FLUX.1 Pro.
Black Forest Labs' flagship image-gen model — closed/API.
1× Nvidia GeForce RTX 3060Ti LHR.
Most-aggressive quantisation we have a working recommendation for. Lower precision = less VRAM = cheaper hardware, at a small accuracy cost.
Cheapest hosted endpoints.
| Provider | Access | $/M in | $/M out | |
|---|---|---|---|---|
| Black Forest Labs API | api direct | — | — | |
| Replicate | hosted inference | — | — | |
| fal.ai | hosted inference | — | — |
Smaller models distilled from FLUX.1 Pro.
Lightweight student models trained to mimic FLUX.1 Pro's outputs.
Variants in the FLUX family.
Frequently asked.
How do I run FLUX.1 Pro?
Where can I access FLUX.1 Pro?
How much does it cost to run FLUX.1 Pro?
Is FLUX.1 Pro open-source or proprietary?
Cheapest hardware per quantisation.
Each row is one quantisation tier (the same weights compressed differently). Lower precision → lower VRAM → cheaper hardware, at the cost of small accuracy loss. $/hr refreshed hourly from each provider's API.
| Quantisation | Cheapest GPU config | Total VRAM | Live $/hr | tokens/sec | |
|---|---|---|---|---|---|
|
FP16
FP16 — half precision (default)
|
32 GB | — | — | Compare → | |
|
FP8
FP8 — 8-bit float (Hopper / Blackwell)
|
16 GB | $0.048/hr | — | Compare → | |
|
INT4
INT4 — 4-bit integer (~4× VRAM saving)
|
8 GB | — | — | Compare → |
What it costs per month across providers.
Estimate your monthly bill for FLUX.1 Pro across every host that publishes per-token pricing. Slide your token volumes; the chart + table re-rank cheapest-first.
No priced API access rows on file for FLUX.1 Pro yet.
Rent the GPU instead of paying per token.
For an open-weights model like FLUX.1 Pro, you can rent a GPU and serve inference yourself. The math: cheapest GPU rental × 730 hours/month + your electricity rate × power draw.
Assumes the GPU runs 24/7 at ~85% utilisation. If your traffic is bursty, you'll pay less for the API and probably more for the GPU (idle hours still cost rental). The breakeven analysis lives on the Self-host vs API breakeven tool.
About FLUX.1 Pro.
FLUX.1 Pro is Black Forest Labs' frontier text-to-image model, released August 2024. Closed-source / API-only via the Replicate / fal.ai / together.ai integrations. Best-in-class prompt adherence and text rendering as of late 2024 — beats SD 3.5 + Midjourney 6 on user-preference benchmarks. Black Forest is the team that built the original Stable Diffusion at Stability AI before founding BFL in 2024.