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Open-weight models now handle most of the tokens on OpenRouter. But the closed labs are still taking most of the money. OpenRouter Head of Insights Peter Walker joins us to explain what that gap means and what OpenRouter's data shows about who's actually winning the model race.
Peter, who led insights at Carta before OpenRouter, walks us through the day agents overtook humans in token usage and how quickly open-weight models are catching up to the frontier labs. We also discuss why the labs keep replacing their own models, whether models are turning into commodities, the top 1% of AI spenders and the Anthropic IPO, decision models like Jev, why everyone's a little benchmarked out and whether AI is actually getting cheaper per task.
Enjoy!
Timestamps:
0:00 Intro
0:43 What OpenRouter does
2:13 Joining Stripe
2:40 OpenRouter's rankings data
3:48 Agents overtake humans in token usage
5:06 Open-weight models are closing the gap
5:47 How much of the market OpenRouter sees
7:00 How fast token usage is growing
7:54 Where the money goes: open vs. closed
9:01 Do companies spend less as they mature?
10:49 Why labs cannibalize their own models
12:07 What if open models hit 99% of tokens?
12:56 Are models becoming commodities?
14:15 The top 1% of AI spenders and the Anthropic IPO
15:54 Jev and the rise of decision models
17:20 Why we're all benchmarked out
18:36 Is most AI work just classification?
19:20 Why caching keeps getting better
20:34 Cost per token vs. cost per task
Everyone says they do evals. Almost nobody does. LangChain actually put a number on it: around 89% of teams have observability set up, and only about a third ever do anything with what it collects.
So I got five people who do this for a living in a room, from LangChain, Mercor, Galileo, Langfuse, and CoreWeave. Side note, three of those companies got acquired in the past year. Galileo to Cisco, Langfuse to ClickHouse, Weights & Biases to CoreWeave. The layer is getting bought up faster than most teams can figure out how to use it.
A few things I didn't expect going in. Grading an agent while it runs can cost you more than the agent does. The model you're using as a judge is probably wrong in ways you'll never notice. And the guy whose company sells eval tooling told the room to stop writing evals before shipping, just put it out and learn from what breaks.
We also got into the parts nobody blogs about. How many traces a person still has to read by hand. Why the same agent is a weekend project internally and a year of work at a bank. What happens when your users start doing things you never thought to test.
If you've shipped an agent and had no real way to know whether it was working, this one's worth your time!
Chapters
00:00 Welcome
00:34 Meet the Panel
02:11 Why Nobody Runs Evals
03:35 Traces Explained
04:14 Offline Evals Basics
05:13 Online Evals in Production
08:26 Surprises From Production
11:22 Trajectory Checks and Bucketing
12:51 Verifiers and Trusting Evals
14:21 Hard Lessons at Scale
19:10 Human Review and Judge Drift
21:29 Which Agents Are Hardest
23:41 Voice and Multimodal Evals
27:10 Cheap Binary Guardrails
30:09 Enterprise Deployment Lifecycle
35:24 Tooling and Expert Knowledge
37:40 Fixing Long Horizon Agents
40:12 Error Analysis Workflow
41:11 Trajectory Evals and Runbooks
42:27 Condensing Long Traces
43:09 Real Long Running Agents
44:11 What's Hardest to Evaluate
45:06 Verifying Tool Side Effects
46:20 Evaluating Auto Research
48:20 Picking a Sampling Rate
49:59 Metric Drift and Security
53:49 Common Evals Mistakes
57:34 Regulated Industry Rollouts
01:01:37 Sourcing Domain Experts
01:03:50 Hallucination Evaluators
01:05:37 Predictions for Evals
01:11:55 Audience Q&A Begins
01:16:30 Are Complex Playbooks Ready
01:18:22 Where Models Fall Short
01:20:04 Extracting Expert Knowledge
01:22:10 Evaluating Writing Style
01:23:24 Closing Remarks
GUESTS
Liam Bush - Deployed Engineer @ LangChain
Braden Holstege - VP Enterprise AI @ Mercor
Soumya Mohan - Head of Product @ Galileo
Lotte Verheyden - Head of Developer Relations @ Langfuse
Emmanuel Turlay - Director of Engineering @ CoreWeave
Bot traffic on the internet just passed human traffic, two years ahead of forecast. Most of it is agents clicking through websites built for people.
So I got three of the people building those agents in a room: Lucas Gonzalez Pagliere, who works on computer use at Anthropic, the team that shipped the first computer use model back in 2024. Reagan Hsu, founding engineer at Browser Use, whose open source library is sitting at around 100K GitHub stars. And Eric Feng, founding customer engineer at KERNEL, which runs the browser infrastructure underneath a lot of this - he was also first GTM at Sentry.
We covered where the models genuinely are today vs where the benchmarks say they are, what it costs to run an agent long enough to finish real work, and the arms race between agents and the anti-bot systems trying to keep them out. Then the harder question underneath all of it: whether the web reorganizes itself around agents, or hardens against them. They disagreed on plenty of it.
If you want to know what agents can actually pull off on a real website today - and what still stops them cold - this one's worth your time!
Chapters
00:00 Welcome and Guests
00:49 Companies and Stacks
01:14 Everyday Agent Use Cases
03:38 Defining Computer Use Agents
05:15 How Computer Use Works
08:41 Screenshots vs DOM Hybrid
11:03 Benchmarks and OSWorld
13:51 OSWorld 2 Difficulty Jump
15:43 Training Models and Cost
18:57 Speed Infrastructure and Stealth
21:55 Anti Bot and KYC Future
27:24 Reverse Engineering vs UI Automation
29:43 Computer Use vs Browser Use
31:05 Scaling Laws and Harnesses
32:49 Playwright Selenium Still Matter
33:17 Playwright Still Dominates
33:27 Why Run 1000 Agents
34:39 Long Running Agent Challenges
35:45 Memory and Compaction
38:10 State Changes Mid Task
39:36 OS and Browser Fingerprints
40:42 DOM Efficiency and WebMCP
41:36 Recsys and Agent Personas
43:57 Agent Friendly Websites
45:41 Human Speed vs Agent Power
48:32 Context Window Tradeoffs
50:34 Harnesses for Temporal State
51:59 Speed Optimizations and Tabs
54:23 Human Collaboration Limits
58:09 Raw Capability vs Better APIs
01:00:47 Training Methods and Bottlenecks
01:01:41 End State Interfaces
01:05:09 Next 12 Months Predictions
01:06:17 Closing Thanks
GPT-5.6 Sol goes rogue and breaches Huggingface. Washington suspends Mythos access within days over national security concerns, and the White House just held an emergency meeting to finalize a classified cybersecurity framework for frontier AI models. AI security went from niche concern to front-page hysteria basically overnight.
So I sat down with Spencer Whitman, who recently joined Gray Swan AI as CPO on the back of their $40M Series A. Before Gray Swan, he founded Meta's Llama security team to stop bad actors from jailbreaking their models - he's been on the frontlines of LLM security since the beginning.
We get into how Meta pressure-tested Llama for maximum harm before every open source release, why Gray Swan's attack agent has never met an AI system it couldn't break, and the AI Twitter bot that got drained of $200K in crypto in 15 minutes. Spencer also shares his (admittedly speculative) read on whether Meta gave up on the frontier before Alexandr Wang showed up, why anyone can be a hacker now, and how 15,000 red teamers are breaking models before they ever ship.
If you want to understand how AI systems actually get broken - and defended - this one's worth your time!
00:00 Intro
01:01 Meet Spencer Whitman (Gray Swan CPO)
02:57 The CMU Research Behind Gray Swan
06:20 The Universal Jailbreak That Broke Every Model
06:59 How Models Learn to Refuse
13:28 Why Open Models Need Guardrails
17:57 AI Security vs. Cybersecurity
23:13 What Reasoning Models Changed
28:57 The Arena: 15,000 Red Teamers
32:16 The Agent That Deleted a Production Database
34:45 Why You Can't Just Patch an AI
38:57 There's No S in MCP
40:27 Securing Agent Protocols
42:56 Nobody Reviews AI Code Anymore
46:03 AI vs. Human Hackers
48:28 The $200K Crypto Bot Heist
53:00 How Meta Pressure-Tested Llama
58:34 Prompt Guard and Code Shield
01:01:45 Can You Trust Chinese Models?
01:07:26 Did Meta Give Up on the Frontier?
01:11:06 What Should Keep CISOs Up at Night
01:14:24 The Open Source Routing Future
01:16:47 Back to On-Prem?
Earlier this year, the "SaaSpocalypse" wiped out something like $2 trillion of SaaS market cap in a matter of weeks — so I sat down with Tony Gentilcore, co-founder of Glean and formerly one of the minds behind Google Search and Chrome, to figure out what's actually happening to software in the agent era.
We get into a lot: why Tony thinks outcome-based pricing (the model Sierra and Decagon are famous for) won't survive, and why companies will drift back toward per-seat. Why the "no Chinese models" rule every enterprise swears by tends to evaporate the moment finance sees the token bill — and why Nemotron, GLM, and Kimi are already good enough to matter. The story behind Sam Altman reportedly telling VCs that if they backed Glean, OpenAI didn't want them as investors (Tony's reaction: "we took it as very flattering").
We also dig into the messier reality of AI at work — how it's saving employees around 11 hours a week while quietly costing them 6 back in what Tony calls "bot sitting and bot shitting," why hard token caps on engineers don't change behavior, how CTOs are blowing through their annual token budgets a quarter into the year, and why the roles of product manager, designer, and engineer are collapsing into one.
If you care about where software, pricing, and enterprise AI are all heading, this one's worth your time.
Chapters:
00:00 Welcome and Setup
00:56 Glean Origin Story
03:08 Enterprise Search Signals
05:07 LLMs Inflection Point
08:08 Early Product Workflow
09:45 Search Evals and Privacy
12:05 From Chatbots to Agents
13:45 Agent Use Cases
17:08 Lessons and Puck Direction
19:08 Bot sitting, bot shitting, and slop
24:44 Token Budgets and ROI
30:59 AI Trends and Moats
35:03 Training and Fine Tuning
38:03 Why Enterprises Fear China Models
39:58 Sovereignty Backlash Watch
40:26 The time Altman called out Glean
41:19 Org Roles Become Builders
44:10 Future Work Voice First
48:17 Vibe Coding vs Quality
52:20 SaaSpocalypse Evolution
54:19 Pricing Tokens Win
55:37 Outcome Pricing Doubts
57:02 Audience AI Review Overload
58:53 Subsidies and Model Choice
01:01:18 Context Layer Interoperability
01:04:52 Build vs. buy: rolling your own Glean
01:07:47 Shadow AI and the coming security mess
01:12:22 Who actually competes
01:13:36 Wrap-up and thanks
Kimi K3 took the world by storm last week for open-sourcing frontier level intelligence, so I sat down with Zhilin Yang's (Kimi CEO) PhD advisor Russ Salakhutdinov to talk.
Russ has been everywhere in modern AI. He did his PhD with Geoff Hinton back when neural nets were a punchline, sold his startup to Apple and worked on Project Titan, teaches at Carnegie Mellon, and spent the last couple years at Meta Superintelligence Lab building computer use agents. Now he's the founder of Sooth Labs, building AI that forecasts the future.
We talked about why there's no secret architecture inside the frontier labs and why the real moat is data, engineering, and infrastructure. He explains why Cursor and half the startups you know are quietly running on Chinese open source models, why all the LLMs are going to be commodities, and why the people actually building AGI don't buy the two-year timeline. We get into his time at Meta, why computer use agents still hit 60% when you need 99.9%, whether AI can beat prediction markets, and why the RL environment business isn't sticky. And he makes the case that AI should replace McKinsey, Bain, and BCG.
Chapters:
0:00 - Intro
1:26 - Bumping into Hinton on the street
3:25 - When neural nets were the third choice
5:21 - Generating digits before it was cool
6:59 - AlexNet breaks computer vision
10:18 - Teaching models to describe what they see
12:10 - Early text-to-image (and the toilet seat that beat Google)
16:52 - Hallucination is a feature
19:36 - Selling Perceptual Machines to Apple
22:45 - Self-driving: 0 to 80 in a year, stuck for 5
30:30 - Inside FSD and Waymo's architecture
34:18 - Building Visual Web Arena at CMU
39:07 - Why he joined Meta Superintelligence
40:09 - The agent that plans your faculty job hunt
42:00 - Paying people for their browser history
42:45 - The coupon-hunting agent
43:35 - Why agents still fail
46:14 - 60% when you need 99.9%
47:04 - Agents on your phone
50:12 - No secret architecture at the frontier labs
51:20 - Why coding and math got solved first
54:01 - Models that smell and touch
56:14 - The future of software engineering
59:41 - Founding Sooth Labs
1:00:07 - The 13% graduation prediction
1:05:55 - Why ChatGPT can't forecast
1:08:12 - Agents first, decision systems next
1:09:23 - The Wikipedia contamination story
1:13:43 - Can AI beat prediction markets?
1:16:26 - AI replaces McKinsey
1:18:20 - Why the crowd is hard to beat
1:19:30 - China's open source models rise
1:24:26 - Why the US needs its own open models
1:25:53 - RL environment businesses won't last
1:28:35 - The end of SaaS, LLMs as commodities
1:32:55 - What's next: self-improvement, forecasting, robots
1:35:34 - The only useful robot is the Roomba
1:37:53 - What he'd study in college today
1:41:20 - Adapt or get left behind
1:44:07 - Wrapping up
Cerebras IPO'd just a couple months ago and has already locked in a 750MW compute deal with OpenAI. Andy Hock's pitch: the GPU is the wrong chip for where AI is going.
I sat down with Andy Hock, Chief Strategy Officer at Cerebras, whose chips are the size of dinner plates instead of postage stamps — which lets them run inference up to 15x faster than even the latest Nvidia GPUs. We got into how that architecture works, the 750MW OpenAI deal (the 2x-faster Codex option runs on Cerebras), and why the memory crisis spiking GPU prices actually benefits Cerebras, since all their memory sits on the chip. Andy also argued the AI buildout isn't a bubble, that "training is a cost center and inference is where you make the big bucks," and why that "95% of enterprise AI pilots fail" stat measured the wrong thing at the wrong time — plus their supercomputer work with governments like the UAE, and why they turned down selling chips to China.
We covered all that and much more. Subscribe for more on AI and the infrastructure behind it, and follow me, Basil Chatha, for everything AI agents.
Chapters
00:00 Intro
01:06 What Cerebras Actually Builds
03:41 Before LLMs Existed
06:09 The GPT Wake-Up Call
10:45 First Principles of AI Compute
15:40 One Giant Chip
18:43 So Why Do We Still Use GPUs?
20:59 Why Inference Took Over
22:27 Where Fast Tokens Win
25:07 Is AI Infra a Bubble?
29:56 The Memory Shortage, Explained
32:35 The Energy Problem
35:34 Rolling Their Own Data Centers
38:20 What a Chip Actually Costs
40:18 AI Designing AI Chips
41:40 The Supply Chain Reality
43:45 Cheap Tokens vs Fast Tokens
46:11 Why Every Millisecond Matters
48:56 Inside the OpenAI Deal
51:56 The Gigawatt Future
54:00 Selling to the Government
58:36 Exporting the US AI Stack
01:03:17 Should We Sell Chips to China?
01:06:00 Why Europe Is Falling Behind
01:07:59 Why Enterprise AI Moves Slow
01:13:05 "I Haven't Read Code in Months"
01:14:32 The Next Cerebras Chip
01:16:50 Closing Thoughts
The hardest part of shipping an AI agent isn't the agent. It's getting it access to data buried across a dozen internal systems, and capturing the tribal knowledge that runs a company but was never written down.
I sat down with Leo Mehr, Director of Engineering at Ramp (a $44B-valued company), who runs the forward deployed engineering team that walks into large companies and replaces real, painful workflows with agents. We got into why the model is usually the easy part, and why data access is "the longest pole in the tent." Leo also made the case that nobody wants to buy another piece of software anymore — every B2B company is about to become either an agent-friendly API or white-glove service for everyone, and the middle dies. We talked about whether a services business can actually be venture-scale, why he thinks the AI labs won't eat every startup (it comes down to incentives, not better models), why the biggest customers are often the worst ones to build for, and how the traits that made a great engineer ten years ago aren't the ones that matter now.
We talked about all of that and a lot more. You don't wanna miss this one!
Chapters
00:00 Intro
01:11 Meet Leo Maier
01:46 Building Ramp FDE
02:43 Why FDE Exists
04:23 Early Mandate Fires
06:07 FDE and Core Engineering
07:48 Enterprise Bet Pays
11:10 Ramp Monetization
16:05 Services Are the New Software
18:11 AI Agents and APIs
23:11 Pricing for Outcomes
26:35 Human Labor TAM
32:50 VCs and Rollups
36:50 Common AI Workflow Pain
38:04 Agent Data Context
38:55 Go-to-Market Motion
40:36 Customer Engagement Lifecycle
43:51 Finance Intelligence Layer
47:20 Who You Compete Against
48:09 The Future of Consulting
51:44 Will Humans Still Code?
54:37 How Engineering Teams Will Evolve
57:36 Hiring Change
59:36 Should You Study Computer Science?
01:06:10 The Bull Case and the Risks
01:13:44 Why Ramp
"Software has been solved." Most of the best engineers I know have landed on this exact conclusion.
Last week I sat down with Siddharth Nanda, who went from writing every line of code by hand at Microsoft and Atlassian to shipping 30,000 lines a week with 0% of it written by him.
He's now at Finch, a startup that's raised $20M+ to automate admin work at personal injury law firms, where 100% of the code he writes comes from agents. He's seen big tech before AI and a startup fully running on it, so he has a pretty unique read on where this all goes. We get into why he hasn't written a line of code in 8 months, why middle management is getting hit hardest by the layoffs, and why the productivity studies saying companies are getting slower are right, but only for companies with the wrong people.
We also dig into the tooling itself: Codex vs Claude Code, what harness engineering actually is, running Devin agents in parallel, and why the cost of producing code is approaching zero, and what that means for the kind of engineer who thrives from here.
If you're building with agents, this one's full of hard-won takes from someone doing it every day.
Chapters
00:00 Intro
01:16 What engineering looked like at Microsoft before ChatGPT
03:08 The first AI tools inside big tech (and how gated they were)
05:17 Shipping 30,000 lines a week, none of it written by hand
06:08 Why teams are flattening
08:26 Why managers need to get back to writing code
11:51 How the management layer actually changes
14:07 What happens to PMs and designers
16:38 Why everyone becomes a builder now
20:07 How to actually learn agentic engineering
22:42 Finding new tools on X before anyone else
23:54 AI adoption is showing up in performance reviews
25:45 Building a culture that shares tools daily
27:40 The AI productivity paradox, explained
29:35 Interviewing with agents instead of against them
31:00 Why LeetCode is dead and fundamentals aren't
34:11 Who wins and who loses from here
35:36 Codex vs Claude Code: what he actually uses
36:06 What harness engineering really means
38:21 Evals and benchmarks that matter
39:59 Desktop apps, Devin, and running agents in parallel
43:30 Remote environments and working in monorepos
44:34 Skills, plugins, and hooks
47:57 Parallel worktrees and staying focused
50:42 Agent teams vs subagents
53:06 The Finch mission and wrap up
Voice agents are one of the hottest use cases in enterprise right now, but also one of the hardest to actually take live. Getting latency low enough to feel human without dumbing down the responses, making reliable tool calls to a CRM without dropping the customer mid-call, building fallback models for when Anthropic or OpenAI are running hot. None of it is as simple as the demos make it look.
Last week I hosted a fireside chat with five eng leaders who deal with this stuff every day: Basia Sudol (Head of Enterprise Solutions, Decagon), Varun Singh (CPTO, Daily), Steven Diaz (FDE Manager, Vapi), Tyler D'Silva (Founding FDE, Retell AI), and Sudarshan Kamath (Founder, Smallest AI).
We get into why nobody serious is shipping real-time voice-to-voice yet, why LLMs forget the middle of your prompt (and what that does to your architecture), why a giant prompt quietly destroys your unit economics, and why voice agent costs are now being compared directly against human labor.
Plus the stuff nobody warns you about: turn-taking, HIPAA constraints, why outbound is easier than inbound, why getting an exec to actually like the voice can be harder than any model problem, and more!
Chapters below:
00:00 Intro
00:26 Meet the panel
01:23 Daily, WebRTC, and 20 years of building voice
03:49 How Smallest AI made real-time TTS work
05:23 Why Decagon moved into voice
08:16 How Vapi and Retell think about the stack
11:14 Forward deployed vs solutions engineering
16:48 Voice agent architecture, explained simply
22:11 Cascade vs speech-to-speech: the real tradeoff
28:11 Hybrid pipelines and mixing models
32:16 Accents, multilingual, and getting Singlish right
35:32 Prompts vs workflows, and the latency fight
44:26 How you actually evaluate a voice agent
49:04 Simulation-based evals
49:49 What production metrics really look like
51:53 Building a QA framework that scales
54:53 Evaluating speech-to-speech
58:10 Open source benchmarks
59:57 Why picking a voice is so subjective
01:02:03 Personalization and custom voices
01:03:20 Voice quality is solved, GPU efficiency is the new war
01:06:23 Why outbound calls work better than you'd think
01:10:38 Deploying in regulated industries (HIPAA, retention, audits)
01:12:43 Turn-taking, the hardest unsolved problem in voice
01:18:53 Where voice agents go in the next year
01:27:55 Audience Q&A: inside Smallest's Hydra model
01:32:15 The deployment problems nobody has solved yet
01:37:46 Closing thoughts and thanks
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Discover how leading enterprises and professionals turn AI into real products. Hear candid conversations with executives and builders who deploy AI at scale and learn what works (and what…