Anthropic joins Frontier: $915M tranche, first AI member

Anthropic is joining Frontier, contributing to a new $915 million tranche of funding and becoming the first pure AI startup to join the carbon removal collective. The new tranche nearly doubles Frontier pledges, bringing total commitments to $1.8 billion.

What exactly did Anthropic commit and why does it matter?

Anthropic joined Frontier and is part of a $915 million funding tranche that raises total pledges to $1.8 billion, making it the first pure AI company to join the group. The company’s membership is its first climate-related deal; Anthropic has not yet produced a sustainability report and has said it favors an "all of the above" approach to energy.

Frontier vets carbon removal companies and signs contracts for projects it believes can deliver. So far Frontier has contracted nearly $700 million across more than 50 projects to remove 1.8 million tons of carbon, and member companies typically use Frontier-backed carbon removal credits to reduce their publicly listed carbon footprints.

How will the new funding change Frontier’s strategy?

Frontier said the new funding will come with a higher level of scrutiny, and it will fund fewer projects while focusing on those with the best chance at removing a gigaton, defined in the announcement as 1 billion metric tons of CO2, or more annually. New contracts will run around eight to 10 years, Frontier said.

The $915 million tranche nearly doubles existing pledges, taking the total to $1.8 billion and bolstering Frontier’s position in the carbon removal industry. Frontier was founded by tech companies including Stripe, Google, and Shopify to help those companies meet climate pledges, and Frontier said it will contract as far out as 2040. For any new contract it signs, the carbon removal company must "show a path to government subsidy/support," a Frontier spokesperson told TechCrunch.

What technologies and time horizons are involved?

Since its launch in 2022, Frontier has backed a range of carbon removal technologies including direct air capture, enhanced rock weathering, bio-oil, ocean antacids, and bioenergy with carbon removal and sequestration. The organization’s shift from many smaller bets to fewer larger ones mirrors purchasing behavior at large buyers such as Microsoft.

Frontier has so far contracted nearly $700 million across more than 50 projects to remove 1.8 million tons of carbon. New contracts will typically be eight to 10 years in length, and Frontier said it will sign contracts as far out as 2040, signaling multidecade planning even as it looks for projects that can scale to gigaton levels.

Why it matters

Anthropic’s entry signals that a pure AI company is moving from energy procurement toward direct participation in carbon removal markets. AI firms have been on an energy buying spree, and Anthropic’s pledge — its first climate deal — may indicate a shift in how AI companies address residual emissions that cannot be eliminated today. Frontier’s move to fund fewer, larger projects and require a path to government support tightens the marketplace standards companies must meet if they want Frontier’s backing.

The broader context is that the UN Intergovernmental Panel on Climate Change has said carbon dioxide removal technology will be necessary to reach net zero emissions, yet few companies or consumers are willing to pay for it directly. Frontier’s longer contracts and push toward gigaton-scale projects reflect an attempt to create a market large enough to attract supply while pushing projects toward eventual public support.

What to watch

Watch which carbon removal technologies Frontier selects for its larger bets, and whether Anthropic or other AI companies disclose sustainability reports or further climate commitments. The next concrete milestones are the specific projects funded under the new $915 million tranche, and whether any contracted projects demonstrate a credible pathway to government subsidy or support by the 2040 horizon.