
Closed
Posted
Paid on delivery
We have a trained, working YOLO-based object detection + classification model (Python) that detects and grades apples in tray images as Grade A / Grade B • Need it wrapped into a callable REST API (FastAPI or Flask preferred) that accepts an image and returns grading results • Must be optimized for GPU inference (RunPod, RTX A5000) — not CPU-only • Model loading must be efficient (loaded once, kept warm — not reloaded per request) • Needs to handle real-world phone-camera photos, not just clean training images — proper image preprocessing/normalization required • Robust error handling: bad images, no apples detected, corrupted uploads, timeouts • Must support multiple concurrent requests without performance degradation (10+ concurrent users expected) • Deployment included — API should be live and testable, not just handed over as code
Project ID: 40670318
42 proposals
Remote project
Active 1 day ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
42 freelancers are bidding on average ₹7,538 INR for this job

Combining wide-ranging experience in AI development, infrastructure-building, and stack integration, I am well-suited to tackle your API project head-on. Whether it's automating complex workflows or creating scalable systems that genuinely function in production, I deliver robust solutions. À la previous projects of building voice agents for inbound and outbound propisciency on Vapi and Retell AI integrated with CRMs and liasing real - time scheduling with n8n , Zapier for zero manual handoffs, this complies with your need of an efficient system the classifies images promptly. Moreover, my firm grasp on Python is vital for seamlessly transitioning your YOLO-based object detection + classification model into a FastAPI or Flask preferred REST API. My expertise extends even further - to make sure your deployed API runs at optimal efficiency on the RTX A5000 GPU inference capabilities necessitated by your project. Ultimately, I bring not just proficiency in API and Python but also comprehensive knowledge across multiple layers of tech stack — Dockerizing using AWS or any other deployment platform; meticulous data handling with PostgreSQL, MySQL etc., which will allow me to skillfully navigate the intricate requirements of deploying a live and testable API. With me at the helm, you can be assured each element from image
₹1,500 INR in 4 days
4.5
4.5

Hi, I can wrap your existing YOLO apple detection/grading model into a production-ready REST API using FastAPI or Flask, optimized for GPU inference on RunPod / RTX A5000. My approach will be to first review your trained model, input/output format, class labels, preprocessing needs, and deployment environment. Then I’ll build an API that loads the model once at startup, keeps it warm, handles image uploads, runs GPU inference, and returns clean grading results. I’m comfortable with: * Python API development * FastAPI / Flask * YOLO model deployment * GPU inference optimization * RunPod/Linux deployment * Image preprocessing * Concurrent request handling * Error handling and logging * Docker-based deployment Deliverables: * Live REST API * Image upload endpoint * Apple detection and Grade A/B response * Model loaded once, not per request * Phone-photo preprocessing * Bad/corrupt image handling * No-apple-detected response * Timeout/error handling * Concurrent request support * Deployment and test instructions I’ll focus on making the API fast, stable, GPU-ready, and live/testable, not just delivering code. Best regards Ankit
₹5,000 INR in 1 day
3.6
3.6

Hello, I have 9 years of experience in Python and API Development. I specialize in creating efficient REST APIs using FastAPI and Flask. I have carefully reviewed your project requirements for developing an API for the Apple Grading AI. I understand the need for optimizing the model for GPU inference, efficient model loading, handling real-world images, and robust error handling. I am confident in providing a professional solution that meets all your project specifications. I would like to discuss your project further in chat to ensure that the final deliverable aligns perfectly with your expectations. Best regards
₹7,000 INR in 2 days
3.2
3.2

Your apple photos should come back graded and live to test, not handed over as files. You already have a working grader. You need a live service that takes a phone picture, returns Grade A or Grade B, stays ready between shots, and holds up when ten people send photos at once. I can start right now. In 24-48 hours you get a live sample of your exact flow so you can send messy phone photos and see the grades yourself. Empty trays, bad photos, and broken uploads get a clear message, not a crash. Share the model files so I can put the first live sample up today?
₹8,000 INR in 3 days
2.6
2.6

Hi, The model is the part you have already solved. What decides whether this feels fast or slow is how the service holds the model in memory and how it queues requests, because loading it per call or letting ten uploads fight over one GPU is where response times fall apart. I would build that part first and fit the rest around it. What you would get: - A FastAPI service that takes an image upload and returns the grade per apple - The model loaded once at startup and kept ready, so no warm-up cost per request - Photos from phones resized and normalised before they reach the model, so real pictures behave like your training ones - Clear answers instead of crashes for blurry files, no apples found, broken uploads and slow requests - Ten or more people using it at once without the response time climbing, load tested before handover - Deployed and running on your RunPod A5000, with a live URL you can test INR 12,500, delivered in 10 days. One question: will you give me access to a RunPod account for the deploy, or should I build and test on mine and hand over the container? Would enjoy getting the concurrency side of this genuinely right. Thanks, Bhagya
₹12,500 INR in 10 days
2.4
2.4

I can wrap your YOLO model into a FastAPI service and deploy it to your RunPod instance with persistent warm-loading for the weights. I will implement robust preprocessing to handle the variance in phone-camera image quality. My approach focuses on managing the GPU memory efficiently to support your target of 10+ concurrent users. I will use Gunicorn with Uvicorn workers to ensure the API stays responsive under load. A few questions to better understand the scope: Q1 - What is the current format of your YOLO model weights, and are you using ONNX or TensorRT for the inference runtime? Q2 - Should the API perform image resizing and color normalization internally, or do you have a specific preprocessing pipeline already defined? Q3 - How do you want to handle the storage of processed images and logs for the grading results? I am ready to start on the API structure and deployment configuration immediately.
₹3,150 INR in 4 days
1.6
1.6

Good, tight brief — and to be clear, I'm not touching your model. It's trained and working; my job is a fast, reliable serving layer around it. Three things decide whether this actually holds up in production, and they're where cheap wraps fail: 1. One process owns the GPU. Load the model once at startup and keep it warm; do NOT run naive multi-worker gunicorn where every worker loads YOLO and blows up VRAM on one A5000. Serve async (FastAPI) with a single inference worker / request queue in front of the GPU — parallelise the I/O, serialise or micro-batch at the GPU. That's how you get 10+ concurrent without degradation on one card. 2. Real phone photos aren't training images. Auto-orient from EXIF (phones lie about rotation), resize/letterbox to the model's input, normalize consistently — skip this and grading accuracy quietly drops on real uploads even though the model is fine. 3. An honest error contract: clean structured JSON for every failure you listed (400 bad image, 422 no apples detected, 413 too large, 504 timeout), never a 500 stack trace. I'll define the response schema up front. Deployment included: Dockerized, running on RunPod with a health check and a live endpoint you can test — not just code handed over. INR 10,000, 3 days. How is the model delivered (weights + inference script)? Target throughput (req/s or just the 10 concurrent)? And is the RunPod account yours, or do I provision it?
₹10,000 INR in 3 days
1.4
1.4

I'll build a production-ready FastAPI service that loads your YOLO model once into GPU memory and keeps it warm for sub-100ms inference on concurrent requests. The API will accept image uploads, handle preprocessing for real-world phone photos (normalization, resizing, format conversion), and return structured JSON with Grade A/B classifications plus confidence scores. I'll implement comprehensive error handling for corrupted uploads, missing detections, and timeout scenarios, plus request queuing to manage 10+ concurrent users smoothly. Deployment includes containerization with Docker, setup on RunPod with proper GPU allocation, and live testing endpoints so you can validate immediately. Full source code and deployment documentation included.
₹1,515 INR in 4 days
0.0
0.0

I will wrap the existing trained YOLO apple detection and grading model into a high-performance REST API using **FastAPI**, optimized specifically for **GPU inference on RunPod with an RTX A5000**. The model will be loaded once when the API starts and kept in GPU memory to ensure fast response times without reloading it for every request. The API will accept image uploads, apply appropriate preprocessing and normalization for real-world phone-camera images, run YOLO inference, and return structured results including detected apples and their **Grade A / Grade B** classifications. I will implement robust error handling for invalid or corrupted images, unsupported uploads, no detections, inference failures, and request timeouts. The API will also be designed to handle **10+ concurrent users**, using efficient request handling and GPU-aware inference optimization to maintain stable performance. Finally, I will deploy the complete API on RunPod, configure the GPU environment and dependencies, and provide a **live, testable endpoint** with clear API documentation so the system is ready for real-world use rather than being delivered as code only.
₹2,000 INR in 7 days
0.0
0.0

Hi, I can wrap your existing YOLO apple grading model into a production-ready FastAPI REST service without changing the trained model itself. I’ll implement efficient image preprocessing, GPU inference on the RTX A5000, persistent warm model loading, structured grading responses, and robust handling for invalid images, corrupted uploads, no detections, and inference timeouts. I’ll also design the inference layer for concurrent requests so the API can handle 10+ users efficiently without repeatedly loading the model. After development, I’ll deploy it on RunPod and provide a live endpoint with API documentation and testing examples. Could you share the current YOLO model files, Python inference code, and the expected JSON response format? Also, is the RunPod RTX A5000 environment already available?
₹7,000 INR in 7 days
0.0
0.0

I noticed you are looking for an expert to handle end-to-end data processing, predictive modeling, and business intelligence reporting. I specialize in building robust Machine Learning/Deep Learning pipelines and translating complex data outputs into clear, decision-ready Power BI dashboards.
₹7,000 INR in 5 days
0.0
0.0

Hi, You have a working YOLO model. I'll turn it into a live API that handles real world photos. What you'll get: FastAPI endpoint. Upload image, get grading results GPU optimized (loads once, stays warm) Handles phone camera photos (not just clean training images) 10+ concurrent users with no slowdown Error handling for bad images, no apples detected, timeouts Deployed and testable on RunPod Let's get your model live.
₹6,000 INR in 5 days
0.0
0.0

Your model is already trained, so I would treat this as an inference-service and deployment job, not an ML research project. Deliverable-first plan: 1. Wrap the existing YOLO detector/classifier in FastAPI with a versioned image-grading endpoint and a documented JSON response for Grade A, Grade B, counts, confidence, and bounding boxes. 2. Load the model once during application startup, keep it warm on the RTX A5000, and protect GPU access with a bounded async queue so concurrent requests do not trigger duplicate model loads or uncontrolled VRAM use. 3. Add phone-image preprocessing with EXIF orientation correction, colour normalization, safe resizing/letterboxing, and configurable confidence/NMS thresholds. 4. Validate MIME type and decoded image content; return clear errors for corrupt files, unsupported formats, oversized uploads, no detections, inference failures, and timeouts. 5. Containerize and deploy to RunPod, then run repeatable functional and 10-user concurrency tests against the live endpoint. 6. Hand over source, Docker/config files, OpenAPI docs, benchmark results, health/readiness endpoints, and operating notes. Milestones: - API contract + local GPU inference: 2 days - robustness, preprocessing, and concurrency: 2 days - RunPod deployment, load test, and handover: 2 days Bid: ₹12,000 in 6 days. I can integrate and deploy the supplied working model. Final throughput depends on its architecture, input size, and weights; I will measure and report actual latency/concurrency rather than promise an unsupported requests-per-second figure. RunPod usage is paid through your account and is not included in this bid.
₹12,000 INR in 6 days
0.0
0.0

Your model is already trained, so this job is the serving layer, not the ML. The hard part is keeping it fast on real phone photos while several people call it at once. How I would build it: the model is loaded once at process start and kept warm on the GPU, never per request, with a warm-up inference at boot so the first real call is not the slow one. In front of it an async endpoint feeding a bounded GPU worker queue, so 10+ callers are served in order instead of fighting over VRAM, with batching where it helps on the A5000. Preprocessing handles phone-camera reality: EXIF orientation, letterbox resize to the model input, colour normalisation, so a handheld tray photo grades the same as a clean training image. Failure paths are explicit, not left to chance: corrupted or oversized upload, unsupported format, no apples detected (a valid empty result, not a 500), inference timeout. Each returns a typed JSON error with a request id you can trace in the logs. Delivered running on RunPod, not as a zip: Dockerfile on a CUDA base, health endpoint, and I test it against your own sample photos before hand-off. A concrete first step: send me the weights and 5 to 10 real tray photos, and I will come back with a live endpoint that grades those exact images, before we commit to anything further. Background: one completed project on this account, rated 5 out of 5, delivered on time and on budget. Also 15 merged pull requests into third-party open-source projects, mostly a 187-star Go security tool, each reviewed and accepted by the maintainers. Deploying Python services and keeping them running on Linux servers is routine work for me. 9,500 INR, 7 days. Petro Pankov, BotCraft Group
₹9,500 INR in 7 days
0.0
0.0

We recently helped a client achieve a seamless integration of a machine learning model into a robust API — and judging by your post, it sounds like we could do the same for you. We've worked on API development projects for AI models and would love to bring that experience to your project. From your post, it sounds like you're looking for something efficient and optimized for GPU inference, specifically around wrapping your YOLO-based model into a callable REST API. We specialize in FastAPI and Flask, ensuring that the model loading is efficient and capable of handling real-world images with robust error handling. I would love to help you with your project! The worst that can happen is you walk away with free consultation. Regards, Shannonkb21.
₹6,250 INR in 14 days
0.0
0.0

Hi, I can build and deploy your production-ready YOLO Apple Grading REST API on RunPod (RTX A5000) with optimized GPU inference and high concurrency support. Here is how I will deliver your project: 1. Fast & Scalable API: Built using FastAPI with lifespan warm-loading to keep the YOLO model loaded once in VRAM (RTX A5000), eliminating reload latencies for concurrent requests. 2. Robust Preprocessing: OpenCV pipeline to automatically fix smartphone camera EXIF rotations, normalize lighting/contrast (CLAHE), and handle raw user uploads safely. 3. Strict Error Handling: Gracefully handles corrupted files, missing detections (0 apples found), and unexpected payloads with proper HTTP status codes and detailed JSON responses. 4. Production-Ready Deployment: I will configure Gunicorn/Uvicorn workers, setup the RunPod GPU environment, optimize CUDA/TensorRT execution, and deliver a live, fully tested API endpoint ready for integration. As a System & Automation Specialist with extensive experience in Python scripting and Linux server management, I ensure complete end-to-end execution. You can check my active live Telegram bot project here for a reference of my backend automation skills: @BALESTOREBOT I am ready to start immediately. Let's discuss your custom model details in chat!
₹7,000 INR in 7 days
0.0
0.0

Hello, I’m bharghav, and I bring 10 years of experience in Matching Job Skills, particularly in Java, Python, Linux, and Software Architecture, which aligns perfectly with your API Development project. I understand that you need a REST API to deploy your YOLO-based object detection model for grading apples, optimized for GPU inference. I will ensure efficient model loading, implement robust error handling, and enable concurrent requests while maintaining performance. Additionally, I will focus on real-world image preprocessing and deploy the API so it's ready for immediate use. Let’s start a chat to discuss your vision further! Best regards, bhargav922002
₹8,750 INR in 3 days
0.0
0.0

As a seasoned, full-stack developer with over a decade of experience, I am confident in my ability to deliver a top-tier solution for your Apple Grading AI API needs. I have developed numerous REST APIs throughout my career, including SaaS platforms and CRM systems which bear similarities to your project requirements. Moreover, my expertise in PHP paired with frameworks like Laravel and CodeIgniter perfectly aligns with the Flask and FastAPI options proposed for your project. Your project's focus on image preprocessing/normalization and robust error handling for real-world phone-camera photos resonates deeply with the challenges I've tackled before. Considering the large number of concurrent requests expected, I can ensure that my code design will prioritize performance optimization without compromising efficiency on GPU-inference tasks using RunPod or RTX A5000. My experience in cloud/server deployment together with database management skills can help me deploy the system effectively alongside the decisive API development.
₹7,000 INR in 7 days
0.0
0.0

As a seasoned full-stack developer with over 5 years of experience, specializing in API development and software architecture, I am confident that my skills are a perfect match for your project. My strong background in both Java and Python will be particularly valuable as we work to wrap your trained apple grading model into a callable REST API. In line with your project's requirements, I have extensive knowledge in FastAPI and Flask, technologies perfectly suited for the task at hand. Furthermore, my proficiency in GPU inference optimization will ensure your application runs smoothly and efficiently with optimal performance on high-end hardware such as the RTX A5000. I understand the complexity of real-world application scenarios and the importance of robust error handling. My approach is to anticipate potential issues before they occur by implementing proper image preprocessing and normalization techniques to handle different types of photos from phone cameras. My aim is to provide you not just with a functional system but one that is resilient, secure, and scalable enough to handle multiple concurrent requests without any degradation of performance. Working together, we can deploy an impactful Apple Grading AI API that is not just live and testable but also highly reliable and user-friendly. Let's discuss how we can turn this vision into a reality.
₹7,000 INR in 7 days
0.0
0.0

Hi, I can turn your existing YOLO apple grading model into a **production-ready GPU inference API**, not just a basic wrapper. I’ll build it with **FastAPI**, load the YOLO model once and keep it warm on the **RunPod RTX A5000**, with proper image preprocessing for real-world phone-camera photos. I’ll also handle invalid/corrupted uploads, no-detection cases, timeouts, and clean API responses. For the 10+ concurrent users requirement, I’ll design the inference flow carefully to avoid unnecessary model reloads and GPU memory waste, and test the API under concurrent requests. I’ll also **Dockerize and deploy the complete API on RunPod**, provide a live testable endpoint, and verify it using real image requests. I have hands-on experience with **Python, AI/ML, YOLO-style inference workflows, FastAPI/Streamlit, and deployment**, and I can focus specifically on making your existing model reliable and production-ready. Let’s get it running live.
₹2,000 INR in 2 days
0.0
0.0

Srinagar, India
Member since Aug 25, 2026
₹12500-37500 INR
₹600-1500 INR
$3000-5000 USD
₹400-750 INR / hour
₹750-1250 INR / hour
₹2000-5000 INR
₹1500-12500 INR
₹600-1500 INR
$10-30 USD
$250-750 USD
$750-1500 USD
₹12500-37500 INR
₹1500-12500 INR
₹12500-37500 INR
$30-250 USD
₹600-2000 INR
$15-25 USD / hour
$30-250 SGD
£250-750 GBP
$15-25 USD / hour