Lumis Photo
AI critique that actually looks at your photos.
Drop your library in. Get measurement-grounded feedback on every image — no grades, no superlatives, no "8/10 composition." Just concrete, personalized advice from a peer who happened to measure the histogram, clipping, and sharpness before speaking.
What Photo does
Measurement-first critique
Before any AI word is written, Lumis computes a full measurement layer — histogram, highlight/shadow clipping, sharpness variance, face detection, rule-of-thirds alignment. The critique is strictly anchored to these numbers.
Streaming AI critique
Click a photo and get a personalized critique streamed live via SSE. Descriptive, not graded. Humble, not authoritative. Ends with one concrete next-shoot suggestion phrased as an experiment.
Re-critique conversation
Not satisfied? Ask for a follow-up. The AI engages with the prior conversation thread and the same measurement data, giving you a second read without repeating the first.
RAW to preview pipeline
Upload JPEG, PNG, HEIC, TIFF, WebP, or common camera RAW formats (CR3, NEF, ARW, DNG, RAF, RW2). The worker generates four derivative profiles — thumbnail, grid, preview, and hero — plus EXIF extraction and measurement computation.
Per-org AI budget
Every organization gets a monthly AI spend cap (default $10). Every call is logged with full token counts, cost, latency, and correlation ID. Friendly budget-exceeded handling — never blames the user.
Trust + feedback
Thumbs-down every critique that misses the mark. Flag inaccurate, off-tone, or unhelpful feedback. Your signals feed back into the prompt layer — org-isolated, never shared across customers.
How it works
Upload
Drag and drop or click to select. SHA-256 deduplication prevents accidental re-uploads.
Process
Worker generates derivatives, extracts EXIF, and computes the measurement layer in the background.
Critique
Click any photo to request a streaming AI critique grounded in its measurement data.
Improve
Take the next-shoot suggestion into the field. Come back and compare. Repeat.
The critique voice
"You are a peer photographer talking with another photographer. Not a workshop mentor. Not a contest judge. Descriptive, not graded. Humble, not authoritative."