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.
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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.
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 for Developers via OpenAI API
OpenAI is releasing GPT-5 through its API platform, targeting developers with high reasoning performance and new developer controls. The model is positioned as best-in-class on real coding tasks. This marks the public API availability of GPT-5 following its earlier consumer rollout.
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.
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-5.1 for developers
OpenAI has released GPT-5.1 via API, positioned as an upgrade to GPT-5 with faster adaptive reasoning and improved coding performance. The release introduces new developer-facing tools including apply_patch and shell, along with extended prompt caching support. The announcement targets developers building on the OpenAI API platform.
Introducing GPT-5.2
OpenAI has released GPT-5.2, described as their most advanced frontier model for professional use, featuring state-of-the-art reasoning, long-context understanding, coding, and vision capabilities. The model is available through ChatGPT and the OpenAI API. It is positioned to support faster and more reliable agentic workflows.
GPT-4 API General Availability and Completions API Deprecation Plan
OpenAI has announced general availability of the GPT-4 API, alongside GPT-3.5 Turbo, DALL·E, and Whisper APIs. Concurrently, OpenAI is releasing a deprecation plan for older models in the Completions API, which are set to retire at the beginning of 2024. This marks a significant milestone in OpenAI's API product lifecycle, transitioning GPT-4 from limited access to broad developer availability.