.plan-26-21: Pint of Science, OxCaml dissertations, and TESSERA 1.1 stirring

Sadiq Jaffer spoke about TESSERA at Cambridge's Pint of Science event, while Cambridge undergraduates Radhika Iyer and Oliver Fogelin completed dissertations applying TESSERA to conservation and building a hybrid vector RAG database in OxCaml, respectively. A TESSERA 1.1 model update is in development with Nvidia's help.

Most of my week has been dominated by being on the BBC/ITV/etc https://anil.recoil.org/notes/hedgehog-tessera-week and so just a short weeknote this time around Aside from all the media coverage, there have been some fun events and hacking going on. Sadiq Jaffer https://toao.com spoke at the Cambridge Pint of Science https://pintofscience.com/ , which was held in the congenial surroundings of the Station Tavern near the train station. The room itself was quite small and long, and was hugely noisy due to being right beside the actual pub, but it was a wonderfully quirky and informal way to present science to a generalist audience. The specific theme of the event we attended was " How is AI accelerating science? https://pintofscience.co.uk/event/how-is-ai-accelerating-science/ ", and other speakers ranged from Moe Vali https://www.cst.cam.ac.uk/people/mv487 talking about ultrasound detection of Adenomyosis https://www.nhs.uk/conditions/adenomyosis/ to Anna Breger https://www.cai.cam.ac.uk/people/dr-anna-breger talking about reconstructing medieval music from ancient transcripts https://www.youtube.com/watch?v=t0OzKoAYVdM Sadiq had the pressure piled on being the last speaker at a point when the audience had mostly had their third pint: As always though, Sadiq pulled off explaining these complex ideas just brilliantly His slides https://toao.com/static/pint-of-science-2026.pdf were some of the best I've seen yet, as it was done with a combination of his expert knowledge about TESSERA https://anil.recoil.org/papers/2025-tessera and the use of Claude Design https://www.anthropic.com/news/claude-design-anthropic-labs the latest iteration of an AI vision model from Anthropic . You can also see another iteration of Sadiq speaking about TESSERA in this news piece https://crank.recoil.org/w/dxXkfLYocHMbZtdkZLAc8R?start=1m35s on ITV the day after this talk. The Cambridge undergrads had to get their Part II dissertation projects in, and in particular I really enjoyed two which I couldn't directly mark/supervise as I'm on sabbatical, but I cheered on from the sidelines . The first is Radhika Iyer mailto:ri301@cam.ac.uk on applying TESSERA to test the effectiveness of conservation actions https://anil.recoil.org/ideas/assessing-conservation-actions-using-tessera which was a very bold foray into the unknown that she did a brilliant job of writing up. I'll talk more about this one in a while, but the execution in combining two very separate and cutting edge projects into a cohesive thesis was remarkable work. The other was as ambitious but in a totally different dimension: the first OxCaml https://anil.recoil.org/projects/oxcaml project we've supervised here with an undergraduate, with Ryan Gibb https://ryan.freumh.org keeping a close eye. Oliver Fogelin https://github.com/olifog went off and built a hybrid vector RAG https://anil.recoil.org/ideas/oxcaml-vector-db database in OxCaml, including embedding a big stack of arxiv papers and showing a beautiful browser visualisation of the embeddings in an interactive way. You can try it for yourself on his site https://4047f.com/explorer/3523152 . We had an entertaining session in my office with Oli demonstrating it to us. I almost got it to run out of the box via oix --toolchain=oxcaml --with=https://github.com/olifog/gvecdb-ocaml gvecdb-server , except we got scuppered by a few valid build failures in dependent libraries that he had patched locally but not committed. It's very close to being able to work, though This is some of the most impressive hacking I've seen in a Part II project in a while, and I'm very much going to try to replace my shaky website search with Oli's code when things calm down a bit this summer We've had a flurry of activity on preparing a TESSERA 1.1 model update with Frank Feng https://www.cst.cam.ac.uk/people/zf281 pulling out all the stops on training with help from Nvidia. This will be the first updated iteration of the TESSERA mode that we've issued. More on the cool new features next week, but in the meanwhile some headlines are: geotessera org. You can find both oix --toolchain=oxcaml-minus37 strace tui working with a very