black-forest-labs
Black Forest Labs: FLUX 3 Image Klein
black-forest-labs/flux-3-image-klein
Our take
AI-assisted analysis based on the sources below. Suitability is an editorial assessment; test it on your own workload.
FLUX 3 Image Klein is an image generation and editing model from Black Forest Labs, listed in the OpenRouter catalog as black-forest-labs/flux-3-image-klein. The catalog describes it as an open-weights model that accepts text and image input and returns image output, positioned for text-to-image generation and multi-reference editing intended to keep characters and subjects consistent. This source pack contains only the catalog listing, with no independent model card or measured performance data, so all capabilities described here are catalog-reported and unverified.[1]
Strengths
- Per the OpenRouter catalog, it accepts both text and image inputs and produces image output, covering generation and editing in one model.[1]
- The catalog description highlights multi-reference editing intended to keep characters and subjects consistent, though the description text is truncated.[1]
- The catalog lists a seed parameter, which generally supports reproducible outputs, and describes the model as open-weights.[1]
Limitations
- Only the OpenRouter catalog entry was supplied; no independent model card was available in this source pack, so capabilities are provider-reported rather than verified.[1]
- The catalog's benchmark fields are empty, so no measured performance exists in this evidence; validate quality on your own workload before adopting.[1]
- License terms, hardware requirements, and safety properties are not documented in the supplied evidence, and the catalog description is truncated mid-sentence.[1]
Where to use it
- Text-to-image generation for prototypes or drafts, matching the catalog's stated positioning; confirm output quality on your own prompts.[1]
- Editing workflows that supply multiple reference images and need consistent characters or subjects, as described in the catalog.[1]
- Pipelines that benefit from seed control for repeatability, given the catalog-listed seed parameter.[1]
Sources
- [1] OpenRouter catalog · Black Forest Labs: FLUX 3 Image KleinSources checked: Nov 13, 2026
About this model
Description below is the original text supplied by OpenRouter, shown in the source language.
FLUX 3 Image Klein is an open-weights image generation and editing model from Black Forest Labs. It is suited for text-to-image, multi-reference editing that keeps characters and subjects consistent across...
Specifications
- Model ID
- black-forest-labs/flux-3-image-klein
- Canonical ID
- black-forest-labs/flux-3-image-klein-20261015
- Creator
- black-forest-labs
- Added to OpenRouter
- 15.10.2026
- Context length
- 46,864
- Modality
- text+image->image
- Input modalities
- text, image
- Output modalities
- image
- Token pricing
- No per-token price in the source snapshot — see OpenRouter for the billing unit
- Knowledge cutoff
- —
- Expiration date
- —
Tasks and capabilities
A grade appears only where the source supplies a matching measurement for that task, the model is active and the cohort holds at least 10 comparable models. The capability column lists facts the source declares — supported formats, reasoning and tool parameters — which are not measured quality.
| Task | Grade | Source-declared capability |
|---|---|---|
| General quality | No measurement | — |
| Coding | No measurement | — |
| Agents | No measurement | — |
| Writing | No measurement | — |
| Reasoning | No measurement | — |
| Document analysis | No measurement | — |
| Vision | No measurement | input: image |
| Image generation | No measurement | output: image |
| Audio | No measurement | — |
| Video | No measurement | — |
| Embeddings | No measurement | — |
Evaluations
No evaluations are supplied for this model.
How grades work
Each letter grade compares a model only against other models scored by the same source and metric in the current snapshot. S means the top 10%, A the next 20%, B the next 30%, C the rest. Models without a published measurement are shown as not rated — a supported format alone never implies measured quality.
- S — S — top 10% of the cohort
- A — A — next 20% of the cohort
- B — B — next 30% of the cohort
- C — C — below the B band
Providers
Optional live provider statistics from OpenRouter. Missing values are unknown, not zero.
| Provider | Context length | Price in /1M | Price out /1M | Latency p50 (30m, s) | Throughput p50 (30m, tok/s) | Uptime (30m) |
|---|---|---|---|---|---|---|
| Black Forest Labs | 46,864 | — | — | — | — | 90.48% |
Provider data retrieved: 13.11.2026
Related articles
No published articles identify this model yet.