{"event":{"id":"evt-2024q4-o1-api","dedupe_key":"historical_material_change:2024-12-17:full-o1-api-gains-tool-and-vision-interfaces","event_type":"historical_material_change","title":"Full o1 API gains tool and vision interfaces","summary":"OpenAI began incremental developer rollout of o1 with function calling, structured outputs and vision.","occurred_at":"2024-12-17T00:00:00.000Z","published_at":"2024-12-17T00:00:00.000Z","observed_at":"2026-10-09T19:12:47.000Z","reconstructed_at":"2026-10-09T19:12:47.000Z","ingest_type":"live_world_scan","locations":null,"status":"verified","confidence":0.97,"metadata":{"what_happened_at_time":"OpenAI began incremental developer rollout of o1 with function calling, structured outputs and vision.","what_must_not_be_inferred":"The rollout was not immediately available to every API tier; tool calling does not authorize arbitrary actions.","availability_status":"incremental_rollout","affected_layers":["layer-models","layer-software","layer-agents"],"epistemic_status":"observed_fact"},"created_at":"2026-10-10T08:02:14.495Z","updated_at":"2026-10-10T08:02:14.495Z"},"artifacts":[{"id":"art-2024q4-o1-api","dedupe_key":"267717685f864b37462e89827373f4f42a7b9e8df44d7e33791411ede5a1c849","canonical_url":"https://openai.com/index/o1-and-new-tools-for-developers/","evidence_locator":"","artifact_type":"official_announcement","title":"Full o1 API gains tool and vision interfaces","summary":"OpenAI began incremental developer rollout of o1 with function calling, structured outputs and vision.","creator_entities":["OpenAI"],"released_at":"2024-12-17T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2024-Q4"},"created_at":"2026-10-10T08:02:14.485Z","updated_at":"2026-10-10T08:02:14.485Z","relation":"documented_by"}],"signals":[{"id":"sig-2024q4-agents","statement":"Developer computer control, shared tool/data connections and bounded research workflows enlarged action surfaces without proving persistent general autonomy.","signal_type":"historical_layer_delta","direction":"increasing","confidence":0.93,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-09T19:12:47.000Z","created_at":"2026-10-10T08:02:14.497Z","updated_at":"2026-10-10T08:02:14.497Z"},{"id":"sig-2024q4-models","statement":"Reasoning, audio, video and experimental tool-capable releases diversified available model interfaces, each with distinct rollout boundaries.","signal_type":"historical_layer_delta","direction":"increasing","confidence":0.93,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-09T19:12:47.000Z","created_at":"2026-10-10T08:02:14.496Z","updated_at":"2026-10-10T08:02:14.496Z"}]}