Supermodel Cara Delevingne has taken to Twitter to air her gripes with the fashion industry.

The British clotheshorse, known for her signature dark brows, vented that fashion professionals could be deceitful and cold.

Why do people in the industry lie so much???? They would rather see you fail than succeed. What happened to supporting each other

While it's not yet clear who or what the comments were directed at, Delevingne said fashion was "not the most understanding or compassionate of industries".

She also said she worked "extremely hard" and at times, overextended herself.

All I can say is that I work extremely hard and 'sleeping' is proof that sometimes I work too hard. I apologise for being so ambitious

Delevingne, a self-described "professional human being", proceeded to complain it was difficult to fight those with "all the power" when you're powerless yourself.

She capped off the cryptic rant by posting a screenshot of her comments to Instagram, captioning the picture: "What happened to supporting each other?"

Delevingne also retweeted a semi-nude snap of herself holding a pair of flashlights over her breasts in support of the "Free the Nipple" Instagram campaign.

Scout Willis kicked off her campaign by pictures of herself on Twitter roaming New York's streets without a shirt or bra.

The protest came after her Instagram account was suspended when she shared a photo featuring two topless women.