FLUX.2 DevOpen
Open-weight FLUX.2 tier for self-hosting, fine-tuning and LoRA workflows.
Quality Domain Radar
6-Axis Frontier Evaluation vs Category Average & Flagship
Radar axes are approximated from category scores where direct benchmark measurements are missing — see Methodology.
Strengths & Trade-offs
Where it wins
- Near-Pro image quality you can self-host
- Fits an RTX 4090 at Q4 — no datacenter needed
- Thriving LoRA/fine-tune ecosystem
- ~3× cheaper than Pro on hosted APIs
Trade-offs to watch
- Slightly below Pro on hard prompts
- Non-commercial terms on some deployments
- No 4K output in the open checkpoint
Killer Use Cases
Developer Quickstart & API
BFL_API_KEY first — get an API keycurl -X POST "https://api.bfl.ml/v1/flux-2-dev" \
-H "x-key: $BFL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"prompt": "Isometric render of a neon data center, sharp typography",
"width": 1024,
"height": 1024
}'import os, requests
resp = requests.post(
"https://api.bfl.ml/v1/flux-2-dev",
headers={"x-key": os.environ["BFL_API_KEY"]},
json={
"prompt": "Isometric render of a neon data center, sharp typography",
"width": 1024,
"height": 1024,
},
)
print(resp.json()["polling_url"]) # poll until status == "Ready"const res = await fetch("https://api.bfl.ml/v1/flux-2-dev", {
method: "POST",
headers: { "x-key": process.env.BFL_API_KEY, "Content-Type": "application/json" },
body: JSON.stringify({
prompt: "Isometric render of a neon data center, sharp typography",
width: 1024,
height: 1024,
}),
});
console.log((await res.json()).polling_url); // poll until status === "Ready"Async image API — the response returns a polling_url; poll it until status is Ready.
Official Resources & Links
Compare hosts & latency
Throughput, TTFT and cache pricing across Groq, Cerebras, Together, DeepInfra, Fireworks, Bedrock and Azure.
Scores by Source
Category Scores
Benchmark Results
Head-to-head Live Matchups
Live Specs & Architecture
- Same architecture as Pro, released under open weights
- Runs on a single 24GB GPU at Q4
- LoRA / DreamBooth fine-tuning supported
- Non-commercial-friendly open license
Estimated monthly bill
Cite & embed
Loading badge markdown...@misc{llmpodium2026flux2dev,
title = {Benchmark Analysis and Intelligence Evaluation of FLUX.2 Dev},
author = {LLMPodium Research},
year = {2026},
url = {https://llmpodium.com/models/flux-2-dev}
}Embed Score Badge
Add a live Podium Score badge to your GitHub or Hugging Face README — it links back to the live ranking.
Loading badge snippet...Loading badge snippet...More from Black Forest Labs
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