Wednesday, 30th July 2025
Qwen3-30B-A3B-Thinking-2507 (via) Yesterday was Qwen3-30B-A3B-Instruct-2507. Qwen are clearly committed to their new split between reasoning and non-reasoning models (a reversal from Qwen 3 in April), because today they released the new reasoning partner to yesterday's model: Qwen3-30B-A3B-Thinking-2507.
I'm surprised at how poorly this reasoning mode performs at "Generate an SVG of a pelican riding a bicycle" compared to its non-reasoning partner. The reasoning trace appears to carefully consider each component and how it should be positioned... and then the final result looks like this:
I ran this using chat.qwen.ai/?model=Qwen3-30B-A3B-2507 with the "reasoning" option selected.
I also tried the "Write an HTML and JavaScript page implementing space invaders" prompt I ran against the non-reasoning model. It did a better job in that the game works:
It's not as playable as the on I got from GLM-4.5 Air though - the invaders fire their bullets infrequently enough that the game isn't very challenging.
This model is part of a flurry of releases from Qwen over the past two 9 days. Here's my coverage of each of those:
- Qwen3-235B-A22B-Instruct-2507 - 21st July
- Qwen3-Coder-480B-A35B-Instruct - 22nd July
- Qwen3-235B-A22B-Thinking-2507 - 25th July
- Qwen3-30B-A3B-Instruct-2507 - 29th July
- Qwen3-30B-A3B-Thinking-2507 - today
Something that has become undeniable this month is that the best available open weight models now come from the Chinese AI labs.
I continue to have a lot of love for Mistral, Gemma and Llama but my feeling is that Qwen, Moonshot and Z.ai have positively smoked them over the course of July.
Here's what came out this month, with links to my notes on each one:
- Moonshot Kimi-K2-Instruct - 11th July, 1 trillion parameters
- Qwen Qwen3-235B-A22B-Instruct-2507 - 21st July, 235 billion
- Qwen Qwen3-Coder-480B-A35B-Instruct - 22nd July, 480 billion
- Qwen Qwen3-235B-A22B-Thinking-2507 - 25th July, 235 billion
- Z.ai GLM-4.5 and GLM-4.5 Air - 28th July, 355 and 106 billion
- Qwen Qwen3-30B-A3B-Instruct-2507 - 29th July, 30 billion
- Qwen Qwen3-30B-A3B-Thinking-2507 - 30th July, 30 billion
- Qwen Qwen3-Coder-30B-A3B-Instruct - 31st July, 30 billion (released after I first posted this note)
Notably absent from this list is DeepSeek, but that's only because their last model release was DeepSeek-R1-0528 back in April.
The only janky license among them is Kimi K2, which uses a non-OSI-compliant modified MIT. Qwen's models are all Apache 2 and Z.ai's are MIT.
The larger Chinese models all offer their own APIs and are increasingly available from other providers. I've been able to run versions of the Qwen 30B and GLM-4.5 Air 106B models on my own laptop.
I can't help but wonder if part of the reason for the delay in release of OpenAI's open weights model comes from a desire to be notably better than this truly impressive lineup of Chinese models.
Update August 5th 2025: The OpenAI open weight models came out and they are very impressive.
When you vibe code, you are incurring tech debt as fast as the LLM can spit it out. Which is why vibe coding is perfect for prototypes and throwaway projects: It's only legacy code if you have to maintain it! [...]
The worst possible situation is to have a non-programmer vibe code a large project that they intend to maintain. This would be the equivalent of giving a credit card to a child without first explaining the concept of debt. [...]
If you don't understand the code, your only recourse is to ask AI to fix it for you, which is like paying off credit card debt with another credit card.
— Steve Krouse, Vibe code is legacy code