{"event":{"id":"evt-gpt4turbo-20231106","dedupe_key":"multimodal_model_platform_release:2023-11-06:openai-launches-gpt-4-turbo-and-multimodal-developer-apis","event_type":"multimodal_model_platform_release","title":"OpenAI launches GPT-4 Turbo and multimodal developer APIs","summary":"OpenAI launched GPT-4 Turbo preview with 128K context, improved function calling, vision, DALL-E 3 and TTS APIs.","occurred_at":"2023-11-06T00:00:00.000Z","published_at":"2023-11-06T00:00:00.000Z","observed_at":"2026-10-08T15:42:00.000Z","reconstructed_at":"2026-10-08T15:50:00.000Z","ingest_type":"live_world_scan","locations":null,"status":"verified","confidence":0.99,"metadata":{"actors":["OpenAI"],"what_happened_at_time":"OpenAI launched GPT-4 Turbo preview with 128K context, improved function calling, vision, DALL-E 3 and TTS APIs.","evidence_at_time":"OpenAI's DevDay release lists GPT-4 Turbo 128K preview and expanded multimodal APIs.","affected_layers":["layer-models","layer-software","layer-ai","layer-human"],"change_kind":"multimodal_platform_expansion","q3_continuity":"Q3 began public image/voice rollout.","retrospective_inference":"Q4 expands multimodal and long-context capability across the developer platform.","uncertainty":"GPT-4 Turbo launched as preview."},"created_at":"2026-10-08T17:00:00.114Z","updated_at":"2026-10-08T17:00:00.114Z"},"artifacts":[{"id":"art-openai-devday-20231106","dedupe_key":"ea64f6917e51c49d9a72fbd259e7a3f902228190eceaa59faff8122799676be3","canonical_url":"https://openai.com/index/new-models-and-developer-products-announced-at-devday/","evidence_locator":"","artifact_type":"developer_platform_release","title":"OpenAI DevDay model and assistant platform release","summary":"GPT-4 Turbo 128K preview, multimodal APIs and Assistants API with managed persistent threads, Retrieval, Code Interpreter and function calling were announced together.","creator_entities":["OpenAI"],"released_at":"2023-11-06T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2023-Q4"},"created_at":"2026-10-08T17:00:00.101Z","updated_at":"2026-10-08T17:00:00.101Z","relation":"evidenced_by"}],"signals":[{"id":"sig-q4-multimodal-platform-expansion","statement":"Long-context, multimodal and tool-capable model interfaces expanded across multiple providers and developer platforms while some frontier variants remained preview or unavailable.","signal_type":"multimodal_platform_expansion","direction":"increasing","confidence":0.98,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-08T15:50:00.000Z","created_at":"2026-10-08T17:00:00.123Z","updated_at":"2026-10-08T17:00:00.123Z"}]}