ForecastBlack Forest Labsimage model

Flux-3.1-Image-Klein has not been announced. Based on how often Black Forest Labs ships new versions, our forecast is that it arrives around December 27, 2026, probably between November 27, 2026 and February 10, 2027.

The forecast

Most likely	December 27, 2026
Window	November 27, 2026 to February 10, 2027
Chance it arrives in that window	About 18%
Follows	Flux-3-Image-Klein (out October 13, 2026)
Based on	no earlier gap to learn from, so we assume about 75 days

How we got this

Black Forest Labs is the maker of Flux-3-Image-Klein. We look at the gaps between its earlier versions (Flux-3-Image-Klein, 2026-10-13) and project the next one. It is a guess from a pattern, not news: the maker has not said Flux-3.1-Image-Klein exists. This page turns into the launch page, with price and facts, as soon as the model shows up on OpenRouter, Hugging Face or GitHub.

Available now from Black Forest Labs

Predicted automatically by Modelcast. Not affiliated with Black Forest Labs.