OpenAI Blog ● Covered by 2 sources
OpenAI released two open-weight reasoning models, gpt-oss-120b and gpt-oss-20b, licensed under Apache 2.0. The models have 120 billion and 20 billion parameters respectively. Developers can now access these models for reasoning tasks under open licensing terms.
We introduce gpt-oss-120b and gpt-oss-20b, two open-weight reasoning models available under the Apache 2.0 license and our gpt-oss usage policy.
Announcing the Availability of OpenAI's Open Models on Together AI
Together AI · 11 months ago
From GPT-2 to gpt-oss: Analyzing the Architectural Advances
Ahead of AI · 11 months ago
gpt-oss-safeguard technical report
OpenAI Blog · 8 months ago
Controlling Reasoning Effort in LLMs
Ahead of AI · 2 days ago
GPT-2: 6-month follow-up
OpenAI Blog · 6 years ago
GPT-2: 1.5B release
OpenAI Blog · 6 years ago
The daily briefing
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TLDRocket
21 July 2026
The open-weight AI model market hit an inflection point today as Alibaba and Kimi released trillion-parameter competitors that challenge the closed-model orthodoxy—just as Washington moved to restrict them. Alibaba's Qwen 3.8 Max (2.4 trillion parameters) and Kimi K3 (2.8T) are going open-weight, with K3 ranking first on Frontend Web App Arena and fourth on agentic benchmarks, signaling that scale and transparency can coexist. The timing matters: while U.S. policymakers weigh layered restrictions on Chinese open models, technical experts are pushing back hard, arguing that closed gardens actually hurt security and competition more than they help. The real fragmentation risk isn't technical—it's regulatory.
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