How to deploy gpt-oss-120b and gpt-oss-20b chat apps in a few clicks pic.twitter.com/gi2cw5SvIu
— AK (@_akhaliq) 5 août 2025
How to deploy gpt-oss-120b and gpt-oss-20b chat apps in a few clicks
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How to deploy gpt-oss-120b and gpt-oss-20b chat apps in a few clicks pic.twitter.com/gi2cw5SvIu
— AK (@_akhaliq) 5 août 2025
How to deploy gpt-oss-120b and gpt-oss-20b chat apps in a few clicks

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Equip your agent with different subsets of tools throughout a run with dynamic tool selection in LangGraph!

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What’s absolutely amazing to me is the size of these models:
• gpt-oss-120b runs on a high-end MacBook or on a single H100.
• gpt-oss-20b runs on consumer hardware. And yet, their evals are remarkable! Matching or exceeding o4-mini and o3-mini respectively in core benchmarks.
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Partnering with @huggingface has been incredible. We also worked with @ollama
, @lmstudio
, @vllm_project
, so you can run models locally with your favorite tool on day one, and with many cloud and hardware partners so you can deploy it efficiently anywhere.
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We learned how much features like agentic tool use and Structured Outputs matter to you. But also that one size wouldn’t fit all. That’s why we built two models, each designed for different needs and hardware, and applied our most rigorous safety testing.

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From the start, we wanted to make these open models maximally useful for developers. So instead of guessing, we asked the developer community, hosting listening sessions in SF and online around the world to hear what was most important to you.
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Today’s a big day! We have something really exciting to share with the open-source community.
— Romain Huet (@romainhuet) 5 août 2025
We’re launching two open-weight language models: gpt-oss-120b and gpt-oss-20b.
They’re incredible models, built for developers, trained for reasoning, efficiency, and real-world use.🧵 pic.twitter.com/ra5LsPgbGL
Today’s a big day! We have something really exciting to share with the open-source community. We’re launching two open-weight language models: gpt-oss-120b and gpt-oss-20b. They’re incredible models, built for developers, trained for reasoning, efficiency, and real-world use.

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OPEN-SOURCE MODELS FROM OPENAI! OpenAI has remembered where the 'open' part came from and has just released its new reasoning models designed to perform agentic tasks > A 20B model for PCs and laptops
> A 120B model for data centers and high-end PCs Let me tell you all
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Looks like @lmstudio were a launch partner and have their own official GGUF release up here:

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BREAKING : GPT-5 release date confirmed to be August 7 by flowith! Gemini 3.0 Flash has been teased as well but “not this week”! x.com/flowith/status…