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1
  ---
2
- license: apache-2.0
3
  base_model:
4
  - black-forest-labs/FLUX.1-dev
5
  base_model_relation: quantized
6
  pipeline_tag: text-to-image
7
  ---
8
 
 
9
 
10
- # Elastic model: Fastest self-serving models. FLUX.1-dev.
11
 
12
- Elastic models are the models produced by TheStage AI ANNA: Automated Neural Networks Accelerator. ANNA allows you to control model size, latency and quality with a simple slider movement. For each model, ANNA produces a series of optimized models:
 
 
13
 
14
- * __XL__: Mathematically equivalent neural network, optimized with our DNN compiler.
 
 
 
15
 
16
- * __L__: Near lossless model, with less than 1% degradation obtained on corresponding benchmarks.
17
 
18
- * __M__: Faster model, with accuracy degradation less than 1.5%.
19
 
20
- * __S__: The fastest model, with accuracy degradation less than 2%.
21
 
 
22
 
23
- __Goals of Elastic Models:__
 
 
 
 
 
24
 
25
- * Provide the fastest models and service for self-hosting.
26
- * Provide flexibility in cost vs quality selection for inference.
27
- * Provide clear quality and latency benchmarks.
28
- * Provide interface of HF libraries: transformers and diffusers with a single line of code.
29
- * Provide models supported on a wide range of hardware, which are pre-compiled and require no JIT.
30
 
31
- > It's important to note that specific quality degradation can vary from model to model. For instance, with an S model, you can have 0.5% degradation as well.
32
 
33
- -----
 
 
 
 
 
34
 
 
35
 
36
- ![image/png](https://cdn-uploads.huggingface.co/production/uploads/67991798ae62bd1f17cc22ed/2FXY0tqSGqZq76j5Tz4Vi.png)
37
- ![image/png](https://cdn-uploads.huggingface.co/production/uploads/6799fc8e150f5a4014b030ca/CuuzzA_csoRnzbaZq1U1x.png)
38
 
39
- ## Inference
 
 
 
 
 
 
 
40
 
41
- Currently, our demo model only supports 1024x1024, 768x768 and 512x512 outputs without batching (for B200 - only 1024x1024). This will be updated in the near future.
42
- To infer our models, you just need to replace `diffusers` import with `elastic_models.diffusers`:
43
 
44
  ```python
45
  import torch
@@ -53,6 +71,8 @@ pipeline = FluxPipeline.from_pretrained(
53
  mode_name,
54
  torch_dtype=torch.bfloat16,
55
  token=hf_token,
 
 
56
  mode='S'
57
  )
58
  pipeline.to(device)
@@ -64,69 +84,387 @@ for prompt, output_image in zip(prompts, output.images):
64
  output_image.save((prompt.replace(' ', '_') + '.png'))
65
  ```
66
 
67
- ### Installation
68
 
 
69
 
70
- __System requirements:__
71
- * GPUs: H100, L40s, B200, 5090
72
- * CPU: AMD, Intel
73
- * Python: 3.10-3.12
74
 
 
75
 
76
- To work with our models just run these lines in your terminal:
77
 
78
- ```shell
79
- pip install thestage
80
- pip install 'thestage-elastic-models[nvidia]' --extra-index-url https://thestage.jfrog.io/artifactory/api/pypi/pypi-thestage-ai-production/simple
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
81
 
82
- # or for blackwell support
83
- pip install 'thestage-elastic-models[blackwell]' --extra-index-url https://thestage.jfrog.io/artifactory/api/pypi/pypi-thestage-ai-production/simple
84
- pip install -U --pre torch --index-url https://download.pytorch.org/whl/nightly/cu128
85
- pip install -U --pre torchvision --index-url https://download.pytorch.org/whl/nightly/cu128
86
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
87
 
88
- pip install flash_attn==2.7.3 --no-build-isolation
89
- pip uninstall apex
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
90
  ```
91
 
92
- Then go to [app.thestage.ai](https://app.thestage.ai), login and generate API token from your profile page. Set up API token as follows:
93
 
94
- ```shell
95
- thestage config set --api-token <YOUR_API_TOKEN>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
96
  ```
97
 
98
- Congrats, now you can use accelerated models!
99
 
100
- ----
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
101
 
102
- ## Benchmarks
103
 
104
- Benchmarking is one of the most important procedures during model acceleration. We aim to provide clear performance metrics for models using our algorithms.
 
 
105
 
106
- ### Quality benchmarks
 
 
107
 
108
- For quality evaluation we have used: PSNR, SSIM and CLIP score. PSNR and SSIM were computed using outputs of original model.
109
- | Metric/Model | S | M | L | XL | Original |
110
- |---------------|---|---|---|----|----------|
111
- | PSNR | 30.22 | 30.24 | 30.38 | inf | inf |
112
- | SSIM | 0.72 | 0.72 | 0.76 | 1.0 | 1.0 |
113
- | CLIP | 12.49 | 12.51 | 12.69 | 12.41 | 12.41|
114
 
 
115
 
116
- ### Latency benchmarks
 
 
117
 
118
- Time in seconds to generate one image 1024x1024
119
- | GPU/Model | S | M | L | XL | Original |
120
- |-----------|-----|---|---|----|----------|
121
- | H100 | 2.71 | 3.0 | 3.18 | 4.17 | 6.46 |
122
- | L40s | 8.5 | 9.29 | 9.29 | 13.2 | 16|
123
- | B200 | 1.89 | 2.04 | 2.12 | 2.23 | 4.4|
124
- | GeForce RTX 5090 | 5.53 | - | - | - | -|
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
125
 
126
 
127
  ## Links
128
 
129
  * __Platform__: [app.thestage.ai](https://app.thestage.ai)
130
- <!-- * __Elastic models Github__: [app.thestage.ai](app.thestage.ai) -->
131
  * __Subscribe for updates__: [TheStageAI X](https://x.com/TheStageAI)
132
- * __Contact email__: contact@thestage.ai
 
1
  ---
2
+ license: other
3
  base_model:
4
  - black-forest-labs/FLUX.1-dev
5
  base_model_relation: quantized
6
  pipeline_tag: text-to-image
7
  ---
8
 
9
+ # Elastic model: FLUX.1-dev
10
 
11
+ ## Overview
12
 
13
+ ----
14
+
15
+ ElasticModels are the models produced by TheStage AI ANNA: Automated Neural Networks Accelerator. ANNA allows you to control model size, latency and quality with a simple slider movement, routing different compression algorithms to different layers. For each model, we have produced a series of optimized models:
16
 
17
+ - **XL**: Mathematically equivalent neural network, optimized with our DNN compiler.
18
+ - **L**: Near lossless model, with less than 1% degradation obtained on corresponding benchmarks.
19
+ - **M**: Faster model, with accuracy degradation less than 1.5%.
20
+ - **S**: The fastest model, with accuracy degradation less than 2%.
21
 
22
+ Models can be accessed via TheStage AI Python SDK: ElasticModels, or deployed as Docker containers with REST API endpoints (see Deploy section).
23
 
24
+ ## Installation
25
 
26
+ ---
27
 
28
+ ### System Requirements
29
 
30
+ | **Property**| **Value** |
31
+ | --- | --- |
32
+ | **GPU** | L40s, RTX 5090, H100, B200 |
33
+ | **Python Version** | 3.10-3.12 |
34
+ | **CPU** | Intel/AMD x86_64 |
35
+ | **CUDA Version** | 12.8+ |
36
 
 
 
 
 
 
37
 
38
+ ### TheStage AI Access token setup
39
 
40
+ Install TheStage AI CLI and setup API token:
41
+
42
+ ```bash
43
+ pip install thestage
44
+ thestage config set --access-token <YOUR_ACCESS_TOKEN>
45
+ ```
46
 
47
+ ### ElasticModels installation
48
 
49
+ Install TheStage Elastic Models package:
 
50
 
51
+ ```bash
52
+ pip install 'thestage-elastic-models[nvidia]' \
53
+ --extra-index-url https://thestage.jfrog.io/artifactory/api/pypi/pypi-thestage-ai-production/simple
54
+ ```
55
+
56
+ ## Usage example
57
+
58
+ ----
59
 
60
+ Elastic Models provides the same interface as HuggingFace Diffusers. Here is an example of how to use the FLUX.1-dev model:
 
61
 
62
  ```python
63
  import torch
 
71
  mode_name,
72
  torch_dtype=torch.bfloat16,
73
  token=hf_token,
74
+ # 'original' for original model
75
+ # 'S', 'M', 'L', 'XL' for accelerated models
76
  mode='S'
77
  )
78
  pipeline.to(device)
 
84
  output_image.save((prompt.replace(' ', '_') + '.png'))
85
  ```
86
 
 
87
 
88
+ ## Quality Benchmarks
89
 
90
+ ------------
 
 
 
91
 
92
+ We have used PartiPrompts and DrawBench datasets to evaluate the quality of images generated by different sizes of FLUX.1-dev models (S, M, L, XL) compared to the original model. The evaluation metrics include ARNIQA, CLIP IQA, PSNR, SSIM, and VQA Faithfulness.
93
 
94
+ ![Quality Benchmarking](https://cdn.thestage.ai/production/cms_file_upload/1773422498-f1062c24-2904-4d56-b05b-a4d62f629a26/Flux_Dev_PartiPrompts_Evaluation.png)
95
 
96
+ ### Quality Benchmark Results
97
+
98
+ | **Metric/Model Size**| **S**| **M**| **L**| **XL**| **Original** |
99
+ | --- | --- | --- | --- | --- | --- |
100
+ | **ARNIQA (PartiPrompts)** | 64.1 | 63.2 | 61.9 | 66.8 | 66.9 |
101
+ | **ARNIQA (DrawBench)** | 64.3 | 63.5 | 63.6 | 68.2 | 68.5 |
102
+ | **CLIP IQA (PartiPrompts)** | 85.5 | 86.4 | 83.8 | 88.3 | 87.9 |
103
+ | **CLIP IQA (DrawBench)** | 86.4 | 86.5 | 84.5 | 89.5 | 90.0 |
104
+ | **VQA Faithfulness (PartiPrompts)** | 87.5 | 85.5 | 85.5 | 85.5 | 88.6 |
105
+ | **VQA Faithfulness (DrawBench)** | 69.3 | 64.7 | 64.8 | 67.8 | 65.2 |
106
+ | **PSNR (PartiPrompts)** | 30.22 | 30.24 | 30.38 | N/A | N/A |
107
+ | **SSIM (PartiPrompts)** | 0.72 | 0.72 | 0.76 | 1.0 | 1.0 |
108
+
109
+
110
+ ## Datasets
111
+
112
+ -------
113
+
114
+ - **PartiPrompts**: A benchmark dataset created by Google Research, containing 1,632 diverse and challenging prompts that test various aspects of text-to-image generation models. It includes categories such as abstract concepts, complex compositions, properties and attributes, counting and numbers, text rendering, artistic styles, and fine-grained details.
115
+
116
+ - **DrawBench**: A comprehensive benchmark dataset developed by Google Research, containing 200 carefully curated prompts designed to test specific capabilities and challenge areas of diffusion models. It includes categories such as colors, counting, conflicting requirements, DALL-E inspired prompts, detailed descriptions, misspellings, positional relationships, rare words, Reddit user prompts, and text generation.
117
+
118
+ ## Metrics
119
+
120
+ ----------
121
+
122
+ - **ARNIQA**: No-reference image quality assessment metric that predicts perceptual quality without reference images.
123
+ - **CLIP_IQA**: No-reference image quality metric using contrastive learning to assess image quality without references.
124
+ - **VQA Faithfulness**: Metric measuring how accurately generated images represent the text prompts.
125
+ - **PSNR**: Peak Signal-to-Noise Ratio measuring similarity between generated by accelerated model and original model images.
126
+ - **SSIM**: Structural Similarity Index measuring perceptual similarity between generated by accelerated model and original model images.
127
+
128
+
129
+ ## Latency Benchmarks
130
+
131
+ -----
132
+
133
+ We have measured the latency of different sizes of FLUX.1-dev model (S, M, L, XL, original) on various GPUs. The measurements were taken for generating images of size 1024x1024 pixels.
134
 
135
+ ![Latency Benchmarking](https://cdn.thestage.ai/production/cms_file_upload/1773422520-f2e2dedd-f475-4609-8277-b28fe5629623/Flux_Dev_1024x1024_image_generation.png)
 
 
 
136
 
137
+ ### Latency Benchmark Results
138
+
139
+ Latency (in seconds) for generating a 1024x1024 image using different model sizes on various hardware setups.
140
+
141
+ | **GPU/Model Size**| **S**| **M**| **L**| **XL**| **Original** |
142
+ | --- | --- | --- | --- | --- | --- |
143
+ | **H100** | 2.88 | 3.06 | 3.25 | 4.18 | 6.46 |
144
+ | **L40s** | 9.22 | 10.07 | 10.67 | 14.39 | 16 |
145
+ | **B200** | 1.93 | 2.04 | 2.15 | 2.77 | 4.52 |
146
+ | **GeForce RTX 5090** | 5.79 | N/A | N/A | N/A | N/A |
147
+
148
+
149
+ ## Benchmarking Methodology
150
+
151
+ ----
152
+
153
+ The benchmarking was performed on a single GPU with a batch size of 1. Each model was run for 10 iterations, and the average latency was calculated.
154
+
155
+ > **Algorithm summary:**
156
+ > 1. Load the FLUX.1-dev model with the specified size (S, M, L, XL, original).
157
+ > 2. Move the model to the GPU.
158
+ > 3. Prepare a sample prompt for image generation.
159
+ > 4. Run the model for a number of iterations (e.g., 10) and measure the time taken for each iteration. On each iteration:
160
+ > - Synchronize the GPU to flush any previous operations.
161
+ > - Record the start time.
162
+ > - Generate the image using the model.
163
+ > - Synchronize the GPU again.
164
+ > - Record the end time and calculate the latency for that iteration.
165
+ > 5. Calculate the average latency over all iterations.
166
+
167
+ ## Reproduce benchmarking
168
+
169
+ ----
170
+
171
+ ```python
172
+ import torch
173
+ from elastic_models.diffusers import FluxPipeline
174
+
175
+ mode_name = 'black-forest-labs/FLUX.1-dev'
176
+ hf_token = ''
177
+ device = torch.device("cuda")
178
+
179
+ pipeline = FluxPipeline.from_pretrained(
180
+ mode_name,
181
+ torch_dtype=torch.bfloat16,
182
+ token=hf_token,
183
+ # 'original' for original model
184
+ # 'S', 'M', 'L', 'XL' for accelerated models
185
+ mode='S'
186
+ )
187
+ pipeline.to(device)
188
 
189
+ prompt = ["Kitten eating a banana"]
190
+ generate_kwargs={
191
+ "height": 1024,
192
+ "width": 1024,
193
+ "num_inference_steps": 28,
194
+ "cfg_scale": 0.0
195
+ }
196
+
197
+ def evaluate_pipline():
198
+ torch.cuda.synchronize()
199
+ start_time = time.time()
200
+ output = pipeline(
201
+ prompt=prompt,
202
+ **generate_kwargs
203
+ )
204
+ torch.cuda.synchronize()
205
+ end_time = time.time()
206
+
207
+ return end_time - start_time
208
+
209
+ # Warm-up
210
+ for _ in range(5):
211
+ evaluate_pipline()
212
+
213
+ # Benchmarking
214
+ num_runs = 10
215
+ total_time = 0.0
216
+
217
+ for _ in range(num_runs):
218
+ latency = evaluate_pipline()
219
+ total_time += latency
220
+
221
+ average_latency = total_time / num_runs
222
+ print(f"Average Latency over {num_runs} runs: {average_latency} seconds")
223
  ```
224
 
 
225
 
226
+ ## Serving with Docker Image
227
+
228
+ ------------
229
+
230
+ For serving with Nvidia GPUs, we provide ready-to-go Docker containers with OpenAI-compatible API endpoints.
231
+ Using our containers you can set up an inference endpoint on any desired cloud/serverless providers as well as on-premise servers.
232
+ You can also use this container to run inference through TheStage AI platform.
233
+
234
+ ### Prebuilt image from ECR
235
+
236
+ | **GPU** | **Docker image name** |
237
+ | --- | --- |
238
+ | H100, L40s | `public.ecr.aws/i3f7g5s7/thestage/elastic-models:0.1.2-diffusers-nvidia-24.09b` |
239
+ | B200, RTX 5090 | `public.ecr.aws/i3f7g5s7/thestage/elastic-models:0.1.2-diffusers-blackwell-24.09b` |
240
+
241
+ Pull docker image for your Nvidia GPU and start inference container:
242
+
243
+ ```bash
244
+ docker pull <IMAGE_NAME>
245
+ ```
246
+ ```bash
247
+ docker run --rm -ti \
248
+ --name serving_thestage_model \
249
+ -p 8000:80 \
250
+ -e AUTH_TOKEN=<AUTH_TOKEN> \
251
+ -e MODEL_REPO=black-forest-labs/FLUX.1-dev \
252
+ -e MODEL_SIZE=<MODEL_SIZE> \
253
+ -e MODEL_BATCH=<MAX_BATCH_SIZE> \
254
+ -e HUGGINGFACE_ACCESS_TOKEN=<HUGGINGFACE_ACCESS_TOKEN> \
255
+ -e THESTAGE_AUTH_TOKEN=<THESTAGE_ACCESS_TOKEN> \
256
+ -v /mnt/hf_cache:/root/.cache/huggingface \
257
+ <IMAGE_NAME_DEPNDING_ON_YOUR_GPU>
258
+ ```
259
+
260
+ | **Parameter** | **Description** |
261
+ |----------------------------|------------------------------------------------------------------------------------------------------|
262
+ | `<MODEL_SIZE>` | Available: S, M, L, XL. |
263
+ | `<MAX_BATCH_SIZE>` | Maximum batch size to process in parallel. |
264
+ | `<HUGGINGFACE_ACCESS_TOKEN>` | Hugging Face access token. |
265
+ | `<THESTAGE_ACCESS_TOKEN>` | TheStage token generated on the platform (Profile -> Access tokens). |
266
+ | `<AUTH_TOKEN>` | Token for endpoint authentication. You can set it to any random string; it must match the value used by the client. |
267
+ | `<IMAGE_NAME>` | Image name which you have pulled. |
268
+
269
+ ## Invocation
270
+
271
+ ------
272
+
273
+ You can invoke the endpoint using CURL as follows:
274
+
275
+ ```bash
276
+ curl -X POST <http://127.0.0.1:8000/v1/images/generations> \
277
+ -H "Authorization: Bearer <AUTH_TOKEN>" \
278
+ -H "Content-Type: application/json" \
279
+ -H "X-Model-Name: flux-1-dev-<MODEL_SIZE>-bs<MAX_BATCH_SIZE>" \
280
+ -d '{
281
+ "prompt": "Cat eating banana",
282
+ "seed": 12,
283
+ "aspect_ratio": "1:1",
284
+ "guidance_scale": 6.5,
285
+ "num_inference_steps": 4
286
+ }' \
287
+ --output sunset.webp -D -
288
  ```
289
 
290
+ Or using Python requests:
291
 
292
+ ```python
293
+ import requests
294
+ import json
295
+ url = "http://127.0.0.1:8000/v1/images/generations"
296
+ payload = json.dumps({
297
+ "prompt": "sunset",
298
+ "seed": 12,
299
+ "aspect_ratio": "1:1",
300
+ "guidance_scale": 6.5,
301
+ "num_inference_steps": 4
302
+ })
303
+ headers = {
304
+ 'Authorization: ''Bearer <AUTH_TOKEN>'',
305
+ 'Content-Type': 'application/json',
306
+ 'X-Model-Name': 'flux-1-dev-<MODEL_SIZE>-bs<MAX_BATCH_SIZE>'
307
+ }
308
+ response = requests.request("POST", url, headers=headers, data=payload)
309
+ with open("sunset.webp", "wb") as f:
310
+ f.write(response.content)
311
+ ```
312
+
313
+ Or using OpenAI python client:
314
+
315
+ ```python
316
+ import os, base64, pathlib, json
317
+ from openai import OpenAI
318
+
319
+ BASE_URL = "http://<your_ip>/v1"
320
+ API_KEY = ""
321
+ MODEL = "flux-1-dev-<MODEL_SIZE>-bs<MAX_BATCH_SIZE>"
322
+
323
+ client = OpenAI(
324
+ api_key=API_KEY,
325
+ base_url=BASE_URL,
326
+ default_headers={"X-Model-Name": MODEL}
327
+ )
328
+
329
+ response = client.with_raw_response.images.generate(
330
+ model=MODEL,
331
+ prompt="Cat eating banana",
332
+ n=1,
333
+ extra_body={
334
+ "seed": 111,
335
+ "aspect_ratio": "1:1",
336
+ "guidance_scale": 3.5,
337
+ "num_inference_steps": 4
338
+ },
339
+ )
340
+
341
+ with open("thestage_image.webp", "wb") as f:
342
+ f.write(response.content)
343
+ ```
344
+
345
+ ## Endpoint Parameters
346
+
347
+ -------------
348
+
349
+ ### Method
350
+
351
+ > **POST** `/v1/images/generations`
352
 
353
+ ### Header Parameters
354
 
355
+ > `Authorization`: `string`
356
+ >
357
+ > Bearer token for authentication. Should match the `AUTH_TOKEN` set during container startup.
358
 
359
+ > `Content-Type`: `string`
360
+ >
361
+ > Must be set to `application/json`.
362
 
363
+ > `X-Model-Name`: `string`
364
+ >
365
+ > Specifies the model to use for generation. Format: `flux-1-dev-<size>-bs<batch_size>`, where `<size>` is one of `S`, `M`, `L`, `XL`, `original` and `<batch_size>` is the maximum batch size configured during container startup.
 
 
 
366
 
367
+ ### Input Body
368
 
369
+ > `prompt` : `string`
370
+ >
371
+ > The text prompt to generate an image for.
372
 
373
+ > `seed`: `int32`
374
+ >
375
+ > Random seed for generation.
376
+
377
+ > `num_inference_steps`: `int32`
378
+ >
379
+ > Number of diffusion steps to use for generation. Higher values yield better quality but take longer. Default is 28
380
+
381
+ > `aspect_ratio`: `string`
382
+ >
383
+ > Aspect ratio of the generated image. Supported values:
384
+ > ```
385
+ > "1:1": (1024, 1024),
386
+ > "16:9": (1280, 736),
387
+ > "21:9": (1280, 544),
388
+ > "3:2": (1248, 832),
389
+ > "2:3": (832, 1248),
390
+ > "4:3": (1184, 896),
391
+ > "3:4": (896, 1184),
392
+ > "5:4": (1152, 928),
393
+ > "4:5": (928, 1152),
394
+ > "9:16": (736, 1280),
395
+ > "9:21": (544, 1280)
396
+ > ```
397
+
398
+ > `guidance_scale`: float32
399
+ >
400
+ > Guidance scale for classifier-free guidance. Higher values increase adherence to the prompt.
401
+
402
+ ## Deploy on Modal
403
+
404
+ -----------------------
405
+
406
+ For more details please use the tutorial [Modal deployment](https://docs.thestage.ai/tutorials/source/modal_thestage.html)
407
+
408
+ ### Clone modal serving code
409
+
410
+ ```shell
411
+ git clone https://github.com/TheStageAI/ElasticModels.git
412
+ cd ElasticModels/examples/modal
413
+ ```
414
+
415
+ ### Configuration of environment variables
416
+
417
+ Set your environment variables in `modal_serving.py`:
418
+
419
+ ```python
420
+ # modal_serving.py
421
+
422
+ ENVS = {
423
+ "MODEL_REPO": "black-forest-labs/FLUX.1-dev",
424
+ "MODEL_BATCH": "4",
425
+ "THESTAGE_AUTH_TOKEN": "",
426
+ "HUGGINGFACE_ACCESS_TOKEN": "",
427
+ "PORT": "80",
428
+ "PORT_HEALTH": "80",
429
+ "HF_HOME": "/cache/huggingface",
430
+ }
431
+ ```
432
+
433
+ ### Configuration of GPUs
434
+
435
+ Set your desired GPU type and autoscaling setup. variables in `modal_serving.py`:
436
+
437
+ ```python
438
+ # modal_serving.py
439
+
440
+ @app.function(
441
+ image=image,
442
+ gpu="B200",
443
+ min_containers=8,
444
+ max_containers=8,
445
+ timeout=10000,
446
+ ephemeral_disk=600 * 1024,
447
+ volumes={"/opt/project/.cache": HF_CACHE},
448
+ startup_timeout=60*20
449
+ )
450
+ @modal.web_server(
451
+ 80,
452
+ label="black-forest-labs/FLUX.1-dev-test",
453
+ startup_timeout=60*20
454
+ )
455
+ def serve():
456
+ pass
457
+ ```
458
+
459
+ ### Run serving
460
+
461
+ ```shell
462
+ modal serve modal_serving.py
463
+ ```
464
 
465
 
466
  ## Links
467
 
468
  * __Platform__: [app.thestage.ai](https://app.thestage.ai)
 
469
  * __Subscribe for updates__: [TheStageAI X](https://x.com/TheStageAI)
470
+ * __Contact email__: contact@thestage.ai