Image Gen API: Cost at 1K Images/Day
What does it cost to run image gen api at 1K images/day? Self-hosted dedicated GPU vs API provider pricing.
Monthly Cost at 1,000 Images Per Day
| Provider | Monthly Cost | Pricing Model | vs GigaGPU |
|---|---|---|---|
| GigaGPU (RTX 3090) | £89/mo | Fixed | — |
| Stability AI API | £150/mo | Per-images | 41% cheaper with GigaGPU |
| Midjourney | £96/mo | Per-images | 7% cheaper with GigaGPU |
| Replicate SDXL | £120/mo | Per-images | 26% cheaper with GigaGPU |
1,000 Images Daily: The Tipping Point
At 1K images/day (roughly 30K/month), you are generating enough content that per-image pricing starts to sting. Stability AI charges £150/month — 69% more than a dedicated RTX 3090 at £89. Even Midjourney at £96/month edges above your self-hosted cost.
The savings at this volume are modest in absolute terms — up to £732/year versus Stability AI. But the real advantage is what happens when your usage grows. At £89/month fixed, generating 2K or 3K images/day costs you nothing extra. On Stability AI, doubling volume doubles your bill.
For product teams generating marketing assets, e-commerce imagery, or content at scale, 1K/day is often just the starting point. Lock in flat pricing now and scale freely.
Advantages Beyond Cost
- No generation limits: API providers cap daily or monthly generations. A dedicated GPU generates as many images as it physically can — roughly 300-400 per hour for SDXL at 1024×1024.
- Custom model training: Fine-tune Stable Diffusion on your brand’s visual style. API providers do not let you deploy custom checkpoints.
- Content ownership: Generated images never pass through a third party’s servers. No concerns about data retention policies or training on your outputs.
- Speed control: Reduce inference steps for faster drafts, increase for final renders. Full pipeline control that APIs cannot match.
When APIs Are the Smarter Choice
- Sub-500 images/day: At lower volumes, the per-image cost difference is negligible and APIs save you operational overhead.
- Midjourney-specific quality: If your workflow relies on Midjourney’s particular aesthetic, there is no open-source equivalent yet.
- Zero infrastructure appetite: APIs handle everything. If DevOps is not your strength, that simplicity has real value.
Hardware Fit
The RTX 3090 at £89/month is ideal for 1K images/day. Its 24 GB VRAM runs SDXL with batching at roughly 6-10 images per minute, clearing your daily target in under 3 hours of compute time. The GPU is available for other workloads during off-peak hours. GigaGPU servers include CUDA, Docker, and ComfyUI-ready frameworks.
Generate Without Limits
1,000+ images per day at £89/month. No per-image fees, no API rate limits, no generation caps.
