seedinteger
The seed to use for the generation. If not provided, a random seed will be used.
Flux 2 Turbo Text to Image
bfl/flux-2/turboFlux 2 Turbo by BFL - generate stunning images from text prompts with state-of-the-art AI. Supports multiple aspect ratios, styles, and high-resolution output for creative and commercial use.
Try the model
Playground
Input
The prompt to generate an image from.
Additional Settings More
Customize your input with more control.
020
Guidance Scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you. Range: 0 to 20.
The format of the generated image. Allowed values: jpeg, png.
The aspect ratio of the generated image. Allowed values: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16.
The seed to use for the generation. If not provided, a random seed will be used.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "prompt": "A realistic photograph of a vintage typewriter with a sheet of paper inserted that says 'Chapter One: The Journey Begins,' sunlight falling across the desk." }
Human preference
Arena
Elo ratings from blind side-by-side votes, compared with other image and video models.
Rankings sourced from Artificial Analysis Arena
- Leaderboard
- Text to Image
- Rank
- #49 of 106
- Elo
- 994 ±11
- Gap to #1
- −228
Text-to-image arena: people pick the better of two images generated from the same prompt, without seeing the model names.
- #44FLUX.2 [pro]1003±10
- #45Ideogram 4.01002±10
- #46FLUX.2 [dev]1000
- #47Ming-Image-0.1-Design999±9
- #48P-Image-Ideogram (High)995±14
- #49FLUX.2 [dev] Turbo994±11
- #50Cosmos3-Super-Text2Image (agentic)993±10
- #51Luma UNI 1992±12
- #52P-Image-Ideogram (Very High)992±15
- #53Qwen Image 2.0 (2026-03-03)990±16
Flux 2 Turbo Text to Image
FLUX.2 Turbo, a distilled FLUX.2 for fast generation. Text to image.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Text instruction. |
guidance_scale | number 0–20 | 2.5 | How strictly to follow the prompt. |
output_format | jpeg / png | png | Output file format. |
aspect_ratio | 21:9 / 16:9 / 3:2 / 4:3 / 5:4 / 1:1 / 4:5 / 3:4 / 2:3 / 9:16 | 16:9 | Output shape. |
seed | integer | random | Fix it to compare prompt changes. |
Billing
$0.04 per image.
| Request | Price |
|---|---|
| One image | $0.04 |
Failed runs are not charged.
Prompting
- Write subject, setting, composition, style, then light.
- Quote any text that must appear.
Limits
- One output image per request.
Also on SandBase
Other FLUX.2 endpoints: bfl/flux-2/max, bfl/flux-2/pro, bfl/flux-2/flex, bfl/flux-2/dev, bfl/flux-2/turbo/edit.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "bfl/flux-2/turbo",
"prompt": "A realistic photograph of a vintage typewriter with a sheet of paper inserted that says 'Chapter One: The Journey Begins,' sunlight falling across the desk.",
"aspect_ratio": "16:9",
"output_format": "png",
"guidance_scale": 2.5
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
status=$(printf '%s' "$result" | jq -r .status)
case "$status" in completed|failed|timeout) break ;; esac
sleep 2
result=$(curl --fail-with-body --silent \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
"https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"2. Authentication
Create a SandBase API key and set it in your server environment. All requests use Bearer authentication.
export SANDBASE_API_KEY="YOUR_API_KEY"Keep the key on your server. Do not expose it in browser code or commit it to a repository.
3. Queue
Submit a request
POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.
Fetch request status and result
Use the returned run ID to poll until the status is completed, failed or timeout. Read output only after completed.
curl "https://api.sandbase.ai/v1/run/$RUN_ID" \
-H "Authorization: Bearer $SANDBASE_API_KEY"4. Files
Hosted files
Pass a publicly accessible file URL in the model’s image, video or audio field. Supported formats and limits are shown beside each Playground input.
Uploading images
Use the upload or replace control on supported image fields in the Playground. Video URL fields accept a hosted driving video; they do not imply video-upload support.
5. Schema
Input
promptstringrequired
The prompt to generate an image from.
aspect_ratiostring
The aspect ratio of the generated image.
Default: "16:9"
Possible values: "21:9", "16:9", "3:2", "4:3", "5:4", "1:1", "4:5", "3:4", "2:3", "9:16"
output_formatstring
The format of the generated image.
Default: "png"
Possible values: "jpeg", "png"
guidance_scalenumber
Guidance Scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you.
Default: 2.5
Minimum: 0
Maximum: 20
{
"model": "bfl/flux-2/turbo",
"prompt": "A realistic photograph of a vintage typewriter with a sheet of paper inserted that says 'Chapter One: The Journey Begins,' sunlight falling across the desk.",
"aspect_ratio": "16:9",
"output_format": "png",
"guidance_scale": 2.5
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"source": "BFL/FLUX schema mirror",
"source_url": "https://docs.bfl.ai/flux_2/flux2_overview",
"url": "https://static.sandbase.ai/examples/f66b7a8d-1470-432c-a22c-c2987673976c/output/1585c67d-b8c9-4472-8f3e-c41806ea961e.png"
}
]