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Source Archive

simonwillison.net

simonwillison.net
315 articles
2026-03-06
Simon Willison's Weblog related

GPT-5.4 is available in Pro and Thinking versions; its API version has improved tool calling and will be available with context windows of up to 1M tokens

Russell Brandom /TechCrunch:

Simon Willison's Weblog related

OpenAI launches GPT-5.4, saying it is its “most capable and efficient frontier model for professional work” and its first with native computer use capabilities

The latest model comes with native computer use capabilities, allowing it to take on jobs across your device and applications.

2026-03-05
Simon Willison's Weblog related

Staff memo: Alibaba says it is setting up a new task force to accelerate foundation model development, after the resignation of its Qwen AI head Lin Junyang

Alibaba Group Holding Ltd (9988.HK) said on Thursday it would set up a new task force to accelerate foundation model development …

2026-03-04
Simon Willison's Weblog related

Junyang Lin, a tech lead on Alibaba's Qwen team, abruptly steps down, and two other team members leave; one contributor says “I know leaving wasn't your choice”

Alibaba's Qwen AI project has lost one of its most visible technical leaders just a day after the Chinese tech giant unveiled its new Qwen 3.5 open-weight small models.

2026-03-02
Simon Willison's Weblog related

Anthropic launches a tool to bring a user's preferences and context from other AI platforms to Claude with one copy-paste command, available on all paid plans

Bring your preferences and context from other AI providers to Claude.  With one copy-paste, Claude updates its memory and picks up right where you left off.

2026-02-25
Simon Willison's Weblog related

Anthropic starts rolling out Remote Control for Claude Code, letting users control a session begun in the terminal from the Claude mobile app or the web

New in Claude Code: Remote Control. Kick off a task in your terminal and pick it up from your phone while you take a walk or join a meeting. Claude keeps running on your machine, and you can control t...

2026-02-22
Simon Willison's Weblog related

NanoClaw and other “claws”, smaller OpenClaw-like systems that can run on personal hardware, form a new layer running on top of agents that run on LLMs

2026-02-21
Simon Willison's Weblog related

NanoClaw and other “claws”, smaller OpenClaw-like systems that can run on personal hardware, form a new layer running on top of agents that run on LLMs

Bought a new Mac mini to properly tinker with claws over the weekend. The apple store person told me they are selling like hotcakes and everyone is confused :) I'm definitely a bit sus'd to run OpenCl...

2026-02-20
Simon Willison's Weblog related

Google rolls out Gemini 3.1 Pro, which it says is “a step forward in core reasoning”, for all users in the Gemini app; the .1 increment is a first for Google

In November, Google introduced Gemini 3 Pro in preview, with Gemini 3 Flash following a month later.

2026-02-19
Simon Willison's Weblog related

Google rolls out Gemini 3.1 Pro, which it says is “a step forward in core reasoning”, for all users in the Gemini app; the .1 increment is a first for Google

In November, Google introduced Gemini 3 Pro in preview, with Gemini 3 Flash following a month later.

2026-02-18
Simon Willison's Weblog related

Anthropic launches Claude Sonnet 4.6 with improvements in coding, computer use, instruction following, and more; it features a 1M token context window in beta

Claude Sonnet 4.6 is our most capable Sonnet model yet.  It's a full upgrade of the model's skills across coding, computer use …

2026-02-17
Simon Willison's Weblog related

Alibaba debuts Qwen3.5, a 397B-parameter open-weight multimodal AI model that it says is 60% cheaper to use and 8x better at large workloads than Qwen3

2026-02-16
Simon Willison's Weblog related

As AI and agents are adopted to accelerate development, cognitive load and cognitive debt are likely to become bigger threats to developers than technical debt

2026-02-15
Simon Willison's Weblog related

As AI and agents are adopted to accelerate development, cognitive load and cognitive debt are likely to become bigger threats to developers than technical debt

The term technical debt is often used to refer to the accumulation of design or implementation choices that later make the software harder …

Simon Willison's Weblog related

A matplotlib maintainer explains how an AI agent that suggests code changes on open source repos wrote a hit piece on him after a rejection, and the aftermath

Context: An AI agent of unknown ownership autonomously wrote and published a personalized hit piece about me after I rejected its code …

2026-02-14
Simon Willison's Weblog related

OpenAI debuts a research preview of GPT-5.3-Codex-Spark, a smaller version of GPT-5.3-Codex that it claims generates code 15 times faster, for ChatGPT Pro users

Simon Willison's Weblog related

A matplotlib maintainer explains how an AI agent that suggests code changes on open source repos wrote a hit piece on him after a rejection, and the aftermath

Context: An AI agent of unknown ownership autonomously wrote and published a personalized hit piece about me after I rejected its code …

2026-02-13
Simon Willison's Weblog related

Google updates Gemini 3 Deep Think to better solve modern science, research, and engineering challenges and expands it via the Gemini API to some researchers

Our most specialized reasoning mode is now updated to solve modern science, research and engineering challenges.

Simon Willison's Weblog related

OpenAI says GPT-5.3-Codex-Spark is its first AI model that runs on Cerebras chips, after they signed a $10B+ deal in January; Codex has 1M+ weekly active users

at 1,000 tokens/s. [video]@openaidevs:Introducing GPT-5.3-Codex-Spark, our ultra-fast model purpose built for real-time coding. We're rolling it out as a research preview for ChatGPT Pro users in the ...

Simon Willison's Weblog related

OpenAI debuts a research preview of GPT-5.3-Codex-Spark, a smaller version of GPT-5.3-Codex that it claims generates code 15 times faster, for ChatGPT Pro users

ZDNET's key takeaways  — OpenAI targets “conversational” coding, not slow batch-style agents.  — Big latency wins: 80% faster roundtrip, 50% faster time-to-first-token.