Courtland Leer (@courtlandleer) — Twitter Score 48 out of 1000

Courtland Leer is a technology entrepreneur who co-founded Plastic Labs, a company building AI-agent identity and memory infrastructure. Courtland Leer's Twitter Score is 48 out of 1000 as of September 2026, ranking #18,848 (top 5%) among 486,860 tracked accounts.

Courtland Leer co-founded Plastic Labs and serves as its COO. The company began as an education-technology venture before pivoting to large language models and gaining entry into Betaworks' AI Camp: Augment program. Plastic Labs subsequently raised a $5.4M pre-seed round led by Variant, White Star Capital, and Betaworks, with Mozilla Ventures, Seed Club Ventures, Greycroft, and Differential Ventures also participating.

Courtland Leer co-authored research from Plastic Labs that achieved state-of-the-art performance on the OpenToM theory-of-mind benchmark, and contributed to the January 2026 announcement of Honcho 3, a major release of the company's agent-memory system. Plastic Labs, together with Betaworks and the Solana Foundation, also launched Xeno Grant, a four-week accelerator focused on autonomous AI agents capable of self-custodying a Solana wallet. Courtland Leer was previously affiliated with the Solana Foundation. Courtland Leer's account has accumulated 4,813 followers as of September 2026 across 5,390 posts, and has been mentioned by 10 accounts a total of 52 times.

Who follows Courtland Leer on X?

The accounts that follow Courtland Leer include 152 founders, 41 angel investors, 61 influencers and 4 VCs, among them Chris Dixon, Marc Andreessen, Stani, Threadguy, Jesse Powell and Frank.