KEY FACTS: OpenAI is set to release its first open-weight language model since GPT-2 in 2019. This new model, slated for release in the coming months, will feature advanced reasoning capabilities and marks a shift toward greater collaboration with developers, from whom OpenAI is actively seeking input through upcoming events starting in San Francisco and expanding to Europe and Asia-Pacific. While specifics like the model’s name and size remain undisclosed, its open-weight framework aims to empower developers and institutions to adapt it for diverse applications amidst a $40 billion funding round valuing OpenAI at $300 billion and a planned transition to a for-profit structure.

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Source: Sam Altman/X

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OpenAI Set to Release First Open-Weight Language Model Since GPT-2

OpenAI, the artificial intelligence powerhouse behind ChatGPT is set to release its first open-weight language model since GPT-2 in 2019. The development was announced by CEO Sam Altman in a detailed update on X on March 31, stating that the forthcoming model promises to bring advanced reasoning capabilities to the table, marking a notable shift in the company’s approach to sharing its technology with the developer community. With a release expected in the coming months, OpenAI is now actively seeking input from developers to ensure the model meets the needs of its diverse user base.

TL;DR: we are excited to release a powerful new open-weight language model with reasoning in the coming months, and we want to talk to devs about how to make it maximally useful: https://openai.com/open-model-feedback
Source

OpenAI has largely kept its most advanced models proprietary in recent years, focusing instead on commercial applications and closed-system deployments. Altman’s post hinted at a strategic pivot, emphasizing that while the idea of releasing an open-weight model has been under consideration for some time, other priorities had previously taken precedence.

The new model, described as a “powerful new open-weight language model with reasoning,” will be the first of its kind from OpenAI since GPT-2, a model that was made publicly available in 2019 and became a cornerstone for researchers and developers experimenting with natural language processing. Unlike fully open-source models, an open-weight model provides access to the trained parameters, that is, the "weights" that define how the model processes data, while potentially retaining some control over the underlying code or training data. This approach allows developers to adapt and deploy the model for their purposes while still aligning with OpenAI’s mission to advance AI research responsibly.

Altman underscored the company’s intent to engage with the developer community ahead of the release, noting that OpenAI is eager to gather feedback on “how to make it maximally useful.” To facilitate this dialogue, the company plans to host a series of developer events, kicking off in San Francisco in the next few weeks. Subsequent sessions are slated for Europe and the Asia-Pacific region. Altman hinted at the model’s potential to serve both grassroots innovators and institutional heavyweights. He said:

“We’re excited to see what developers build and how large companies and governments use it where they prefer to run a model themselves,”

This development comes amid a rapidly evolving and competition AI ecosystem with key players like Google and Meta, as well as China’s DeepSeek, which has disrupted the industry with cost-effective, high-performing models. OpenAI’s decision to release an open-weight model could be seen as a response to these pressures, as well as a nod to growing calls for greater transparency and accessibility in AI development. The company’s earlier GPT-2 release, for instance, spurred a wave of innovation, enabling developers to build everything from chatbots to text generators, and Altman appears keen to recapture that spirit of collaboration.

Just days prior, reports emerged that the company is nearing the completion of a $40 billion funding round led by SoftBank Group, valuing OpenAI at an eye-watering $300 billion. This infusion of capital, coupled with a planned transition from a nonprofit to a for-profit entity by year’s end, shows the company’s ambitions to scale its operations and maintain its edge in the AI race. The release of an open-weight model could serve as a bridge between these commercial goals and OpenAI’s foundational commitment to advancing the collective understanding of AI.

While specifics about the new model remain scarce as Altman did not disclose its name, size, or precise capabilities, the emphasis on “reasoning” suggests it will go beyond simple text generation to tackle more complex problem-solving tasks. This could position it as a direct competitor to models like Meta’s LLaMA or DeepSeek’s R-1, both of which have gained traction for their efficiency and adaptability. Altman’s mention of developer feedback also implies that OpenAI is still refining the model’s design, potentially tailoring it to address real-world challenges identified by its user base.

For industry observers, the announcement raises intriguing questions about OpenAI’s long-term strategy. Releasing an open-weight model could democratize access to cutting-edge AI, potentially accelerating innovation across sectors. At the same time, it may invite scrutiny from critics who argue that such releases could amplify risks like misuse or unintended consequences—a concern that has dogged the AI field since GPT-2’s debut. OpenAI has yet to clarify what safeguards, if any, will accompany the model’s release, though Altman’s track record suggests a cautious approach to balancing openness with responsibility.

As the AI community awaits further details, the buzz around OpenAI’s forthcoming release is palpable. Developers, businesses, and governments alike are eager to see how this model will stack up against its predecessors and rivals. With a timeline of “coming months,” speculation is already mounting about a summer unveiling to coincide with Altman’s earlier comments about shipping GPT-4.5 and GPT-5 in the near future.

For now, OpenAI’s message is clear: after years of focusing inward, the company is ready to open its doors, at least partway, and invite the world to help shape the future of AI.

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Information Sources:

• Sam Altman/X
• Openai
• Cointelegraph

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