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AI Image - BiRefNet v2

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Modelo:
+ GPT-5, Claude, Gemini
Image model Premium
BiRefNet v2 — BiRefNet v2 is a image model by Free.ai, available on Free.ai. Each image costs approximately 33,750 tokens. Compare against our self-hosted models which run free within your daily limit.
~5000 tokens/por imagen
0%
Starting generation...

What is BiRefNet v2?

BiRefNet v2 is a image model by Free.ai, available on Free.ai. Each image costs approximately 33,750 tokens. Compare against our self-hosted models which run free within your daily limit.

Why use BiRefNet v2 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 serene mountain lake at sunrise, mist over the water, photorealistic
Astronaut riding a horse on Mars, cinematic lighting, high detail
Macro shot of a single dewdrop on a green leaf, morning light
Watercolor illustration of a quiet bookstore at night, warm window glow
Studio portrait of a golden retriever puppy on a soft blue backdrop
Retro travel poster of Mt. Fuji, flat 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 → · Comparar modelos de imagen →

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BiRefNet v2 is a image model by Free.ai, available on Free.ai. Each image costs approximately 33,750 tokens. Compare against our self-hosted models which r...

Cómo usar AI Image - BiRefNet v2

1
Introduzca su entrada

Escriba texto, cargue un archivo o describa lo que desee. No necesita cuenta.

2
Haga clic en generar

Nuestra IA procesa su solicitud en segundos utilizando los mejores modelos de código abierto.

3
Descargar & compartir

Descarga, copia o comparte tu resultado. Gratis para uso personal y comercial.

Utilice esta herramienta a través de API

Automatice esta herramienta a partir de su propio código. Endpoint REST compatible con OpenAI, Auth Token de Portador, no requiere SDK adicional. Los costos de token coinciden con la interfaz web.

Documentación API Obtener clave de API 
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 - BiRefNet v2 — FAQ

BiRefNet v2 is a image model by Free.ai, available on Free.ai. Each image costs approximately 33,750 tokens. Compare against our self-hosted models which run free within your daily limit.

BiRefNet v2 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 BiRefNet v2 without spending anything.

It depends on the prompt. Free.ai lets you compare BiRefNet v2 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/birefnet-v2/ for the full breakdown.

On Free.ai, BiRefNet v2 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/birefnet/v2" and include your Bearer token. Full reference: /api/.

BiRefNet v2 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.

Regístrate gratis por 10.000 tokens

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