

Cessnock Vincent St — Panorama Refs

2 pano crops + 2 search refs
Heritage main street with art deco facades. The model interpreted the historical references too literally — vintage cars and dusty road instead of modern Cessnock. Instructive failure mode.
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Multi-Source Reference Selection

Instead of relying solely on Google Images, we pull references from 4 sources in parallel: Google Images (with improved negative keyword queries), Google Maps Places API (real user photos), Wikimedia Commons, and Streetview panoramas. AI curation then picks the best 3-4 refs based on location accuracy, normal state (no events/decorations), composition value, and technical quality.

Tomaree Head from multi-source references

Tomaree Head — Multi-Source

9 candidates · 4 sources · 4 selected
Best Tomaree result yet. Metal summit stairs, Zenith Beach left, Shoal Bay with boats right, golden hour. Curation correctly rejected streetview forest panoramas and annotated tourist images.
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Armidale Beardy Street from multi-source references

Armidale Beardy St — Multi-Source

9 candidates · 4 sources · 3 selected
Heritage red brick mall, fountain, winter trees. Curation correctly rejected Booloominbah mansion (wrong location entirely), night shots, and back-of-building views. Google Maps Places API contributed a key reference.
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Maitland High Street from multi-source references

Maitland High St — Multi-Source

4 candidates · 2 sources · 3 selected
Victorian parapets, iron-lace verandahs, golden hour. Google Images returned zero results for Maitland — multi-source approach meant Wikimedia + Streetview still produced a quality hero. Resilience through diversity.
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Newcastle Beach from multi-source references

Newcastle Beach — Multi-Source

8 candidates · 4 sources · 3 selected
Iconic Newcastle beachfront from elevated perspective. Ocean baths and Bogey Hole in the foreground, golden sand, surfers, Norfolk pines along the promenade. Cathedral and city skyline on the hill behind.
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Hunter Valley vineyards from multi-source references

Hunter Valley — Multi-Source

9 candidates · 4 sources · 3 selected
Neat vine rows stretching to the Brokenback Range. Rustic timber cellar door, golden hour light, hot air balloon floating in the distance. Quintessential Hunter Valley wine country.
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Port Macquarie lighthouse from multi-source references

Port Macquarie — Multi-Source

8 candidates · 4 sources · 3 selected
Tacking Point Lighthouse on a rocky headland with crashing Pacific waves. Green coastal scrub, dramatic sky catching golden hour light. Coastline stretching into the distance.
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Hero Image Variants

Same location, different compositions. The model generates distinct hero styles from the same reference photos. All 16:9 with text overlay zones.

Newcastle Beach hero with text zone

Newcastle Beach — Text-Left Hero

5 refs · 16:9
Pool, beach, and city on the right 60%. Left 40% has clean golden sky for headline text overlay. Production hero layout.
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Newcastle Ocean Baths at dawn

Newcastle Baths — Atmospheric

5 refs · 16:9
Pre-sunrise blue hour. Pool water glowing turquoise against dark rocks. City lights twinkling on the hill behind. Cinematic mood.
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Hunter Valley cellar door

Hunter Valley — Cellar Door

4 refs · 16:9
Interior generated from exterior vineyard photos. Timber bar, stone walls, vineyard visible through windows. The model inferred the interior style from the region.
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Hunter Valley aerial

Hunter Valley — Aerial

4 refs · 16:9
Geometric vine rows on rolling green hills, Brokenback Range mountains, morning mist in valleys. Drone perspective at 100m.
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Stockton sand dunes

Port Stephens — Sand Dunes

5 refs · 16:9
Massive golden Stockton dunes, Pacific Ocean beyond, two figures for scale. Late afternoon light creating long shadows. Text-left hero layout.
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Tomaree Head summit view

Port Stephens — Tomaree Summit

5 refs · 16:9
180-degree view from Tomaree Head. Shoal Bay, Zenith Beach below, harbour entrance, dunes in the distance. Epic golden hour landscape.
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Port Stephens bay aerial

Port Stephens — Bay Aerial

4 refs · 16:9
Crystal clear turquoise water, boats at anchor in a sheltered bay, white sand beach, lush green headlands. Golden hour light. Tourism hero material.
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Leura village in autumn

Leura — Autumn Village

4 refs · 16:9
Blue Mountains heritage village ablaze with autumn colour. Golden yellows, warm oranges, deep reds. Boutique shopfronts, people in warm scarves. Crisp mountain light.
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Accuracy Highlights

The model produces surprisingly accurate Australian scenes, even when given bad references or no references at all.

Newcastle Ocean Baths repeatability test

Repeatability Test — Same Prompt x3

Consistent · temp 0.8
Same references + same prompt, run 3 times. All 3 show the same location elements. Viewpoint varies ~20-30 degrees, giving meaningful variety while maintaining geographic accuracy.
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Armidale Beardy Street

Armidale — Resilience to Bad Refs

Street View refs
Street View coordinates landed on a roundabout with a BP station. The model completely ignored those references and generated accurate heritage mall with brick fountain, bare winter trees, and overcast sky.
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Key Findings

What we learned across 9 experiments and 90 images.

Capability Status Best Approach
Stock photo replacement Ready Detailed prompt + camera specs + AU context
Reference-inspired generation Ready Feed stock photo as reference + detailed prompt
Famous landmarks Ready Plain prompt (training data sufficient)
Regional landmarks Ready Search-based reference pipeline (3-5 photos)
Client hero images Ready Two-query search (location + industry) + narrative
Hero composition (text overlay) Ready "Subject on right 60%, left 40% clear sky for text"
16:9 hero images Ready imageConfig: { aspectRatio: "16:9" }
Generate-until-happy workflow Ready Temperature 0.8, run 3x, pick best (~$0.15)
AI reference curation Ready Gemini Flash ranks 8 candidates, picks best 3-4 for generation
QA verification loop Ready Vision model catches errors; 2 passes dramatically improves accuracy
Panorama references Ready 360-degree user panoramas provide best reference quality
Trades & services Ready Solar, plumbing, landscaping, hair, fitness all client-ready
Multi-source references Ready 4 sources + AI curation rejects wrong locations, events, night shots; resilient when one source fails
Street-level accuracy Limited Coordinate targeting unreliable; panorama refs or curated search better
Icons / transparent assets Use GPT Gemini can't do transparency
Text rendering on images Use GPT GPT Image 1.5 better at text
Split strategy: Use Gemini for scenes, stock photo replacement, and business hero images. Use GPT Image 1.5 for icons, transparent assets, and text-on-image. Cost per image: ~$0.05 with search context references, generated in ~25 seconds. Add AI curation + QA for critical images (~$0.08 total).

Production Pipeline

The validated workflow for generating client-ready hero images.

1

Search

Two search queries: location context + industry context. Download 6-8 candidates.

2

Curate

Gemini Flash vision ranks candidates by location accuracy, quality, and usefulness. Top 3-4 selected.

3

Prompt

Narrative style with subject, location, composition, camera specs

4

Generate

Gemini 3.1 Flash Image, 16:9, temperature 0.7

5

QA Verify

Vision model checks output against refs. If issues found, regenerate with feedback. 2 passes max.

Experiment Log

All 9 experiments in chronological order.

# Experiment Images Key Finding
1 Search Grounding Modes 15 Image grounding helps regional landmarks, not generic scenes
2 Multi-Model Benchmark 12 Gemini best for scenes, GPT for icons/text
3 Reference-Inspired Generation 15 Detailed prompt + reference beats grounding for generic scenes
4 Regional Location Accuracy 16 Grounding only activates for 3/8 locations; training data surprisingly good
5 Multi-Reference Pipeline 9 Multi-ref (3+) is the accuracy winner; we control the references
6 Street View + High-Ref-Count 7 Street View coordinates fragile; model ignores bad refs gracefully
7 Hero Consistency 9 16:9 hero images with text overlay zones work reliably
8 Same-Prompt Repeatability 3 Consistent location accuracy; viewpoint varies ~20-30 degrees
9 Client Scenarios 4 All 4 business types genuinely ship-ready
10 Smart Reference Selection + QA Loop 6 AI curation + QA verification loop dramatically improves accuracy
10b Streetview Panorama References 3 360-degree panoramas provide best reference quality; solved Tomaree problem
12 Expanded Business Types 11 11/12 business types client-ready; trades images exceptionally strong
13 Multi-Source Reference Selection 3 4 sources (Google Images, Maps Places, Wikimedia, Streetview); AI curation rejects wrong locations, events, night shots