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OpenAI Announces Imminent Launch of O3 and O4-Mini Models; GPT-5 Release Delayed

April 7, 2025 — OpenAI has unveiled plans to release two new AI models, O3 and O4-Mini, in the coming weeks, marking a strategic shift in the company's

CometAPI
AnnaAI model and API research team
Updated Aug 26, 2026 3 min read
OpenAI Announces Imminent Launch of O3 and O4-Mini Models; GPT-5 Release Delayed
Use this pattern

Make the first API call.

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_COMETAPI_KEY",
    base_url="https://api.cometapi.com/v1",
)

response = client.chat.completions.create(
    model="gpt-5-mini",
    messages=[{"role": "user", "content": "Build this workflow."}],
)

print(response.choices[0].message.content)

April 7, 2025OpenAI has unveiled plans to release two new AI models, O3 and O4-Mini, in the coming weeks, marking a strategic shift in the company’s development roadmap. Concurrently, the release of GPT-5 has been postponed to allow for further enhancements.

OpenAI

The O3 model is designed to deliver advanced reasoning capabilities, particularly in complex tasks such as mathematics and coding. However, these enhancements come with increased computational demands and associated costs. To address this, it is also introducing the O4-Mini model, a more cost-effective alternative aimed at providing efficient performance for less complex tasks.

OpenAI’s CEO, Sam Altman, emphasized the company’s commitment to refining GPT-5 to ensure it meets heightened performance standards. This decision aligns with OpenAI’s broader strategy to streamline its product offerings and integrate various AI technologies more cohesively. Altman stated that the delay would allow the company to address technical challenges and enhance the model’s capabilities.

OpenAI Announces Imminent Launch of O3 and O4-Mini Models; GPT-5 Release Delayed

In addition to product developments, OpenAI has secured a significant private funding round, raising $40 billion from investors, including a notable $30 billion from SoftBank. This infusion elevates OpenAI’s valuation to an unprecedented $300 billion, nearly doubling its value from the previous year. The funding is intended to accelerate AI research, expand computational infrastructure, and enhance tools for ChatGPT’s extensive user base.

As OpenAI prepares for the imminent launch of the O3 and O4-Mini models, the AI community and industry stakeholders are keenly observing how these developments will influence the competitive landscape and the future trajectory of artificial intelligence technologies.

Please refer to [GPT-4o API](https://www.cometapi.com/llama-4-api/) and GPT-4.5 API for integration details.

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Published on Apr 6, 2025
Last updated Aug 26, 2026
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Reviewed for clarity, source attribution and current API terminology.

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