Black Forest Labs' flagship: benchmark photorealism and readable text on images. From $0.04 per image — no subscription, tokens never expire.
Flux is the model family from Black Forest Labs, the German studio founded by the creators of Stable Diffusion. Where Midjourney is famous for artistry, Flux is famous for photorealism: skin, fabric, light and lens behavior look like an actual photograph, and lettering on images comes out readable. The current generation is FLUX.2.
The lineup has two personalities: Flux 2 Pro — the fast flagship for everyday work, and Flux 2 Flex — a version with extended quality controls for the most demanding jobs. There's also the Flux Kontext pair (Pro and Max): editing models that change an uploaded image by text instruction while leaving everything else untouched — "replace the text on the sign", "put a red jacket on him".
The official Black Forest Labs API bills per megapixel and requires a separate developer account. On NeuralBox, Flux 2 Pro costs just $0.04 per image — one of the cheapest flagship models in the catalog. No subscription: pay by card (Stripe) or crypto (USDT, BTC, ETH), tokens never expire, and one balance covers 300+ AI models. API access is included.
Flux responds well to photo-brief style descriptions: subject, light, lens, mood.
| Resolution | 1K / 2K (Pro and Flex) |
| Aspect ratios | 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3 (+ 21:9 in Kontext) |
| Editing | Flux Kontext Pro / Max — edit an uploaded image by instruction |
| Reference | image-to-image generation from a reference picture |
| Photo uploads | up to 50 MB per file |
| Prompt language | English (recommended), most other languages supported |
| API access | yes — NeuralBox API |
| Model | Our price | ≈ USD | Official BFL API |
|---|---|---|---|
| Flux 2 Pro — 1K | 1,250 tokens | ≈ $0.04 | — |
| Flux 2 Pro — 2K | 1,750 tokens | ≈ $0.06 | — |
| Flux 2 Flex — 1K | 3,500 tokens | ≈ $0.12 | ≈ $0.06+/MP |
| Flux Kontext Pro | 1,250 tokens | ≈ $0.04 | — |
| Flux Kontext Max | 2,500 tokens | ≈ $0.08 | ≈ $0.07+/MP |
Token rate shown for the Basic plan ($5 = 150,000 tokens); larger plans cut token cost by up to 40%. The official Black Forest Labs API bills per megapixel (e.g. Flex — $0.06/MP) and requires a separate developer account.
An image generation model family from Black Forest Labs — the studio founded by the creators of Stable Diffusion. FLUX.2 is the current generation, known for photorealism and accurate text rendering.
Midjourney is about artistry and style; Flux is about photorealism — the result looks like a photograph, not an illustration. For product shots, camera-style portraits and mockups with lettering, Flux is usually more accurate. Both models are on NeuralBox.
An editing model: upload an image and describe the change ("replace the text on the sign with…", "make it night") — Kontext changes only what you asked and preserves the rest. Pro covers typical edits, Max handles complex ones.
By card via Stripe or with crypto (USDT, BTC, ETH and others). No subscription — you buy tokens and spend them on any of 300+ models on the platform.
Flux 2 Pro — $0.04 (1K) and $0.06 (2K). Kontext Pro — $0.04 per edit. The $2 starter pack covers 16 images.
Pro is the fast flagship at the lowest price and covers 90% of tasks. Flex offers extended quality and detail controls at roughly three times the price — pick it when Pro falls short.
No. Your balance is pay-as-you-go: tokens never expire and there are no monthly fees or auto-renewals.
Yes, every Flux model is available via the NeuralBox API — documentation at neuralbox.io/api.