Releases

OpenAI will remove tts-1, tts-1-hd and two GPT-4o mini TTS snapshots from the API on January 6, 2027. The recommended replacement is gpt-realtime-2.1-mini.

OpenAI will remove gpt-image-1-mini, gpt-image-1.5 and the chatgpt-image-latest alias from the API on December 1, 2026. The recommended replacements are GPT Image 2.5 Sunburst or Flare.

OpenAI will remove gpt-3.5-turbo-0125 and gpt-4-0613 snapshot aliases from the API on October 23, 2026. The documented replacements are GPT-5.6 Terra and GPT-5.6 Sol respectively.

OpenAI began rolling out GPT-Live-1.1 for voice in ChatGPT, Codex and dots, with new voices, fewer pauses during voice interactions and improved accents in French, German, Hindi, Mexican Spanish, Korean and Japanese. API access is planned later.

OpenAI released GPT-6.1 Sol in the API as an updated workhorse model.

OpenAI added GPT-6 Sol and GPT-6 Luna to the API as capability and efficiency tiers in the GPT-6 family.

OpenAI released GPT-Image-2.5 Sunburst and Flare as a new generation of image models.

OpenAI released GPT-6 Astra, a frontier model positioned for its most demanding reasoning and agentic workloads.

OpenAI introduced GPT-5.6 Cyber for high-end defensive cybersecurity use through Daybreak.

OpenAI launched GPT-5.6 Sol, Terra, and Luna broadly across ChatGPT, Codex, and the API.

OpenAI released GPT-Live-1 and GPT-Live-1 mini for low-latency, natively multimodal voice and realtime interaction.

OpenAI began a limited preview of GPT-5.6 Sol and previewed the Terra and Luna variants.

OpenAI discontinued the standalone Sora product as its video strategy shifted to newer experiences and models.

OpenAI released GPT-5.5 and GPT-5.5 Pro as upgraded frontier models for complex knowledge work and reasoning.

OpenAI released ChatGPT Images 2.0 with stronger world knowledge, instruction following, detail, and an images-with-thinking mode.

OpenAI released GPT-5.4 mini and GPT-5.4 nano as smaller, lower-latency variants.

OpenAI released GPT-5.4 and GPT-5.4 Pro for professional work, coding, computer use, and long-context tasks.

OpenAI released a research preview of GPT-5.3-Codex-Spark, a smaller model optimized for near-real-time coding.

OpenAI released GPT-5.3-Codex, an interactive agentic coding model for complex software and professional work.

OpenAI released GPT-5.2-Codex, an agentic coding model optimized for long-horizon software engineering.

OpenAI released GPT-5.2 with improvements for professional knowledge work and long-context tasks.

OpenAI released GPT-5.1 for developers with improved coding, steerability, and agentic performance.

OpenAI released Sora 2, a video and audio generation model with improved physical realism and control.

OpenAI released GPT-5 across ChatGPT and the API, including mini, nano, and Pro variants.

OpenAI released gpt-oss-120b and gpt-oss-20b under an open-weight license.

OpenAI released o3-pro for more reliable reasoning by using additional compute.

OpenAI released its native multimodal image-generation model gpt-image-1 through the API.

OpenAI released o4-mini, a smaller reasoning model optimized for fast, cost-efficient reasoning.

OpenAI released o3, a reasoning model with strong performance across coding, mathematics, science, and visual tasks.

OpenAI released GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano in the API with improved coding and instruction following.

OpenAI launched native image generation in GPT-4o for precise, context-aware image creation and editing.

OpenAI released GPT-4.5 as a research preview in ChatGPT and the API.

OpenAI released o3-mini, a cost-efficient reasoning model optimized for science, mathematics, and coding.

OpenAI released the full o1 reasoning model in ChatGPT and announced related API improvements.

OpenAI released its first o-series reasoning models, o1-preview and o1-mini.

OpenAI released GPT-4o mini as a lower-cost small multimodal model.

OpenAI released GPT-4o, an omni model designed for real-time reasoning across audio, vision, and text.

OpenAI introduced Sora, a text-to-video model, as a research preview for red teamers and selected creators.

OpenAI released text-embedding-3-small and text-embedding-3-large with improved performance and new dimension controls.

OpenAI announced GPT-4 Turbo with a 128K context window, newer knowledge, and lower API pricing.

OpenAI made DALL-E 3 available to ChatGPT Plus and Enterprise users.

OpenAI released GPT-4, a multimodal large model accepting image and text inputs and producing text outputs.

OpenAI released text-embedding-ada-002, replacing multiple earlier embedding models with a more capable and lower-cost model.

OpenAI released Whisper, a multilingual speech-recognition model, together with model weights and inference code.

OpenAI introduced DALL-E 2 with higher-resolution image generation and editing capabilities.

OpenAI introduced instruction-following models trained with human feedback.

OpenAI introduced Codex, a descendant of GPT-3 that translates natural language into code.

OpenAI introduced CLIP, a neural network trained on image-text pairs for transferable visual recognition.

OpenAI introduced DALL-E, a model that generates images from text descriptions.

OpenAI published GPT-3, demonstrating few-shot learning at 175 billion parameters.