{"slug": "openai-releases-gpt-astra", "title": "OpenAI Releases GPT Astra", "summary": "OpenAI has released GPT Astra, a new model family including GPT-5.6 Sol, GPT-5.6 Terra, and GPT-5.6 Luna, designed for complex reasoning, balanced intelligence and cost, and cost-sensitive high-volume workloads, respectively. The models support text and image input, text output, multilingual capabilities, and vision, and are available via the Responses API and Client SDKs.", "body_md": "# Models\n\n## Choosing a model\n\nIf you're not sure where to start, use [GPT-5.6 Sol](/api/docs/models/gpt-5.6-sol), our flagship model for complex reasoning and coding. Choose [GPT-5.6 Terra](/api/docs/models/gpt-5.6-terra) to balance intelligence and cost, or [GPT-5.6 Luna](/api/docs/models/gpt-5.6-luna) for cost-sensitive, high-volume workloads.\n\nAll latest OpenAI models support text and image input, text output, multilingual capabilities, and vision. Models are available via the [Responses API](/api/docs/api-reference/responses) and our [Client SDKs](/api/docs/libraries).\n\n## Flagship models\n\nStart with GPT-5.6 Sol for complex reasoning and coding, choose GPT-5.6 Terra to balance intelligence and cost, or use GPT-5.6 Luna for cost-sensitive, high-volume workloads.\n\n## Specialized models\n\nPurpose-built for specific tasks.\n\nOpenAI Daybreak\n\nAdvanced cyber models for defenders\n\nGPT-5.6 Cyber\n\nOur most advanced cybersecurity model for authorized vulnerability research and security testing.\n\nDaybreak Red\n\nAn alias for advanced cybersecurity models for authorized vulnerability research and security testing.\n\nDaybreak Blue\n\nAn alias for flagship general-purpose models with safeguards for defensive cybersecurity work.\n\nImage\n\nModels for image generation and editing\n\nRealtime\n\nModels for realtime speech and translation\n\nGPT-Realtime-2.1\n\nReasoning model with tool use\n\nGPT-Realtime-2.1 Mini\n\nReasoning model with tool use\n\nGPT-Realtime-2\n\nReasoning model with tool use\n\nGPT-Realtime-Translate\n\nStreaming speech-to-speech translation model\n\nGPT-Realtime-1.5\n\nThe best voice model for audio in, audio out\n\nGPT-Realtime Mini\n\nDeprecated\n\nA cost-efficient version of GPT-Realtime\n\nSpeech generation\n\nModels for generating natural-sounding speech from text\n\nTranscription\n\nModels for transcribing speech into text\n\nGPT-Transcribe\n\nHigh-accuracy speech-to-text model for file and Realtime input transcription\n\nGPT-Live-Transcribe\n\nLow-latency speech-to-text model for realtime transcription\n\nGPT-Realtime-Whisper\n\nStreaming speech-to-text model for realtime transcription\n\nGPT-4o Transcribe\n\nSpeech-to-text model powered by GPT-4o\n\nGPT-4o Mini Transcribe\n\nSpeech-to-text model powered by GPT-4o Mini\n\n## Browse our full catalog of models\n\nDiverse models for a variety of tasks", "url": "https://wpnews.pro/news/openai-releases-gpt-astra", "canonical_source": "https://developers.openai.com/api/docs/models", "published_at": "2026-09-03 15:09:14+00:00", "updated_at": "2026-09-03 15:23:15.649032+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-products", "ai-tools"], "entities": ["OpenAI", "GPT Astra", "GPT-5.6 Sol", "GPT-5.6 Terra", "GPT-5.6 Luna", "Responses API", "Client SDKs"], "alternates": {"html": "https://wpnews.pro/news/openai-releases-gpt-astra", "markdown": "https://wpnews.pro/news/openai-releases-gpt-astra.md", "text": "https://wpnews.pro/news/openai-releases-gpt-astra.txt", "jsonld": "https://wpnews.pro/news/openai-releases-gpt-astra.jsonld"}}