Billable Hours Alternatives: How Teams Buy Legal in 2026
Caitlin Price
At our company, the marketing lead hands legal 400 AI-generated ad variations and needs you to review it as soon as possible. That review used to be two versions, one week, and an invoice from outside counsel.Bjarne Tellmannwatched that math change from the buyer’s chair for 30 years as general counsel at Coca-Cola, Pearson, Aramco, and Haleon, and when he joined CZ and Friends, GC AI’s podcast, to talk about the death of the billable hour, he opened with the line every managing partner should tape to a monitor:
“I think for most firms, they’re just paralyzed right now. The irony is you won’t fail because you’re so bad at what you do. You will fail precisely because you are so good at what you do.”
We have made the same argument sinceCecilia Ziniti, our CEO and a three-time general counsel, foundedGC AI: the billable hour breaks from the buyer’s side, through the stakeholders and the clients. In 2026 that means in-house teams, because an AI-equipped in-house lawyer now produces in minutes the drafts, reviews, and research memos that firms price by the hour.
The buyer’s market has three moving parts: the fee structures replacing hourly billing, the insourcing math AI changed, and the tools that police the hours teams still buy.
GC AI, the enterprise legal AI platform built for in-house counsel, is how in-house teams run all three:Playbooksfor the contract review you keep,Researchfor the memo you used to send out,Contract Intelligencefor answers from the contracts you already signed, and aSkill Libraryskill for the invoices you still pay.
Why the Billable Hour Is Breaking Now
The billable hour is breaking at the base of the law firm pyramid, where the junior hours live. The structural read comes from Tellmann’s new book,Law in the Era of AI(Wiley, April 2026), and his account on the podcast:
“you have law firms based on a pyramid model that was developed in the early 1900s by Cravath that relies on a mountain of human junior talent, charging hourly rates for input costs using low levels of technology and constantly upping their price, with clients who have manifest dissatisfaction with that model. It’s kind of like I thought about it and I looked at this and I was like, this is Clayton Christensen’s innovator’s dilemma unfolding.”
Christensen’s disruption patternpredicts the incumbents will protect their most profitable work while the base of the pyramid erodes underneath them, and that is the paralysis Tellmann describes. The firms are excellent at a model whose unit of sale is losing its scarcity. Bill the 400-variation ad review by the hour and legal prices itself out of the meeting.
A firm selling legal services in the Cravath model is selling a unit that just got a lot cheaper, so what it charges for has to sit above that unit. For the in-house buyer, the practical consequence arrives in the budget cycle: work that priced at associate-hours now prices at platform-plus-review, and every renewal conversation with a firm happens against that alternative.
Billable Hour Alternatives: The Fee Arrangements In-House Teams Use in 2026
Alternative fee arrangements (AFAs) are fee structures priced on the work delivered instead of the hours worked: a flat price per matter, a capped total, a portfolio subscription, or a discounted rate plus an outcome bonus. Six matter most in-house:
Flat fees per matter type: One price for a defined deliverable: an NDA negotiation, a visa filing, a standard commercial contract. Flat fees work where volume is high and scope is predictable.
Capped fees with collars: Hourly billing to a ceiling, sometimes with shared savings below a floor. Capped fees let a team try output pricing with a safety rail, and they are the easiest first ask of an incumbent firm.
Fixed-fee portfolios and subscriptions: A monthly or annual price for a stream of work, all commercial contracts or all employment advice, which converts legal spend from variable to budgetable.
Success and holdback structures: A discounted base rate plus an outcome kicker fits litigation and deals where results are measurable.
Panel tiering: Tellmann ran this play at Pearson, and his version is the memorable one: “there’s a very easy way to reduce external spend, which is to panelize, right? To think more proactively about what firms you’re using and for what work. Use a Ferrari when you need a Ferrari and use a Honda when you need a Honda”. Shifting a slice of spend from premium to mid-market firms saved 20 to 30 percent on rates before any fee-structure change, by his account.
Insourcing with AI leverage: The fee structure that beats every discount is keeping the matter in-house. When Tellmann joined Pearson, spend ran roughly 70 percent external; his target state was 40 percent, with the difference funding internal capacity. AI moves that frontier further, because the marginal matter an in-house lawyer can absorb keeps growing.
The pricing pressure runs in both directions, and the firms that adapt will get there on their own incentives.Alisha Cieslak, former Chief Legal and Risk Officer at Gordon Food Service, told Cecilia why on her own CZ and Friends episode:
“Every incentive they’ve had is not to go faster, it’s to bill by the hour, whereas in-house are incentivized to go faster. So if we’re all incentivized to go faster together, to achieve better outcomes for the company, and you’re incentivized based on that, I think we all win.”
A firm on a flat fee has every reason to use AI, and a client with AI leverage has every reason to demand flat fees. The two adoption curves feed each other, which is why the AFA share of your outside spend is worth tracking the way you track the spend itself.
How AI Changes Your Insourcing Math
Nearly half of corporate legal budgets go to outside counsel, perACC benchmarking, which makes external spend the largest lever a GC controls. GC AI’sDecember 2025 ROI studyof more than 100 active customers measured what happens when the in-house side gets real leverage: 14 hours saved per lawyer per week, a 14% reduction in outside counsel spend, and approximately $252,000 in annual savings for the median company. The $252,000 is that 14% applied to the roughly $1.8 million median outside counsel budget in the ACC data.
Cecilia’s test for whether a platform is working is the line item a CFO reads first. As she put it in afounder interviewthis past June:
“If you adopted GC AI and your outside counsel spend was $100,000 in month one before you did, and it was $50,000 in month two, you can attribute at least a portion of that $50,000 saved to the tool.”
Insourcing is one half of how teamsreduce outside counsel spend; the other half isoutside counsel management, the panels, guidelines, and invoice reviews that discipline what stays external. Every matter your team keeps is billed at the one rate that never goes up, and the work most likely to move in-house first, contract review, routine research, first drafts, is the work AI accelerates most.
Policing the Hours You Still Buy
The billable hour survives longest in bet-the-company litigation and specialist regulatory work, and the difference is that the invoices for that work get a line-item review in minutes.Chuck Kable, General Counsel and Corporate Secretary at Innovative Renal Care and a CZ and Friends guest, described his first move in a new seat:
“At the point that I came in, I wanted to see the invoices. How much are they billing us per month? What’s involved in these? What’s the strategy here? Why do we have three law firms involved? These kinds of questions.”
The review rocked the apple cart, in his words, and it worked: he told one firm, “I’m not paying for XYZ,” and the engagement moved to billing in tenths of an hour off quarter-hour increments. Every GC has run some version of that review on a slow Friday; the two-minute voicemail billed as 0.25 is a genre classic. The AI version runs in minutes.
GC AI’sSkill Libraryincludes an External Counsel Invoice Review skill, built by GC AI solutions attorney Stacey Weltman from her own in-house years; sheannounced the skill on LinkedInin July. Attach the invoice and it parses every line item; flags block billing, vague descriptions, rate overages, staffing-level mismatches, and duplicate entries; checks the charges against your outside counsel guidelines and fee schedules; tracks budget and matter-cap adherence; and drafts the correction email to the billing partner.
Firms respond to what clients inspect. When every invoice gets a line-item review, the block-billed “attention to file” entry gets caught the week it lands, and the correction email goes out while the matter is still open. That enforcement turns outside counsel guidelines from a PDF into the operating terms of the relationship.
How to Start the Shift This Quarter
Three moves fit inside a quarter:
Pick one matter type and pilot a flat fee: Choose something high-volume and scoped, NDAs or standard vendor contracts, and ask your incumbent firm to quote it flat. The quote conversation itself reveals how the firm thinks about AI efficiency.
Refresh the outside counsel guidelines with AI-era assumptions: Add staffing expectations for AI-assisted work, require disclosure of AI use where it affects hours, and attach your fee schedules so invoice review has something to check against.
Run the last three months of invoices through a line-item review: The findings fund the rest of the program, and the correction emails reset expectations faster than any panel memo.
The Tools That Make the Shift Stick
Each of the three moves has a matching workflow in GC AI:
Flat-fee pilots:Playbooksruns the scoped contract review a flat fee depends on, against your own standard positions.
Insourced research:Researchproduces the cited memo that used to be a firm’s first draft.See how Research works.
Portfolio answers:Contract Intelligenceanswers questions from the contracts you already signed, each with a citation back to the source clause, so a renewal review starts from your own paper.
**Invoice enforcement:**the External Counsel Invoice Review skill above reads every bill line by line against your guidelines.
Ziniti has said she wants the product designed for helping the company achieve its goals, with the redline as one piece of that job, and she tells buyers to grade any legal AI, hers included, with the rubric they already use for outside counsel.
Cameron Clark, Head of Legal atArc’teryx, compressed that evaluation to five words:
GC AI “pays for itself in weeks.”
As of September 2026, 2,200+ legal teams across 53 countries run the same math, including the legal departments atLiquid Death,Snyk,Tipalti, andColumbia Sportswear, and GC AI’sfree legal AI classeshave taught 6,000+ in-house lawyers the prompting that makes the insourcing math work. Run the three moves this quarter, and January’s budget conversation starts from a different number.
