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The last six months in LLMs in five minutes

I put together these annotated slides from my five minute lightning talk at PyCon US 2026, using the latest iteration of my annotated presentation tool . # I presented this lightning talk at PyCon US 2026, attempting to summarize the last six months of developments in LLMs in five minutes. # Six months is a pretty convenient time period to cover, because it captures what I've been calling the November 2025 inflection point . November was a critical month in LLMs, especially for coding. # For one thing, the supposedly "best" model (depending mostly on vibes) changed hands five times between the three big providers. # As always, I'm using my Generate an SVG of a pelican riding a bicycle test to help illustrate the differences between the models. Why this test? Because pelicans are hard to draw, bicycles are hard to draw, pelicans can't ride bicycles ... and there's zero chance any AI lab would train a model for such a ridiculous task. # At the start of November the widely acknowledged "best" model was Claude Sonnet 4.5, released on 29th September . It drew me this pelican. In November it was overtaken by GPT-5.1 , then Gemini 3 , then GPT-5.1 Codex Max , and then Anthropic took the crown back again with Claude Opus 4.5 . I think Gemini 3 drew the best pelican out of this lot, but pelicans aren't everything. Most practitioners will agree that Opus 4.5 held the crown for the next couple of months. # It took a little while for this to become clear, but the real news from November