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AI Image - FLUX.2 Flex

Dùng thương mại được. 380+ mẫu Không dấu nước Không cần đăng ký
Mô hình:
+ GPT-5, Claude, Gemini
Image model Premium
FLUX.2 Flex — FLUX.2 Flex is a image model by Black Forest Labs, available on Free.ai. Each image costs approximately 45,000 tokens. Compare against our self-hosted models which run free within your daily limit.
~5000 tokens/image
0%
Starting generation...

What is FLUX.2 Flex?

FLUX.2 Flex is a image model by Black Forest Labs, available on Free.ai. Each image costs approximately 45,000 tokens. Compare against our self-hosted models which run free within your daily limit.

Why use FLUX.2 Flex for image generation?

Text-to-image

Type a description, get an image. Style, aspect ratio, and batch count are all controllable from the form above.

Aspect ratios

Square, landscape, portrait, 4:3, 3:4. Pick the ratio in the form so the model frames the shot for that shape.

Batch generate

Pick 1, 2, or 4 in the count field above. For larger fan-outs use /image/generate/ which sends one prompt to multiple models in parallel.

Commercial use OK

No watermark, outputs are yours. Commercial use is in scope across every model on Free.ai.

Sample prompts

A neon-drenched Tokyo alley in the rain, cinematic 35mm photo, ultra-detailed
Cozy cabin in the snowy woods at golden hour, warm window light, oil painting
Studio product shot of a matte-black ceramic mug on white seamless background
Watercolor portrait of a fox wearing tiny wire-rimmed glasses, soft pastel palette
Cyberpunk street vendor cooking ramen, steam, neon signage, low-angle shot
Minimal flat-design poster for a music festival, geometric shapes, 4 bold colors

Pricing

Premium image. Cost is per image — typically ~5000 tokens. $1 buys 750,000 tokens; a $5 token pack covers many images. Free signups get 10,000 tokens to try.

Compare to alternatives

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Face-to-Sticker Premium

Face-to-Sticker is a image model by Free.ai, available on Free.ai. Each image costs approximately 45,000 tokens. Compare...

Full model reference → · See all image models → · Compare 2 image models side-by-side →

Advanced options
Kết quả
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Đang xử lý yêu cầu của bạn...

FLUX.2 Flex is a image model by Black Forest Labs, available on Free.ai. Each image costs approximately 45,000 tokens. Compare against our self-hosted mode...

Cách sử dụng AI Image - FLUX.2 Flex

1
Nhập thông tin

Nhập văn bản, tải lên tập tin, hoặc mô tả điều bạn muốn. Không cần tài khoản.

2
Nhấn để tạo

AI của chúng tôi xử lý yêu cầu của bạn trong vài giây sử dụng các mô hình nguồn mở tốt nhất.

3
Tải về và chia sẻ

Tải xuống, sao chép, hoặc chia sẻ kết quả của bạn. Miễn phí cho sử dụng cá nhân và thương mại.

Use this tool via API

Automate this tool from your own code. OpenAI-compatible REST endpoint, Bearer-token auth, no extra SDK required. Token costs match the web interface.

API Documentation Get API Key 
curl -X POST https://api.free.ai/v1/image/generate/ \
  -H "Authorization: Bearer sk-free-..." \
  -H "Content-Type: application/json" \
  -d '{"prompt": "A sunset over mountains", "model": "sdxl"}'

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AI Image - FLUX.2 Flex — FAQ

FLUX.2 Flex is a image model by Black Forest Labs, available on Free.ai. Each image costs approximately 45,000 tokens. Compare against our self-hosted models which run free within your daily limit.

FLUX.2 Flex works well for general-purpose image generation, illustration, and product visuals. Try the sample prompts above to see its strengths.

About 5,000 tokens per image. $1 buys 750,000 tokens, and a free Free.ai account includes 10,000 signup tokens plus a daily refill, so most users can try FLUX.2 Flex without spending anything.

It depends on the prompt. Free.ai lets you compare FLUX.2 Flex side-by-side with any other model at /image/compare/ — pick a sibling from the alternatives list to see how they differ on the same input.

Yes. Free.ai does not add watermarks and the outputs are yours to use commercially. See /apps/flux-2-flex/ for the full breakdown.

On Free.ai, FLUX.2 Flex supports 1:1 (square), 16:9 (landscape), 9:16 (portrait), 4:3, and 3:4. Pick the ratio in the form above before generating.

Most images come back in 5-25 seconds depending on the model and current GPU load. The result appears inline; signed-in users can also Add to queue to close the tab and get notified when it lands.

Yes — pick 1, 2, or 4 in the count field. Each image deducts about 5,000 tokens. For larger batches use /image/generate/ which fans out the same prompt across multiple models in parallel.

Free.ai does not train models on your prompts. Self-hosted models stay on our GPUs. Premium models route to the upstream provider for inference. Either way we never resell your data.

Yes. POST to /v1/image/generate/ with model="premium/flux-2/flex" and include your Bearer token. Full reference: /api/.

FLUX.2 Flex is a premium model served by an external provider, so self-hosting is not available. Free.ai exposes it with token-based pricing instead.

Free accounts get 10,000 signup tokens plus a daily pool. When that runs out, top up starting at $1 (750K tokens) — no subscription required.

Sign up free for 10,000 tokens

Tạo tài khoản miễn phí

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