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ENGINEERING BLOG

Benchmarks, builds
& battle scars

Real benchmarks, real architecture, no marketing fluff.

Guides 8 min

Nano Banana product photography: why it fails on shoes (2026)

Nano Banana product photography looks flawless until you zoom in. Here is the reference-tagging trick, the failure that ruins shots, and the fix at scale.

video-sourcenano banana product photographyai product photography
Ricardo Ghekiere
Ricardo Ghekiere
Jun 18, 2026
Guides 10 min

ComfyUI outpainting: the workflow that hides the seam (2026)

ComfyUI outpainting adds new pixels to an image while matching the original. Build the node graph that hides the seam, then run it as a production API.

video-sourcecomfyui outpaintingoutpainting workflow
Thibaut Hennau
Thibaut Hennau
Jun 18, 2026
Guides 11 min

Flux 2 in ComfyUI: install, workflow, and API (2026)

Flux 2 in ComfyUI: the three files, folder paths, the reference-image workflow, real 5090 timings, the active-parameter trick, and the hosted API path with no download.

video-sourceflux 2 comfyuiflux 2
Thibaut Hennau
Thibaut Hennau
Jun 18, 2026
Guides 10 min

ComfyUI Flux ControlNet: depth and canny control in 2026

A ComfyUI Flux ControlNet workflow using the official Flux Tools depth and canny models, plus how to ship that structured control as an API.

video-sourcecomfyui flux controlnetflux controlnet workflow
Thibaut Hennau
Thibaut Hennau
Jun 17, 2026
Guides 10 min

ComfyUI Flux install: Dev vs Schnell speed guide (2026)

ComfyUI Flux install, end to end: Dev vs Schnell, the license trap, VRAM and speed numbers, then the hosted Flux path with no multi-GB downloads.

video-sourcecomfyui flux installflux dev
Thibaut Hennau
Thibaut Hennau
Jun 17, 2026
Newsletter

Stay in the loop

Benchmarks, architecture deep-dives, and changelog updates. No spam.

Guides 9 min

ComfyUI sketch to image: the 2026 workflow

ComfyUI sketch to image turns a scribble into a finished illustration with Flux or SDXL ControlNet. Build the workflow locally, then run it as an API.

video-sourcecomfyui sketch to imagesketch to image
Thibaut Hennau
Thibaut Hennau
Jun 16, 2026
Guides 10 min

ComfyUI IPAdapter: style and identity transfer in 2026

ComfyUI IPAdapter copies style and identity from a reference image. Build the v2 workflow node by node, then run reference-image pipelines as a hosted API.

video-sourcecomfyui ipadapteripadapter v2
Thibaut Hennau
Thibaut Hennau
Jun 16, 2026
Guides 10 min

ComfyUI advanced tutorial: conditioning and sampling (2026)

ComfyUI advanced tutorial on noise, ControlNet timestepping, and tiled upscaling, plus how that hand-tuned control survives once it runs as a production API.

video-sourcecomfyui advanced tutorialcontrolnet
Thibaut Hennau
Thibaut Hennau
Jun 15, 2026
Guides 10 min

ComfyUI style transfer with IPAdapter: the 2026 guide

ComfyUI style transfer copies the look of a reference image onto any new subject. Build the IPAdapter workflow, then run it as a hosted style endpoint.

video-sourcecomfyui style transferipadapter
Thibaut Hennau
Thibaut Hennau
Jun 15, 2026
Guides 12 min

How to use ComfyUI: a beginner's guide for 2026

How to use ComfyUI from a blank canvas: the interface, what nodes do, your first text-to-image workflow, and when to move from local to cloud and API.

video-sourcehow to use comfyuicomfyui beginner
Thibaut Hennau
Thibaut Hennau
Jun 14, 2026
Guides 9 min

ComfyUI Flux Kontext: inpainting and editing in 2026

ComfyUI Flux Kontext handles prompt-based editing, inpainting, and character consistency. Build the workflow locally, then run it as an API in production.

video-sourcecomfyui flux kontextflux kontext
Thibaut Hennau
Thibaut Hennau
Jun 13, 2026
Guides 11 min

ComfyUI Qwen image edit: workflows and API guide for 2026

ComfyUI Qwen image edit walkthrough: build the edit, combine, inpaint, and try-on workflows, then call Qwen-Image-Edit as an API instead of self-hosting weights.

video-sourcecomfyui qwen image editqwen
Thibaut Hennau
Thibaut Hennau
Jun 13, 2026
Guides 11 min

ComfyUI WAN 2.2 image to video on 8GB VRAM (2026 guide)

ComfyUI WAN 2.2 image to video runs on 8GB VRAM with GGUF quants and Lightx2v. The honest local setup, plus the cost and speed math of offloading to an API.

video-sourcecomfyui wan 2.2wan 2.2
Thibaut Hennau
Thibaut Hennau
Jun 12, 2026
Tutorials 8 min

What you can build on Runflow's API: an AI pet portrait generator (Maison Zola)

A behind-the-scenes build of Maison Zola, an AI pet portrait generator on Runflow, showing the building blocks you'd reuse for any AI image generation API project.

video-sourceai image generation apiai pet portrait generator
Ricardo Ghekiere
Ricardo Ghekiere
Jun 12, 2026
Tutorials 9 min

How to run the Nano Banana API in ComfyUI, then take it to production

Pixaroma's ComfyUI API nodes run the Nano Banana API, Seedream 4, and GPT image with no local GPU. Here's that method, plus how to call the same models as a production API on Runflow.

video-sourcenano banana apicomfyui api
Ricardo Ghekiere
Ricardo Ghekiere
Jun 12, 2026
Guides 5 min

Photorealistic 3D product rendering at scale: from 3D files to product images

How we built a photorealistic 3D product rendering workflow that turns a 3D file and its texture maps into product images at scale, then scores every render for defects.

video-sourcephotorealistic 3d product rendering3d rendering
Ricardo Ghekiere
Ricardo Ghekiere
Jun 12, 2026
Guides 9 min

ComfyUI consistent character with FLUX: the 2026 workflow

A ComfyUI consistent character workflow with FLUX: build a character sheet, train a LoRA, then turn the whole thing into a repeatable API endpoint.

video-sourcecomfyui consistent characterflux
Thibaut Hennau
Thibaut Hennau
Jun 11, 2026
Guides 9 min

Build your own AI product photography generator for ecommerce with two API keys

Deploy a modular AI product photography generator for ecommerce that turns one product photo into a full lifestyle and social media pack, running on open Runflow workflows at ~$0.26 per pack.

video-sourceai product image generator for ecommerceecommerce
Thibaut Hennau
Thibaut Hennau
Jun 4, 2026
Best Of 9 min

The 7 best image filter APIs in 2026 (tested for production)

A developer's comparison of the top image filter APIs in 2026, covering CDN-based transforms, AI prompt editing, and professional-grade effects for every production use case.

image filter apiphoto filter apiai image filter
Thibaut Hennau
Thibaut Hennau
Jun 2, 2026
Guides 22 min

10 Best Use Cases of AI Image Workflows in 2026

10 production AI image workflows behind real product, marketing, and content pipelines in 2026. The workflow shape, gotchas, and infra notes for each.

AI workflowsComfyUIimage generation
Miguel Rasero
Miguel Rasero
May 27, 2026
Guides 18 min

The Right Resize Image API for Ecommerce, Ads, AI Pipelines, and Editorial (2026)

How to pick a resize image API in 2026, by use case. Ecommerce, ads, AI pipelines, editorial, with code samples and an honest comparison of 7 options.

resize image apiimage resize apiaspect ratio conversion
Miguel Rasero
Miguel Rasero
May 27, 2026
Benchmarks

3 failure modes that kill production AI product isolation (tested on Nano Banana Pro + GPT Image 2)

We ran the same product-isolation task through Runflow, Nano Banana Pro, and GPT Image 2 on real e-commerce inputs. Three repeatable failure modes came out of the generalists: color drift, object substitution, and mask leakage. Each one breaks a different stage of an automated catalog pipeline.

product isolationnano banana progpt image 2
Thibaut Hennau
Thibaut Hennau
May 27, 2026
Guides 28 min

20 ComfyUI Workflows You Didn't Know You Needed in 2026 (Production Ready)

20 production-ready ComfyUI workflows with JSON internals, version pinning, and the infra patterns that keep them running at scale. The complete 2026 guide.

ComfyUIworkflowsproduction infrastructure
Miguel Rasero
Miguel Rasero
May 24, 2026
Guides 14 min

How to Fix AI-Mangled Brand Logos on Garment Images (2026 Guide)

AI image generators get brand logos wrong on garments. Here's why it happens, why most fixes fail, and the right way to put a real brand logo on AI catalog images.

logo fixai fashionbrand logos
Ricardo Ghekiere
Ricardo Ghekiere
May 22, 2026
Best Of 11

The 5 best ComfyUI cloud and online platforms in 2026 (honest comparison)

Runflow Deploy, Comfy Cloud, RunComfy, RunPod, ComfyICU. Real pricing, real use case fit, honest verdicts on which one fits your workflow.

Miguel Rasero
Miguel Rasero
May 20, 2026
Benchmarks

3 failure modes that kill production AI inpainting (tested on Nano Banana Pro + GPT Image 2)

We ran three test images through Runflow's specialist object-removal endpoint, Nano Banana Pro, and GPT Image 2. Two of them broke in three repeatable ways. Here is what we saw.

nano banana proai inpaintingobject removal
Thibaut Hennau
Thibaut Hennau
May 19, 2026
Guides

Building an AI Image Generator API: 14 Things That Broke When We Built Our Own AI Studio

Honest field notes from building Runflow's AI Studio: every contract drift, every silent 422, every 'wait, why is the mask all zeros'. What broke, what got fixed, what you'd actually have to build yourself.

Ricardo Ghekiere
Ricardo Ghekiere
May 12, 2026
Guides

I built an AI headshot tool in 4 hours with Claude Code. Here's the full playbook.

Step-by-step playbook for building an AI headshot SaaS in a weekend with Claude Code and Runflow. Real prompts, real API shapes, real margins.

Apoorv Sharma
Apoorv Sharma
May 8, 2026
Guides 18

How ecommerce brands automate product photography for Amazon, Shopify, and Etsy with AI (2026)

How ecommerce brands automate product photography for Amazon, Shopify, and Etsy with AI. Real specs, real APIs, real cost math. Pipeline playbook.

Apoorv Sharma
Apoorv Sharma
May 8, 2026
Best Of

Top 6 background remover APIs in 2026 (tested for production)

Six background remover APIs compared honestly. Pricing math, edge cases, integration patterns, and which one fits your use case. Tested for production.

Apoorv Sharma
Apoorv Sharma
May 7, 2026
Opinion 19

Most 'Free AI Image Generation API' Lists Are Lying to You. Here's What's Actually Free.

Most 'free AI image generation API' articles are misleading. Here's the honest breakdown of what's actually free, what's not, and what to budget if you're shipping.

Apoorv Sharma
Apoorv Sharma
Apr 30, 2026
Best Of

The 4 best AI headshot generator APIs, tested with real integrations (2026)

We tested four AI headshot generator APIs end to end: BetterPic, LightX, Aragon AI, and HeadshotPro. Real integrations, real costs, and the QA layer that makes the top result work.

Apoorv Sharma
Apoorv Sharma
Apr 29, 2026
Benchmarks 15

Nano Banana API: Live Reliability Benchmarks for Top 6 Providers (2026)

Live reliability benchmarks for the top 6 Nano Banana API providers. Real success rates, P50/P95 latency, error breakdowns, and a decision framework. Updated continuously.

nano banana apinano banana 2 apinano banana pro api
Miguel Rasero
Miguel Rasero
Apr 28, 2026
Engineering

Every ComfyUI API Endpoint, Documented (2026)

Every ComfyUI API endpoint documented: REST and WebSocket routes, payload shapes, responses, error handling, and working examples. The complete 2026 reference.

comfyuiapireference
Miguel Rasero
Miguel Rasero
Apr 25, 2026
Guides 22 min

ComfyUI Deploy: Choosing Between Self-Host, Serverless, and Managed (2026)

A vendor-neutral guide to deploying ComfyUI. The five real paths - self-hosted, serverless, managed platforms, workflow-as-a-service, local - compared with cost math at 1K, 10K, and 100K images per month, plus the production hardening that applies regardless of path.

comfyuideployinfrastructure
Miguel Rasero
Miguel Rasero
Apr 20, 2026
Engineering 18 min

How We Cut GPU Costs 70% — The Architecture Behind Runflow

From $90K/mo to $27K/mo. The multi-cloud orchestration system that powers our inference platform, born from running 100K+ AI jobs at BetterPic.

70%cost reduction
ArchitectureGPUInfrastructure
Miguel P.
Miguel P.
Feb 20, 2026
Benchmarks 9 min
93

Background Removal Showdown: RMBG-2.0 vs SAM 2 vs Proprietary APIs

Systematic benchmark across 5,000 product images. Open source is now within 2% of closed-source quality, at a fraction of the compute cost.

2%quality gap remaining
BenchmarkBackground Removal
Ziad
Ziad
Feb 17, 2026
Guides 5 min

Migrate from fal.ai to Runflow in 10 Minutes

Step-by-step guide to switching your image inference pipeline. Same API patterns, better reliability and pricing, per-niche benchmarks included.

10 minmigration time
GuideMigrationAPI
Tibor
Tibor
Feb 14, 2026
Changelog 3 min

v0.4.0 — Sentinel Evaluation Engine, New Models, Workflow Pipelines

Automated quality scoring is live. Plus: Flux.2 Klein support, multi-step workflow builder, and 3 new benchmark categories.

v0.4latest release
ChangelogSentinelv0.4
Miguel Rasero
Miguel Rasero
Feb 10, 2026
Engineering 14 min

Building Sentinel: Our Automated Model Evaluation System

How we score model outputs across FID, CLIP, and custom metrics, automatically, per-niche, at scale. The engine behind our benchmark tables.

3metric dimensions
SentinelEvaluationML
Ziad
Ziad
Feb 6, 2026