P-H3-Image vs FLUX 3 Image Klein

Q: Which one generates better images?

We have no sourced bake-off. P-H3-Image photorealism / film / editorial sentences and BFL blog Elo sentences stay vendor/self-reported. Do not treat either as a Midjourney verdict.

Q: Can I run both locally?

Both publish weights. P-H3-Image bf16 names ~101 GB with the upsampler at 8 MP; the Comfy w4a8 set names ~21 GB. Klein docs name RTX 3090+ (INT8 from ~8 GB on the BFL blog). None of those VRAM figures are forkalt measurements.

Q: Which license is usable commercially?

P-H3-Image is MiniMax H3 Community License (geo exclusions; $20M revenue authorization; “Powered by MiniMax H3” / display “MiniMax H3”). Klein is FLUX Kommunity License v.1.0 (non-commercial plus <$5M Qualifying User commercial output generation). Neither is Apache-2.0 or MIT. Not legal advice.

Q: Why not vs Qwen-Image-2.1-Turbo?

Klein is the closer live comparator already on this site: both are few-step no-CFG T2I+edit transformers with a first-party prompt upsampler, ModularPipeline, and ComfyUI. Qwen turbo remains on FLUX 3 Image Klein vs Qwen-Image-2.1-Turbo.

Official P-H3-Image collage from the PrunaAI/P-H3-Image Hugging Face card — PrunaAI/P-H3-Image card assets/p-h3-image.jpg. Source · License: MiniMax H3 Community License.

Official Black Forest Labs FLUX 3 Image Klein open-weights launch collage — BFL official blog launch gallery. Source · License: Black Forest Labs product image.

Verdict. Pick P-H3-Image if you want Pruna’s 8-step MiniMax-H3 still-image checkpoint (diffusers ModularPipeline + native ComfyUI; vendor 4-bit ~21 GB at 8 MP) and can accept the MiniMax H3 Community License’s EU/UK/Korea/US exclusion. Pick FLUX 3 Image Klein if you want Black Forest Labs’ 5.6B distilled image transformer with the FLUX Kommunity License’s <$5M commercial-output clause and documented RTX 3090-class recipes. We have no sourced bake-off.

Compare P-H3-Image and FLUX 3 Image Klein.

Dimension	P-H3-Image	FLUX 3 Image Klein	Source
License	other (MiniMax H3 Community License; EU/UK/KR/US excluded)	other (FLUX Kommunity License v.1.0; <$5M Qualifying Users)	LICENSE files (P-H3 2026-11-04 / Klein 2026-10-16)
Gating	No	Distilled gated (auto); Base is a separate card	Hugging Face API
Developer	Pruna AI (base MiniMax-H3)	Black Forest Labs	Official cards
Parameters	33.1B transformer (HF safetensors 33,122,992,896); 4B text encoder separate	5.6B image transformer; Qwen3-VL-4B-Instruct text encoder separate	HF API / official cards
Sampling	8 steps, no CFG or negative prompt	Distilled 16 steps, no CFG; Base 50 steps, guidance 3.5	Official cards
Job	Text-to-image and editing with up to 8 input images; best at ~8 MP	Text-to-image, instruction editing, ≤10 refs, bounding boxes, native 4K	Official cards / BFL docs
Prompt upsampler	Qwen3.5-9B, on by default in the ModularPipeline	flux-3-image-klein-pup; reference CLI on by default, Diffusers does not call it alone	Official cards
Hardware (vendor)	Comfy w4a8 ~21 GB peak at 8 MP; diffusers bf16 ~101 GB with upsampler	Docs RTX 3090+; blog INT8 from ~8 GB; B200 1024² peak 31/26/25 GB	P-H3 cards (2026-11-04); BFL docs/card (2026-10-16)
Hugging Face likes	48 on the diffusers card (2026-11-04)	238 on the distilled card (2026-10-16)	Hugging Face API
Quality vs Midjourney	Not independently tested	Not independently tested (BFL blog Elo is vendor/self-reported)	n/a

When to choose which

MiniMax-H3 still-image weights with native Comfy 4-bit 8 MP path: P-H3-Image — Vendor 21 GB peak. License excludes EU/UK/KR/US. Not a quality rank.
5.6B consumer recipe under FLUX Kommunity <$5M commercial-output clause: FLUX 3 Image Klein — BFL docs name RTX 3090. Qualifying User terms are not a blanket commercial grant.
Use from the EU, UK, South Korea, or United States without a separate MiniMax license: FLUX 3 Image Klein — P-H3-Image’s Community License excludes those territories. Klein has its own Kommunity terms. Not legal advice.
Apache-2.0 still-image checkpoint: neither — Iris-3B and MOSS-Image on this site are Apache-2.0. Different size and job details.

Read the entity pages: P-H3-Image and FLUX 3 Image Klein. Both are listed on Midjourney-class alternatives. Official MiniMax still-image weights versus this Pruna pack: MiniMax-H3-Image vs P-H3-Image. Same Klein versus Qwen turbo: FLUX 3 Image Klein vs Qwen-Image-2.1-Turbo. Local UIs: ComfyUI vs Midjourney, Fooocus vs Midjourney.

These are generation checkpoints, not pixel editors. Retouching an existing photo is PhotoCraft vs GIMP. P-H3-Image is not Pika H3 Flex (video on the same MiniMax-H3 base).

Why this comparison exists

Both cards are few-step, no-CFG open image transformers with text-to-image, instruction editing, multi-reference input, a prompt upsampler, Diffusers ModularPipeline, and ComfyUI. Klein is 5.6B under the FLUX Kommunity License. P-H3-Image is a 33.1B MiniMax-H3 still-image derivative under a geo-limited Community License. Identification, not a bake-off.

Sourced snapshot (P-H3-Image 2026-11-04 / Klein 2026-10-16)

Field	P-H3-Image	FLUX 3 Image Klein
Host	huggingface.co/PrunaAI/P-H3-Image (not gated)	huggingface.co/black-forest-labs/flux-3-image-klein (`gated: auto`)
HF likes	48 (2026-11-04)	238 (2026-10-16)
License	MiniMax H3 Community License (SPDX other)	FLUX Kommunity License v.1.0 (SPDX other)
Size	33.1B transformer (HF)	5.6B image transformer
Sampling	8 steps, no CFG	Distilled 16 steps, no CFG
Refs	Up to 8 input images (card)	Up to 10 reference images (blog/docs)
Native resolution named	Best at 8 MP (default 2912²)	Native 4K (blog/docs)
ComfyUI	Native on master/nightly (card)	Named in BFL docs
Quality vs Midjourney	Not independently tested	Not independently tested

License

P-H3-Image LICENSE excludes the EU, UK, Republic of Korea, and United States unless you have a separate MiniMax license, and adds a USD 20 million yearly-revenue authorization plus “Powered by MiniMax H3” / display “MiniMax H3”. Klein LICENSE.md is FLUX Kommunity License v.1.0: non-commercial use, plus commercial output generation by Qualifying Users under US$5,000,000 gross annualized revenue including affiliates. Both text encoders have Apache-2.0 Qwen pieces. Not legal advice.

How to choose

Need official MiniMax 16 MP / 6-step still-image weights: MiniMax-H3-Image — MiniMax-H3-Image vs P-H3-Image.
Need Pruna’s MiniMax-H3 still-image pack and can accept the geo-limited Community License: P-H3-Image.
Need BFL 5.6B Klein and the Kommunity <$5M output clause: FLUX 3 Image Klein.
Need Apache-2.0 bilingual T2I: MOSS-Image.
Need a small Apache-2.0 pixel-space checkpoint: Iris-3B.
Need Qwen turbo (research license): Qwen-Image-2.1-Turbo.

See also Image & Design and comparisons.

FAQ

Which one generates better images?

We have no sourced bake-off. P-H3-Image photorealism / film / editorial sentences and BFL blog Elo sentences stay vendor/self-reported. Do not treat either as a Midjourney verdict.

Can I run both locally?

Both publish weights. P-H3-Image bf16 names ~101 GB with the upsampler at 8 MP; the Comfy w4a8 set names ~21 GB. Klein docs name RTX 3090+ (INT8 from ~8 GB on the BFL blog). None of those VRAM figures are forkalt measurements.

Which license is usable commercially?

P-H3-Image is MiniMax H3 Community License (geo exclusions; $20M revenue authorization; “Powered by MiniMax H3” / display “MiniMax H3”). Klein is FLUX Kommunity License v.1.0 (non-commercial plus <$5M Qualifying User commercial output generation). Neither is Apache-2.0 or MIT. Not legal advice.

Why not vs Qwen-Image-2.1-Turbo?

Klein is the closer live comparator already on this site: both are few-step no-CFG T2I+edit transformers with a first-party prompt upsampler, ModularPipeline, and ComfyUI. Qwen turbo remains on FLUX 3 Image Klein vs Qwen-Image-2.1-Turbo.

Sources & verification

Last verified 2026-11-04 · Last updated 2026-11-04· Edited by forkalt editors · Editorial policy

License notes are not legal advice. Read the original LICENSE. Trademark & disclaimer.