Tag: open weight models
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Simon Willison’s Weblog: Open weight LLMs exhibit inconsistent performance across providers
Source URL: https://simonwillison.net/2025/Aug/15/inconsistent-performance/ Source: Simon Willison’s Weblog Title: Open weight LLMs exhibit inconsistent performance across providers Feedly Summary: Artificial Analysis published a new benchmark the other day, this time focusing on how an individual model – OpenAI’s gpt-oss-120b – performs across different hosted providers. The results showed some surprising differences. Here’s the one with the…
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The Register: How OpenAI used a new data type to cut inference costs by 75%
Source URL: https://www.theregister.com/2025/08/10/openai_mxfp4/ Source: The Register Title: How OpenAI used a new data type to cut inference costs by 75% Feedly Summary: Decision to use MXFP4 makes models smaller, faster, and more importantly, cheaper for everyone involved Analysis Whether or not OpenAI’s new open weights models are any good is still up for debate, but…
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Simon Willison’s Weblog: Previewing GPT-5 at OpenAI’s office
Source URL: https://simonwillison.net/2025/Aug/7/previewing-gpt-5/#atom-everything Source: Simon Willison’s Weblog Title: Previewing GPT-5 at OpenAI’s office Feedly Summary: A couple of weeks ago I was invited to OpenAI’s headquarters for a “preview event", for which I had to sign both an NDA and a video release waiver. I suspected it might relate to either GPT-5 or the OpenAI…
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AWS News Blog: OpenAI open weight models now available on AWS
Source URL: https://aws.amazon.com/blogs/aws/openai-open-weight-models-now-available-on-aws/ Source: AWS News Blog Title: OpenAI open weight models now available on AWS Feedly Summary: AWS continues to expand access to the most advanced foundation models with OpenAI open weight models now available in Amazon Bedrock and Amazon SageMaker JumpStart. Accessing these new models from OpenAI on AWS, gpt-oss-120b and gpt-oss-20b, gives…
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Simon Willison’s Weblog: OpenAI’s new open weight (Apache 2) models are really good
Source URL: https://simonwillison.net/2025/Aug/5/gpt-oss/ Source: Simon Willison’s Weblog Title: OpenAI’s new open weight (Apache 2) models are really good Feedly Summary: The long promised OpenAI open weight models are here, and they are very impressive. They’re available under proper open source licenses – Apache 2.0 – and come in two sizes, 120B and 20B. OpenAI’s own…
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Simon Willison’s Weblog: The best available open weight LLMs now come from China
Source URL: https://simonwillison.net/2025/Jul/30/chinese-models/ Source: Simon Willison’s Weblog Title: The best available open weight LLMs now come from China Feedly Summary: 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…
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Simon Willison’s Weblog: GLM-4.5: Reasoning, Coding, and Agentic Abililties
Source URL: https://simonwillison.net/2025/Jul/28/glm-45/#atom-everything Source: Simon Willison’s Weblog Title: GLM-4.5: Reasoning, Coding, and Agentic Abililties Feedly Summary: GLM-4.5: Reasoning, Coding, and Agentic Abililties Another day, another significant new open weight model release from a Chinese frontier AI lab. This time it’s Z.ai – who rebranded (at least in English) from Zhipu AI a few months ago.…
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Simon Willison’s Weblog: Vision Language Models (Better, Faster, Stronger)
Source URL: https://simonwillison.net/2025/May/13/vision-language-models/#atom-everything Source: Simon Willison’s Weblog Title: Vision Language Models (Better, Faster, Stronger) Feedly Summary: Vision Language Models (Better, Faster, Stronger) Extremely useful review of the last year in vision and multi-modal LLMs. So much has happened! I’m particularly excited about the range of small open weight vision models that are now available. Models…
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Simon Willison’s Weblog: What people get wrong about the leading Chinese open models: Adoption and censorship
Source URL: https://simonwillison.net/2025/May/6/what-people-get-wrong-about-the-leading-chinese-models/#atom-everything Source: Simon Willison’s Weblog Title: What people get wrong about the leading Chinese open models: Adoption and censorship Feedly Summary: What people get wrong about the leading Chinese open models: Adoption and censorship While I’ve been enjoying trying out Alibaba’s Qwen 3 a lot recently, Nathan Lambert focuses on the elephant in…
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Simon Willison’s Weblog: Qwen 3 offers a case study in how to effectively release a model
Source URL: https://simonwillison.net/2025/Apr/29/qwen-3/ Source: Simon Willison’s Weblog Title: Qwen 3 offers a case study in how to effectively release a model Feedly Summary: Alibaba’s Qwen team released the hotly anticipated Qwen 3 model family today. The Qwen models are already some of the best open weight models – Apache 2.0 licensed and with a variety…