Simon Willison’s Weblog·1 month ago·
22
● 3 sources
The llm-anthropic plugin released version 0.27 to provide LLM access to Anthropic’s Claude models. The update was published on 24th August 2026 and mainly adds compatibility with Anthropic’s v1.0.0 Python library by switching from httpx to httpx2. This changes the integration path by aligning the plugin with the new SDK and requiring the related upgrade/migration steps for tests to pass.
Generalist AI released GEN-1.5, a robot foundation model that can learn a new physical manipulation task from a single short demo using one-shot in-context prompting. Dropping 3–12 seconds of sensorimotor data into a 30-second context window produced an average 59% success rate across 10 tasks. The company reports that adding 10 gradient steps on about five minutes of data per task raises success to 83%, but the release remains a research-only signal with no public weights, API, or self-serve product.
Thomson Reuters launched Thomson, a proprietary large language model built for legal work and deployed first in CoCounsel Legal AI’s Tabular Analysis. The company spent about $40 million over two years, with the final training run costing about $450,000. The model becomes the default for Tabular Analysis while CoCounsel can still switch between Thomson and third-party frontier models, and Thomson Reuters plans wider testing and a smaller open-weight release.
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