Akamai Got $11.6B From Anthropic. It Also Gave Away a Piece of Itself.

A company whose entire cloud computing segment generated $99 million of revenue in a single quarter just signed a seven-year contract worth $11.6 billion. That gap is the first thing serious investors should sit with before celebrating the more than 20% after-hours move late Thursday.

What changed overnight

Akamai announced a significantly expanded relationship with Anthropic for $11.6 billion of contractual commitment over seven years, with Anthropic leveraging Akamai Cloud’s distributed infrastructure to support CPU workload growth at scale. The transaction also provides for potential expansion of up to an additional $9 billion, representing a total potential commitment of approximately $20 billion. Shares jumped more than 20% in extended trading on Thursday, September 24, 2026, after the announcement.

The contract is not the first between these two companies. In May, Akamai’s first-quarter report included a $1.8 billion, seven-year commitment from an unnamed frontier model company, and Bloomberg reported the next day that the customer was Anthropic. Thursday’s announcement formalizes and dramatically expands what was already the most consequential customer relationship in Akamai’s cloud buildout.

The earnings power question

Total capital expenditures related to the $11.6 billion commitment are estimated at approximately $5.5 billion, and Akamai anticipates an increase of approximately $1.7 billion in capital expenditures in 2026 to secure and pre-purchase critical supply chain components, including memory. Akamai has said it anticipates no impact to the company’s 2026 revenue guidance. Front-loaded spending against back-loaded recognition is the model here, and it compresses near-term free cash flow before the revenue curve catches up.

The warrant attached to the deal deserves more scrutiny than it has received. Akamai issued Anthropic a warrant to purchase non-voting convertible Series B Preferred Stock representing 7.7 million shares of Akamai common stock on an as-converted basis, or up to approximately 5% of shares outstanding, at an exercise price of $111.33 per share. About 2% vests with the initial $11.6 billion commitment; the remaining approximately 3% vests through successful expansion up to an additional $9 billion, with each additional $3 billion in purchases vesting approximately 1% of shares outstanding. Anthropic is being paid in equity to keep spending. That is not standard vendor economics.

The bull case

The $11.6 billion figure is a contractual commitment covering seven years, not revenue to be recognized immediately, and Akamai did not disclose the expected annual revenue schedule or contract margins in the press release. But the scale of the commitment relative to Akamai’s current cloud base is genuinely transformational. Cloud Infrastructure Services revenue came to $99 million in the second quarter of 2026, up 39% year over year. Even a conservative ramp of the Anthropic contract would multiply that figure several times over by the late 2020s, pulling Akamai firmly into territory currently occupied by CoreWeave, Oracle, and Microsoft as preferred AI infrastructure providers.

The risks

The $11.6 billion commitment is subject to termination rights described in the agreement and to the satisfaction of certain delivery and service availability requirements. Anthropic may terminate upon a material uncured breach by Akamai or upon a change of control of Akamai in favor of a direct competitor of Anthropic. That change-of-control clause is an unusual provision that limits Akamai’s strategic optionality for the duration of the contract. Beyond contract risk, Akamai is committing $5.5 billion of capital to serve CPU workloads specifically. If Anthropic’s architecture shifts toward more GPU-intensive inference at the edge, Akamai’s infrastructure fit becomes a question rather than an asset.

The announcement does not disclose capacity, service pricing, a deployment timetable, or how workloads will be distributed geographically, and it refers specifically to CPU workloads rather than a dedicated GPU training buildout.

What to watch

The next real test is management’s next earnings call. Investors should press management on revenue recognition timing, the implied margin profile of the Anthropic contract versus Akamai’s existing cloud business, and how the $1.7 billion in 2026 capex affects free cash flow guidance. The warrant vesting schedule is the other variable: every $3 billion Anthropic spends hands back roughly 1% of the company. At full exercise, that is a meaningful dilution event. Whether the revenue more than compensates is the central question this contract raises, and the 8-K does not answer it.