Black Forest Labs ProprietaryAug 2024

FLUX.1 Pro

Sharp photorealism + the best text-in-image rendering in the industry.

Intelligence index
Composite of MMLU, GPQA, MATH & HumanEval
Speed
Median across providers, steady state
Price per image
$0.050
At default resolution

FLUX.1 Pro Overview at a Glance

FLUX.1 Pro is a text-to-image model from Black Forest Labs, first released on 1 August 2024. It is proprietary (closed-weights) and sits in the text to image, image, and enterprise categories of our catalog. Sharp photorealism + the best text-in-image rendering in the industry. This page covers FLUX.1 Pro pricing, benchmarks, API limits, speed, modalities, best use cases, and how it compares with similar models — so you can decide whether it belongs in your stack in 2026.

FLUX.1 Pro generates still images from text prompts at roughly $0.050 per image at default settings. Image models are judged on prompt adherence, aesthetic quality, text rendering inside images, resolution options, commercial licensing clarity, and whether you can self-host or only call a hosted API. Because FLUX.1 Pro is proprietary (closed-weights), access is through the provider’s product or partner APIs rather than downloadable weights.

Creative and product teams use FLUX.1 Pro for concept art, ad creatives, UI mock placeholders, storyboards, and rapid visual exploration. It is especially well suited for product imagery, realistic portraits, and ads with text. Strengths called out in our notes include photorealism, renders text correctly, and fast. Limitations to plan around include closed weights (schnell is open). Use this review to compare FLUX.1 Pro pricing, feature limits, and example use cases against Midjourney, FLUX, DALL·E, and Stable Diffusion alternatives.

Buying checklist for FLUX.1 Pro: confirm commercial rights for your channel, test text-in-image and brand-color fidelity on real briefs, measure average regenerations per approved asset, and model monthly cost at peak campaign volume. The pricing, modalities, pros & cons, comparison, and FAQ sections below are written for those long-tail queries — “FLUX.1 Pro pricing”, “FLUX.1 Pro API”, and “FLUX.1 Pro vs alternatives” — not just a specs dump.

Price per image
$0.050
Time to first token
6s
Input modalities
text
Output modalities
image
License
Proprietary
Provider
Black Forest Labs
Strengths
  • Photorealism
  • Renders text correctly
  • Fast
Weaknesses
  • Closed weights (Schnell is open)
Best for
  • Product imagery
  • Realistic portraits
  • Ads with text

FLUX.1 Pro Pricing

FLUX.1 Pro is billed per generated image at about $0.050 for default resolution and quality. Higher resolutions, extra inference steps, or upscalers usually cost more. Subscription products (where offered) may bundle a monthly image quota instead of pure pay-as-you-go.

For marketing or product pipelines, model unit economics as images-per-dollar and revision rate. A cheaper model that needs three regenerations can lose to a pricier model with better first-pass adherence. Track cost-per-approved-asset, not cost-per-generation, when you compare FLUX.1 Pro with Midjourney, FLUX, or DALL·E.

If FLUX.1 Pro is only sold via subscription, convert your monthly plan into an effective per-image rate at your expected utilization. Idle seats make “unlimited” plans expensive; burst campaigns can still favor pay-as-you-go APIs.

Price per image
$0.050 (default settings)
Approx. 100 images
$5.00
Approx. 1,000 images
$50.00

FLUX.1 Pro Benchmarks

FLUX.1 Pro is a text-to-image model, so classic LLM suites (MMLU, GPQA, HumanEval) do not apply. Instead, judge quality with side-by-side generations, human preference tests, and modality-specific metrics (FID/CLIP for images, FVD/motion coherence for video, MOS/WER-adjacent listening tests for speech). We highlight qualitative strengths and peer comparisons further down this page.

FLUX.1 Pro API Pricing

FLUX.1 Pro API access (when offered) meters generations rather than tokens. Confirm whether failed or moderated jobs are billed, whether upscaling is separate, and whether commercial rights are included in the base rate. If only a consumer subscription exists, treat per-image catalog figures as planning estimates.

Integration tips: store seed and prompt metadata for reproducibility, enqueue generations asynchronously, and expose a human review step before publishing. Those operational choices affect effective FLUX.1 Pro API cost as much as the sticker price.

Always verify live rates on the official docs — our figures are refreshed periodically (last catalog update: 2026-06) and providers change list prices. Official reference: https://docs.bfl.ml/.

FLUX.1 Pro Context Window

Context window is an LLM concept and does not map 1:1 onto FLUX.1 Pro. For text-to-image models, the practical limits are prompt length caps, max resolution/duration, and concurrent job quotas set by Black Forest Labs. Check the official docs for the latest hard limits on prompt characters and output size.

Think of “context” for FLUX.1 Pro as the creative brief you can pack into one job: style references, negative prompts, camera notes, and brand constraints. If the product truncates long prompts, move durable instructions into saved presets or project settings instead of repeating them every call.

FLUX.1 Pro Input / Output Modalities

FLUX.1 Pro accepts text as input and produces image as output. Knowing the modality matrix matters when you design pipelines — for example, vision-capable language models can take screenshots or PDFs as images, while pure text models need an OCR or captioning step first.

If you need bidirectional voice, native video understanding, or tool-use with multimodal arguments, confirm support in Black Forest Labs’s API schema rather than assuming parity with the consumer chat app. Modality support also affects pricing: image or audio inputs may be tokenized differently than plain text.

For FLUX.1 Pro, text prompts are the primary control surface; some UIs also accept image references or style anchors. Output is a raster image (and sometimes multiple variants). Plan storage, CDN delivery, and moderation on the image bytes you receive.

Inputs
text
Outputs
image

FLUX.1 Pro Token Limits

FLUX.1 Pro is not metered in LLM tokens. Limits show up as max prompt length, max output duration/resolution, and account rate limits. Treat the pricing rows above as the cost unit, and consult Black Forest Labs for concurrency and fair-use caps.

Operationally, set guardrails in your app: maximum jobs per user, maximum output duration/resolution, and backoff when Black Forest Labs returns 429s. Those application-level limits prevent surprise bills even when the model API itself is flexible.

FLUX.1 Pro Speed

Generation latency for FLUX.1 Pro depends on resolution, duration, and queue depth at Black Forest Labs. Our snapshot lists a typical turnaround near 6 seconds under default settings. Production apps should implement async jobs, webhooks, and retries rather than blocking user requests on cold starts.

Typical generation time
6s

FLUX.1 Pro Performance Charts

Because FLUX.1 Pro is a text-to-image model, we emphasize qualitative and pricing comparisons rather than LLM benchmark bars. The similar-models section below is the primary performance chart substitute — scan price-per-unit and feature notes to position FLUX.1 Pro in the market.

Intelligence index vs similar models

FLUX.1 Pro
Midjourney v6.1
DALL·E 3
GPT-5.582

Comparison with Similar Models

Choosing an AI model is rarely absolute — it is relative to the next-best option. FLUX.1 Pro is most often weighed against Midjourney v6.1, DALL·E 3, and GPT-5.5. Compare intelligence (or generation quality), latency, price, license, and modality support. A slightly weaker but much cheaper model can win for high-volume workloads; a pricier frontier model wins when a single mistake is expensive.

Use the links and table below for structured FLUX.1 Pro vs alternatives research. We also maintain dedicated head-to-head pages for popular matchups when available. If you are standardizing on Black Forest Labs, check sibling models from the same lab before leaving the ecosystem.

For text-to-image models, run the same creative brief through FLUX.1 Pro and two peers, blind-rank outputs with stakeholders, and only then look at price. Quality gaps are often obvious in a side-by-side grid even when benchmarks are unavailable.

Also compare licensing and brand-safety defaults — a model that is slightly prettier but blocks commercial use (or watermarks exports) can be a non-starter for client work. Factor those constraints into the FLUX.1 Pro decision, not just aesthetics.

ModelProviderIntelligenceSpeedPrice
FLUX.1 ProBlack Forest Labs$0.050/img
Midjourney v6.1Midjourney$0.020/img
DALL·E 3OpenAI$0.040/img
GPT-5.5OpenAI8295 t/s$7.50/1M

FLUX.1 Pro Best Use Cases

Best use cases for FLUX.1 Pro follow from its strengths, price point, and modality support. Match the model to the job: frontier reasoning for hard planning, fast/cheap tiers for classification, image/video/speech specialists for media pipelines.

Based on catalog notes, FLUX.1 Pro is a particularly strong fit for product imagery, realistic portraits, and ads with text. Validate with a short bake-off on your real prompts before a full cutover.

Strong fits include rapid concept exploration, campaign variants, and product mock imagery. Weaker fits include final print assets that need pixel-perfect typography or strict brand illustration systems unless you heavily post-edit FLUX.1 Pro outputs.

  • Product imagery
  • Realistic portraits
  • Ads with text

FLUX.1 Pro Pros & Cons

Every model trades quality, speed, cost, and openness. Here is a concise pros and cons list for FLUX.1 Pro drawn from our catalog strengths and weaknesses — pair it with your own evals before committing.

Read pros as “reasons to shortlist” and cons as “risks to mitigate,” not as deal-breakers in isolation. A listed weakness (for example higher price or smaller context) may be irrelevant if your workload is bursty, short-context, or already standardized on Black Forest Labs.

After scanning this list, jump to the comparison table and FAQ for decision support, then lock a trial window with success metrics before replacing a production model with FLUX.1 Pro.

Pros
  • Photorealism
  • Renders text correctly
  • Fast
Cons
  • Closed weights (Schnell is open)

FLUX.1 Pro — frequently asked questions

FLUX.1 Pro is a text-to-image model from Black Forest Labs, released on 1 August 2024. Sharp photorealism + the best text-in-image rendering in the industry.

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