OpenAI
AI research company behind ChatGPT and the GPT models, with APIs for text, reasoning, image, speech and voice
About OpenAI
OpenAI builds the GPT family of models and ChatGPT. In its API, GPT-6 Astra is the flagship model for complex reasoning and coding, and GPT-5.6 Sol, Terra and Luna trade intelligence against cost. It also offers GPT-Image-2.5 for image generation and editing, GPT-Transcribe for speech-to-text, and GPT-Live and GPT-Realtime models for voice. New integrations build on the Responses API; the older Assistants API was shut down on 26 August 2026.
Key Features
- GPT-6 Astra, the flagship model for complex reasoning and coding
- GPT-5.6 Sol, Terra and Luna to balance intelligence against cost
- 1.05M-token context window on the flagship models
- GPT-Image-2.5 for image generation and editing
- GPT-Transcribe and GPT-Live-Transcribe for speech-to-text
- GPT-Live and GPT-Realtime models for voice conversations
- Responses API with function calling and tool use
Use Cases
- Chatbots and conversational AI
- Content creation and copywriting
- Code generation and debugging
- Document analysis and summarization
- Creative writing and brainstorming
- Language translation
- Image generation and editing
- Voice transcription and analysis
OpenAI alternatives
Guides covering OpenAI
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Tags
- gpt
- gpt-6
- chatgpt
- language-model
- ai-api
- natural-language-processing
- text-generation
- chatbot
- image-generation
- speech-to-text
- reasoning