OpenAI Spring Update: GPT-4o Announced, Expanded Free ChatGPT Capabilities
OpenAI announced GPT-4o, a new flagship model, alongside an expansion of capabilities available to free-tier ChatGPT users. GPT-4o represents a new omnimodal architecture capable of handling text, audio, and vision in a unified model. The announcement was made via a live demo event and marks a significant shift in OpenAI's product and model strategy.
Related guides (3)
Related events (8)
Introducing GPT-4o and More Tools to ChatGPT Free Users
OpenAI is launching GPT-4o, its newest flagship model, and expanding access to additional capabilities for free-tier ChatGPT users. This represents a significant democratization move, bringing frontier model capabilities to users without a paid subscription. The announcement signals OpenAI's strategy to broaden its user base while maintaining competitive pressure on rivals.
Hello GPT-4o
OpenAI announces GPT-4o (Omni), a new flagship multimodal model capable of reasoning across audio, vision, and text in real time. The model represents a significant step toward natively multimodal AI, processing and generating across modalities without separate pipeline stages. It is positioned as OpenAI's primary production model going forward.
GPT-4 Release
OpenAI released GPT-4, a large multimodal model accepting image and text inputs and producing text outputs. The model demonstrates human-level performance on various professional and academic benchmarks. It represents OpenAI's latest milestone in scaling deep learning.
New in ChatGPT for Business: April 2025 Updates
OpenAI published an April 2025 update for ChatGPT's business tier, highlighting four capability areas: the o3 reasoning model, image generation, enhanced memory, and internal knowledge retrieval. The announcement is framed around hands-on demos for enterprise users. This represents an incremental rollout of recently released capabilities into the business product line rather than a new model launch.
Introducing ChatGPT Pro
OpenAI announced ChatGPT Pro, a new subscription tier aimed at broadening access to frontier AI capabilities. The announcement comes from OpenAI's official blog and signals a product and pricing strategy move to expand usage of their most advanced models. Details on specific model access, pricing, and feature differentiation were not included in the provided body text.
Introducing ChatGPT Go, now available worldwide
OpenAI has launched ChatGPT Go as a new globally available subscription tier, providing access to GPT-5.2 Instant with higher usage limits and extended memory capabilities. The offering is positioned as a more affordable entry point to advanced AI features for users worldwide. This represents a new pricing and access tier in OpenAI's consumer product lineup.
Introducing ChatGPT
OpenAI announced ChatGPT, a conversational model trained to engage in dialogue, answer follow-up questions, acknowledge errors, challenge incorrect premises, and decline inappropriate requests. The model's dialogue format represented a significant step in making large language models accessible and interactive for general users. This November 2022 launch marked a pivotal moment in public AI adoption.
OpenAI Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and o4-mini from ChatGPT in February 2026
OpenAI announced that on February 13, 2026, it will retire GPT-4o, GPT-4.1, GPT-4.1 mini, and o4-mini from ChatGPT, alongside the previously announced retirement of GPT-5 variants (Instant, Thinking, and Pro). The retirements apply only to the ChatGPT product interface; API access to these models is unaffected at this time. This signals a consolidation of the ChatGPT model lineup, likely in favor of newer or more capable successors.