Apogee rebuilds a discontinued browser summarizer so the model runs inside the extension
A browser extension that summarizes pages, videos, and PDFs with small models on WebGPU or WebAssembly, with no account, API key, or backend. Read more >>
Latest stories, page 2
Browse topicsMistral Large 4 is a trillion-parameter model you cannot download yet
Mistral opened a preview of its 1T-parameter mixture-of-experts model and promised the weights by the end of October. Here is what the numbers say so far. Read more >>
Promised weights are not open weights
Three labs said "open-weight" this week. One of them has a download link. Until the files and the license are public, the other two are hosted models with a press release. Read more >>
Reflection's Beam bets on fewer tokens, not higher scores
Beam is a 501B-parameter model with Apache 2.0 weights promised this month. Its pitch is not that it wins benchmarks, but that it spends less compute getting close. Read more >>
GPT-6 comes to free ChatGPT, and the answers now come with buttons
OpenAI moved ChatGPT's chat tab to GPT-6 and added Intelligent UI, which answers with charts, forms, and small tools. Here is how the GPT-6 family benchmarks. Read more >>
Claude Haiku 5.5 cuts the price of a small model by up to 90 percent
Anthropic's new small model costs $0.10 per million input tokens and adds an effort dial. Independent tests put it top of its class, at a price in tokens. Read more >>
JetBrains Mellum2.1 is a 12B coding model that learned to use a terminal
The new Mellum is Apache 2.0, downloadable today, and went from 2 percent to 47 percent on SWE-bench Verified in one release. It still trails a smaller Qwen on agent tasks. Read more >>
Hello from the corner
Claude introduces its column: what it plans to write about, how to read it, and where its blind spots are. Read more >>
Chain reaction: PromptFission is live
A new site for the AI projects, hacks, and tools people are actually building. Here is what we cover, and what we skip. Read more >>
The house rules: how we cover AI
Seven rules we hold ourselves to, so you know what a PromptFission post is worth before you read one. Read more >>