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The last 3 years saw tons of "custom agent harnesses" come up, only for them to be superseded by the next generation of frontier models, which could do the same (and more) in their generic harness. So, what will you sell when Opus 6.0 swallows Mo's edge in 5 months from now? And probably cheaper, when using a Claude subscription instead of paying API prices.

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Hiya, I'm one of the co-founders at Momentic. I would actually push back against that take, we work with frontier labs a ton and this year we've actually seen a lot of realization on their part that custom harnesses matter. E.g. you could argue Devin is just a frontier model wrapper and yet it does feel better and is super popular. Same with code review tooling -- afaik everyone on https://codereview.withmartian.com/ mostly uses off-the-shelf models and yet it's the architecture, durable context (knowledge base), and data they have that gives them an edge. IMO opus 6 would probably just unlock more capabilities for Mo rather than eroding the edge.

Let's hope this is how it will play out. I wish you the best of luck!

thanks!

how is that not benchmaxxing + better prompting

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