GPT-4o mini: advancing cost-efficient intelligence
OpenAI announced GPT-4o mini, a smaller and more cost-efficient version of GPT-4o, targeting applications that require lower latency and reduced inference costs. The model is positioned to outperform competing small models on key benchmarks while maintaining multimodal capabilities. It replaces GPT-3.5 Turbo as OpenAI's recommended entry-level model for cost-sensitive deployments.
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Introducing GPT-5.4 mini and nano
OpenAI has released GPT-5.4 mini and nano, smaller and faster variants of GPT-5.4 optimized for coding, tool use, multimodal reasoning, and high-volume API and sub-agent workloads. These models are positioned for efficiency-sensitive deployment scenarios including agentic pipelines. The release extends the GPT-5.4 family with tiered model options targeting different cost and latency tradeoffs.
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.
Introducing GPT-4.1 in the API
OpenAI is releasing GPT-4.1, a new family of models available via API to developers worldwide, featuring improvements in coding, instruction following, and long-context understanding. The release also includes GPT-4.1 nano, OpenAI's first nano-scale model. The models are positioned as developer-facing API products rather than consumer-facing releases.
Fine-tuning now available for GPT-4o
OpenAI has launched fine-tuning support for GPT-4o, its flagship multimodal model, as of August 20, 2024. This allows developers to customize GPT-4o on their own datasets via the OpenAI API. The release extends the fine-tuning capability previously available on GPT-3.5 and GPT-4 to the most capable model in OpenAI's lineup, enabling task-specific optimization at the frontier.
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.
Introducing GPT-5.4
OpenAI has released GPT-5.4, described as their most capable and efficient frontier model targeting professional work. The model features state-of-the-art coding, computer use, and tool search capabilities, along with a 1 million token context window. This represents a significant capability and efficiency advancement over prior GPT-5 series models.
OpenAI o1-mini: Cost-Efficient Reasoning Model
OpenAI announced o1-mini, a smaller and more cost-efficient variant of its o1 reasoning model series. The release targets use cases where reasoning capability is needed at lower inference cost. This follows the broader o1 launch and represents OpenAI's effort to make chain-of-thought reasoning models accessible at different price points.
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.