"It seems incredibly concentrated on OpenAI to the detriment of anything else."

My most recent posts:

- https://simonwillison.net/2025/Sep/7/ai-mode/ - Google/Gemini

- https://simonwillison.net/2025/Sep/6/research-goblin/ - OpenAI/GPT-5

- https://simonwillison.net/2025/Sep/6/kimi-k2-instruct-0905/ - Moonshot/Kimi/Groq

- https://simonwillison.net/2025/Sep/6/anthropic-settlement/ - Anthropic (legal settlement)

- https://simonwillison.net/2025/Sep/4/embedding-gemma/ - Google/Gemma

So far in 2025: 106 posts tagged OpenAI, 78 tagged Claude, 58 tagged Gemini, 55 tagged ai-in-china (which includes DeepSeek and Qwen and suchlike.)

I think I'm balancing the vendors pretty well, personally. I'm particularly proud of my coverage of significant model releases - this tag has 140 posts now! https://simonwillison.net/tags/llm-release/

OpenAI did get a lot of attention from me over the last six weeks thanks to the combination of gpt-oss and GPT-5.

I do regret not having written about Nano Banana yet, I've been trying to find a good angle on it that hasn't already been covered to death.

> I think I'm balancing the vendors pretty well, personally.

You are. Pretty much my main source these days to get a filtered down, generalist/pragmatic view on use of LLMs in software dev. I'm stumped as to what the person above you is talking about.

OT: maybe I missed this but is the Substack new and any reason (besides visibility) you're launching newsletters there vs. on your wonderful site? :)

I used to read and love your blog, but recently I've noticed a bias towards OpenAI since you were involved with the ChatGPT-5 prerelease.

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