Recommendation:
If you need fast, on-brand ads at scale with minimal design skill, start with Canva AI. If you want distinctive, high-impact visuals that can lift CTR and you have time/budget for iteration and post-processing, use Midjourney (or other generative-image models) for hero imagery and then build final ads in a design tool.
Why: Canva AI wins for speed, templating, resizing and team handoff. Midjourney wins for uniqueness and artistic styles that stand out in crowded feeds — but it requires prompt skill, upscaling, licensing checks and more editing time.
Decision criteria (pick what matters most):
- Speed / volume: Canva AI (templates, instant sizes, copy suggestions).
- Distinctiveness / creative testing: Midjourney (custom visual styles, surreal/photoreal blends).
- Brand consistency: Canva AI (brand kits, fonts, color palettes baked in).
- Production polish: Midjourney + manual retouch (Photoshop/Canva for layout and legibility).
- Legal/compliance: Canva’s asset licensing and templates are safer for ads; confirm Midjourney terms for commercial use in your region.
- Budget & team: Small teams or low budgets → Canva AI. Design teams or agencies with budget for asset polishing → Midjourney.
Instagram ad specs (quick reference):
- Feed (square): 1080x1080 px (1:1).
- Stories / Reels: 1080x1920 px (9:16). Keep critical text in safe center (no bottom action overlap).
- Landscape: 1080x566 px (1.91:1).
- Video: MP4 H.264, reasonable bitrate, under platform limits (keep under a few dozen MB for quick loading).
Always export at high quality and test visually on device.
A/B testing setup (practical):
- Test one variable at a time (image only for first round). Hold copy, CTA, audience constant.
- Create 3–5 visual variants per ad set: 1 control (current best creative) + 2–4 new creatives.
- Budget split: equal daily budget per variant. If constrained, run head-to-head (2 variants) first.
- Duration: minimum 3–7 days or until each variant gets enough impressions/conversions. Aim for statistical confidence—ideally 50–100 conversions per variant, but if low-volume, prioritize CTR and CVR trends and iterative tests.
- Metrics: primary = CPA or ROAS; secondary = CTR, CPM, conversion rate. Watch early signs (CTR lift) but don’t declare winners until conversion data stabilizes.
- Scale winners gradually: double budget incrementally and monitor CPA creep.
Practical checklist before launch:
- Choose format (feed vs story vs reel). Export correct dimensions and file type.
- Build brand-safe variants (3–5 visuals). Keep one control.
- Use readable typography and clear CTA; keep text overlay <20% attention for creative clarity.
- Add UTM tracking and campaign naming convention for backend analysis.
- Set audiences (one audience per test) and keep bids consistent.
- Run at least one quick smoke test (24–48h) to check rendering/device issues.
- Log results and iterate: replace worst-performing variant, keep testing new styles.
Best-for / Avoid-if:
- Canva AI: Best for rapid campaigns, beginners, consistent brand kits. Avoid if you need highly unique, stylized hero imagery.
- Midjourney: Best for standout, influencer-style, or art-forward ads. Avoid if you don’t have time/budget for prompt tuning, retouching, or license vetting.
If you want, start creatives in Midjourney for hero images, then assemble/rescale/iterate faster in Canva AI. CTA: try Canva AI for rapid templating and resizing to cut launch time.
Compare Canva AI and Midjourney