Stage is set: Opus 5.5 and GPT-6 are live. One view of the current landscape from us at OpenRouter below, comparing wallet share just among OAI and Anthropic models. Will be fascinating to see how these new models change the game in the coming days.

Here's how Anthropic models were being used before today's Opus 5.5 launch. Opus 5 took the most spend (~30% of all dollars that went to Ant models). It also earned 25% of tokens. Let's see how fast Opus 5.5 wins over older model share

What should we make of all the data showing the growth of inexpensive open weight tokens? 8 thoughts, all personal takes: 1) This is not a death knell for closed frontier labs by any stretch. So and so lab is “screwed” is an easy way to farm engagement, not a considered opinion. 2) It does put to bed (for now) the idea of a single company or model dominating the AI market in perpetuity. 3) This market is in its infancy. Just this week, Jev was released and the cycle of innovation surged forward. 4) Different strategies will create different winners. Understandable that the focus is on trillion-plus valuations and whether those withstand scrutiny, but other players will pursue economic value in many different ways. Some may even avoid VC funding 😅 5) Hype cycles are only vaguely correlated to impact. X is where AI signal happens but it’s also intensely crowded with noise. 6) Inertia, especially in the short-term, is underrated. Most workloads don’t move every time a new model is released. 7) Hundreds of factors outside of cost and performance matter. One of these is “vibes” which are hard to quantify. 8) This may be the fastest growing pie in the history of capitalism. Tiny slices will still be incredibly lucrative. These opinions will likely change as new data appears!

Look at the earnings revisions in 2026 and 2027. What changed? Substantially different from any point in the past decade and it correlates basically exactly with agents becoming actually valuable.

There won’t be another day where open token volume fails to beat closed tokens. The playing field has now shifted to spend. (But also keep in mind this whole market is growing super quickly)

The argument over Anthropic in the FT today a) Under pressure from OAI, open source, all fronts b) the lynchpin of the AI bull case Featuring @OpenRouter data of course :)

Betting that the concept of pareto frontier moves into other spaces beyond AI. Ya, I know ppl have shown "best places to eat for under $30" or whatever for a long time. But showing the whole range by cost (or even better how these move over time) would be cool.

Fable vs Astra, sure - but what about the 78 other models that launched last month? And the 67 models the month before that? There is a level of planned obsolescence with LLMs that is pretty rare in tech. And the pace of new models only increases.