black-forest-labs/flux2 (FLUX.2 inference code)
Source: https://github.com/black-forest-labs/flux2
Candidate for a character-consistency/multi-reference reproduction task for the library (not run here).
Structured fields
{
"archived": false,
"checked_at": "2026-10-17T00:00:00.000Z",
"usefulness": "Official inference repo for FLUX.2, a newer open-weight BFL family supporting text-to-image, single-reference and multi-reference editing (character, object, style references without finetuning). Variants span a 32B dev model and smaller klein models, with mixed licenses per size.",
"source_type": "repository",
"availability": "available",
"source_owner": "Black Forest Labs",
"next_check_at": "2026-10-31T00:00:00.000Z",
"hardware_notes": "Sourced: klein 4B about 8GB VRAM; dev 32B needs H100-class or quantized builds (4090 with remote text encoder).",
"known_limitations": [
"Quantised-build quality vs full precision not documented in the fetched sources.",
"Klein model cards not inspected; license claims rest on the repo README."
],
"upstream_updated_at": "2026-03-12T15:06:20.000Z"
}Evidence claims
- [sourced_fact] FLUX.2 [dev] is a 32B flow-matching transformer under the FLUX.2-dev Non-Commercial License; FLUX.2 [klein] 4B models are Apache 2.0 and 9B models use the FLUX Non-Commercial License (per README). source
- [sourced_fact] README: klein 4B needs about 8GB VRAM; FLUX.2 [dev] needs H100-class unless quantized; Hugging Face quantized builds can run on an RTX 4090 with a remote text encoder. source
- [sourced_fact] FLUX.2-dev model card: supports single- and multi-reference editing incl. character/object/style references without finetuning; requires NSFW/IP-infringement filters or manual review at input and output; files gated. source
- [sourced_fact] README dated news: FLUX.2 [dev] release 25.11.2025; FLUX.2 [klein] family release 15.01.2026. source
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.
Rights
| component | license | hosting | redistribution | modification | training | Evidence and notes |
|---|---|---|---|---|---|---|
| code | Apache-2.0 | permitted | permitted | permitted | unknown | Apache License 2.0 text confirmed at repo LICENSE.md. |
| model_weights | FLUX.2-dev-Non-Commercial-License | restricted | restricted | restricted | unknown | FLUX.2 [dev] and klein 9B weights: non-commercial license per README/model card; card says outputs can be used commercially but to read the full license. The FLUX.2 license text itself was not fetched, so output/training clauses are unchecked. |
| model_weights | Apache-2.0 | permitted | permitted | permitted | unknown | FLUX.2 [klein] 4B variants stated as Apache 2.0 in the README only; the individual klein model cards were not fetched. |