Flux 2 Dev Text To Image LoRA
Playground
Try it on WaveSpeedAI!FLUX.2 [dev] with LoRA support delivers fast, studio-quality text-to-image generation with enhanced realism, crisper text rendering, and personalized styles via custom LoRA adapters. Extends FLUX.2 [dev] with up to 4 LoRAs for brand-specific outputs. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing.
Features
FLUX.2 [dev] with LoRA support is the personalised version of the lean FLUX.2 [dev] Text-to-Image model. It keeps the fast, stable base behaviour, while letting you plug in up to 4 custom LoRA adapters to inject your own styles, characters, or brand identity into each generation.
Good for
- Rapid prototyping with personalised visual styles
- Brand-specific image generation at scale
- Character-consistent content (mascots, VTubers, OCs, etc.)
- Custom training workflows based on LoRA fine-tuning
- Teams that need both speed and fine-grained style control
LoRA-powered personalisation on a lean base
FLUX.2 [dev] + LoRA starts from the same lightweight, production-friendly dev model and adds adapter hooks for your own LoRAs. You can mix several adapters in one request, control their strengths independently, and still get the fast turnaround and predictable behaviour that make dev a good “default” engine.
Why Choose this
• Familiar dev behaviour, with extra style control
You get the same quick, reliable generations as FLUX.2 [dev] Text-to-Image, plus the ability to load custom LoRAs for specific art styles, brand looks, or recurring characters.
• Up to 4 LoRAs in a single run
Attach as many as four adapters at once and give each one its own strength (0–4). Combine, for example, a character LoRA, a lighting/style LoRA, and a brand-colour LoRA in one prompt to keep everything consistent across outputs.
• Style-consistent batches
Generate 1–4 images per request with the same LoRA stack, making it easy to produce A/B variants, campaign sets, or social content packs that share a coherent visual identity.
• Open, transparent foundation
Built on the same open FLUX.2 stack as the base dev model, so integrating with your own LoRA training, management, and deployment tooling is straightforward.
• Cost-effective customisation
LoRA adapters add only a small overhead compared with full fine-tuning, which keeps per-image costs low even when you apply several custom styles.
Pricing
Simple per-image billing:
- $0.018 per generated image
FLUX.2 [dev] family on WaveSpeedAI
- FLUX.2 [dev] Text-to-Image – base model without LoRA for the fastest, most lightweight generation.
- FLUX.2 [dev] Edit – refine and update existing images with prompt-based edits.
- FLUX.2 [dev] Edit LoRA – image editing that also supports LoRA-based personalisation.
More LoRA Support Image Tools
- qwen-image/edit-plus-lora – combines Qwen’s strong semantic understanding with LoRA-based style control for precise, localised edits that still preserve overall composition.
- FLUX Kontext LoRA – a FLUX.2 dev LoRA stack optimised for cleaner prompts, better context handling, and more coherent, production-friendly generations.
- SDXL-LoRA – a collection of SDXL LoRAs offering a wide range of ready-made styles and subjects, ideal for fast customisation without full fine-tuning.
LoRA resources
Authentication
For authentication details, please refer to the Authentication Guide.
API Endpoints
Submit Task & Query Result
set -euo pipefail
export WAVESPEED_API_KEY="your-api-key"
REQUEST_BODY=$(cat <<'JSON'
{
"prompt": "A cinematic ocean wave at sunrise, highly detailed",
"size": "1024*1024",
"seed": -1
}
JSON
)
# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
-X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/flux-2-dev/text-to-image-lora" \
-H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
-H "Content-Type: application/json" \
-d "${REQUEST_BODY}")
TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
printf 'Submission response did not contain a prediction id
' >&2
exit 1
fi
RESULT_URL=$(printf '%s' "${TASK}" | jq -r '.urls.get // empty')
if [ -z "${RESULT_URL}" ]; then RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"; fi
# 2. Poll until the prediction finishes.
while true; do
RESPONSE=$(curl --silent --show-error --fail-with-body \
"${RESULT_URL}" \
-H "Authorization: Bearer ${WAVESPEED_API_KEY}")
RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')
case "${STATUS}" in
completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
failed|cancelled|timeout) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
created|processing) sleep 2 ;;
*) printf 'Unexpected status: %s
' "${STATUS}" >&2; exit 1 ;;
esac
doneParameters
Task Submission Parameters
Request Parameters
| Parameter | Type | Required | Default | Range | Description |
|---|---|---|---|---|---|
| prompt | string | Yes | - | The positive prompt for the generation. | |
| size | string | No | 1024*1024 | - | The size of the generated media in pixels (width*height). |
| loras | array<object> | No | 0 ~ 3 items | List of LoRAs to apply (max 3). | |
| seed | integer | No | -1 | - | The random seed to use for the generation. -1 means a random seed will be used. |
| enable_base64_output | boolean | No | false | - | If set to `true`, the prediction's `output` strings are returned as **naked base64** (no `data:<mime>;base64,` prefix). When `false` (default), outputs are returned as URLs pointing to our CDN. |
| enable_sync_mode | boolean | No | false | - | If set to `true`, the request attempts to wait for the generated result and return outputs in the same response. If the result is not ready within the sync wait window, the API can return a timeout body while the task continues processing. This option is only available via the API and is supported only by some models. |
Response Parameters
| Parameter | Type | Description |
|---|---|---|
| code | integer | HTTP status code (e.g., 200 for success) |
| message | string | Status message (e.g., “success”) |
| data.id | string | Unique identifier for the prediction, Task Id |
| data.model | string | Model ID used for the prediction |
| data.outputs | array | Output values, usually URL strings; some models return text strings or structured result objects (empty when status is not completed) |
| data.urls | object | Object containing related API endpoints |
| data.urls.get | string | URL to retrieve the prediction result |
| data.status | string | Status of the task: created, processing, completed, or failed |
| data.created_at | string | ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”) |
| data.error | string | Error message (empty if no error occurred) |
| data.timings | object | Object containing timing details |
| data.timings.inference | integer | Inference time in milliseconds |
Result Request Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| id | string | Yes | - | Task ID |
Result Response Parameters
| Parameter | Type | Description |
|---|---|---|
| code | integer | HTTP status code (e.g., 200 for success) |
| message | string | Status message (e.g., “success”) |
| data | object | The prediction data object containing all details |
| data.id | string | Unique identifier for the prediction |
| data.model | string | Model ID used for the prediction |
| data.outputs | array<string | object> | Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model. |
| data.urls | object | Object containing related API endpoints |
| data.urls.get | string | URL to poll for the prediction result |
| data.status | string | Status: created, processing, completed, or failed |
| data.created_at | string | ISO timestamp of when the request was created |
| data.error | string | Error message (empty if no error occurred) |
| data.timings | object | Object containing timing details |
| data.timings.inference | integer | Inference time in milliseconds |