OpenAI: value can now return "gpt-6.1-terra"

OpenAI added "gpt-6.1-terra" as a new value to its BetaModelIdsShared schema, which the change notice says is reachable from 4 operations and affects code reading those objects across 5 OpenAI operations. The addition breaks exhaustive switches, strict parsers and generated client enums, even though producer-side tools call the change additive.

What changed Producer-side tools call this additive. It breaks exhaustive switches, strict parsers and generated client enums. Affects this value on BetaModelIdsShared reachable from 4 operations. New value: gpt-6.1-terra . can now return "gpt-6.1-terra" Who is affected Code that reads OpenAI's BetaModelIdsShared objects, used by 5 OpenAI operations. Before and after | Where | Before | After | |---|---|---| | BetaModelIdsShared | "chatgpt-4o-latest", "codex-mini-latest", "gpt-3.5-turbo", "gpt-3.5-turbo-0125", "gpt-3.5-turbo-0301", "gpt-3.5-turbo-0613", "gpt-3.5-turbo-1106", "gpt-3.5-turbo-16k", "gpt-3.5-turbo-16k-0613", "gpt-4", "gpt-4-0125-preview", "gpt-4-0314", "gpt-4-0613", "gpt-4-1106-preview", "gpt-4-32k", "gpt-4-32k-0314", "gpt-4-32k-0613", "gpt-4-turbo", "gpt-4-turbo-2024-04-09", "gpt-4-turbo-preview", "gpt-4-vision-preview", "gpt-4.1", "gpt-4.1-2025-04-14", "gpt-4.1-mini", "gpt-4.1-mini-2025-04-14", "gpt-4.1-nano", "gpt-4.1-nano-2025-04-14", "gpt-4o", "gpt-4o-2024-05-13", "gpt-4o-2024-08-06", "gpt-4o-2024-11-20", "gpt-4o-audio-preview", "gpt-4o-audio-preview-2024-10-01", "gpt-4o-audio-preview-2024-12-17", "gpt-4o-audio-preview-2025-06-03", "gpt-4o-mini", "gpt-4o-mini-2024-07-18", "gpt-4o-mini-audio-preview", "gpt-4o-mini-audio-preview-2024-12-17", "gpt-4o-mini-search-preview", "gpt-4o-mini-search-preview-2025-03-11", "gpt-4o-search-preview", "gpt-4o-search-preview-2025-03-11", "gpt-5", "gpt-5-2025-08-07", "gpt-5-chat-latest", "gpt-5-mini", "gpt-5-mini-2025-08-07", "gpt-5-nano", "gpt-5-nano-2025-08-07", "gpt-5.1", "gpt-5.1-2025-11-13", "gpt-5.1-chat-latest", "gpt-5.1-codex", "gpt-5.1-mini", "gpt-5.2", "gpt-5.2-2025-12-11", "gpt-5.2-chat-latest", "gpt-5.2-pro", "gpt-5.2-pro-2025-12-11", "gpt-5.3-chat-latest", "gpt-5.4", "gpt-5.4-mini", "gpt-5.4-mini-2026-03-17", "gpt-5.4-nano", "gpt-5.4-nano-2026-03-17", "gpt-5.5", "gpt-5.5-2026-04-23", "gpt-5.6-luna", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-6-astra", "gpt-6-luna", "gpt-6-sol", "gpt-6.1-sol", "gpt-audio-mini", "gpt-audio-mini-2025-12-15", "o1", "o1-2024-12-17", "o1-mini", "o1-mini-2024-09-12", "o1-preview", "o1-preview-2024-09-12", "o3", "o3-2025-04-16", "o3-mini", "o3-mini-2025-01-31", "o4-mini", "o4-mini-2025-04-16" | "chatgpt-4o-latest", "codex-mini-latest", "gpt-3.5-turbo", "gpt-3.5-turbo-0125", "gpt-3.5-turbo-0301", "gpt-3.5-turbo-0613", "gpt-3.5-turbo-1106", "gpt-3.5-turbo-16k", "gpt-3.5-turbo-16k-0613", "gpt-4", "gpt-4-0125-preview", "gpt-4-0314", "gpt-4-0613", "gpt-4-1106-preview", "gpt-4-32k", "gpt-4-32k-0314", "gpt-4-32k-0613", "gpt-4-turbo", "gpt-4-turbo-2024-04-09", "gpt-4-turbo-preview", "gpt-4-vision-preview", "gpt-4.1", "gpt-4.1-2025-04-14", "gpt-4.1-mini", "gpt-4.1-mini-2025-04-14", "gpt-4.1-nano", "gpt-4.1-nano-2025-04-14", "gpt-4o", "gpt-4o-2024-05-13", "gpt-4o-2024-08-06", "gpt-4o-2024-11-20", "gpt-4o-audio-preview", "gpt-4o-audio-preview-2024-10-01", "gpt-4o-audio-preview-2024-12-17", "gpt-4o-audio-preview-2025-06-03", "gpt-4o-mini", "gpt-4o-mini-2024-07-18", "gpt-4o-mini-audio-preview", "gpt-4o-mini-audio-preview-2024-12-17", "gpt-4o-mini-search-preview", "gpt-4o-mini-search-preview-2025-03-11", "gpt-4o-search-preview", "gpt-4o-search-preview-2025-03-11", "gpt-5", "gpt-5-2025-08-07", "gpt-5-chat-latest", "gpt-5-mini", "gpt-5-mini-2025-08-07", "gpt-5-nano", "gpt-5-nano-2025-08-07", "gpt-5.1", "gpt-5.1-2025-11-13", "gpt-5.1-chat-latest", "gpt-5.1-codex", "gpt-5.1-mini", "gpt-5.2", "gpt-5.2-2025-12-11", "gpt-5.2-chat-latest", "gpt-5.2-pro", "gpt-5.2-pro-2025-12-11", "gpt-5.3-chat-latest", "gpt-5.4", "gpt-5.4-mini", "gpt-5.4-mini-2026-03-17", "gpt-5.4-nano", "gpt-5.4-nano-2026-03-17", "gpt-5.5", "gpt-5.5-2026-04-23", "gpt-5.6-luna", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-6-astra", "gpt-6-luna", "gpt-6-sol", "gpt-6.1-sol", "gpt-6.1-terra", "gpt-audio-mini", "gpt-audio-mini-2025-12-15", "o1", "o1-2024-12-17", "o1-mini", "o1-mini-2024-09-12", "o1-preview", "o1-preview-2024-09-12", "o3", "o3-2025-04-16", "o3-mini", "o3-mini-2025-01-31", "o4-mini", "o4-mini-2025-04-16" | | ModelIdsShared | "chatgpt-4o-latest", "codex-mini-latest", "gpt-3.5-turbo", "gpt-3.5-turbo-0125", "gpt-3.5-turbo-0301", "gpt-3.5-turbo-0613", "gpt-3.5-turbo-1106", "gpt-3.5-turbo-16k", "gpt-3.5-turbo-16k-0613", "gpt-4", "gpt-4-0125-preview", "gpt-4-0314", "gpt-4-0613", "gpt-4-1106-preview", "gpt-4-32k", "gpt-4-32k-0314", "gpt-4-32k-0613", "gpt-4-turbo", "gpt-4-turbo-2024-04-09", "gpt-4-turbo-preview", "gpt-4-vision-preview", "gpt-4.1", "gpt-4.1-2025-04-14", "gpt-4.1-mini", "gpt-4.1-mini-2025-04-14", "gpt-4.1-nano", "gpt-4.1-nano-2025-04-14", "gpt-4o", "gpt-4o-2024-05-13", "gpt-4o-2024-08-06", "gpt-4o-2024-11-20", "gpt-4o-audio-preview", "gpt-4o-audio-preview-2024-10-01", "gpt-4o-audio-preview-2024-12-17", "gpt-4o-audio-preview-2025-06-03", "gpt-4o-mini", "gpt-4o-mini-2024-07-18", "gpt-4o-mini-audio-preview", "gpt-4o-mini-audio-preview-2024-12-17", "gpt-4o-mini-search-preview", "gpt-4o-mini-search-preview-2025-03-11", "gpt-4o-search-preview", "gpt-4o-search-preview-2025-03-11", "gpt-5", "gpt-5-2025-08-07", "gpt-5-chat-latest", "gpt-5-mini", "gpt-5-mini-2025-08-07", "gpt-5-nano", "gpt-5-nano-2025-08-07", "gpt-5.1", "gpt-5.1-2025-11-13", "gpt-5.1-chat-latest", "gpt-5.1-codex", "gpt-5.1-mini", "gpt-5.2", "gpt-5.2-2025-12-11", "gpt-5.2-chat-latest", "gpt-5.2-pro", "gpt-5.2-pro-2025-12-11", "gpt-5.3-chat-latest", "gpt-5.4", "gpt-5.4-mini", "gpt-5.4-mini-2026-03-17", "gpt-5.4-nano", "gpt-5.4-nano-2026-03-17", "gpt-5.5", "gpt-5.5-2026-04-23", "gpt-5.6-luna", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-6-astra", "gpt-6-luna", "gpt-6-sol", "gpt-6.1-sol", "gpt-audio-mini", "gpt-audio-mini-2025-12-15", "o1", "o1-2024-12-17", "o1-mini", "o1-mini-2024-09-12", "o1-preview", "o1-preview-2024-09-12", "o3", "o3-2025-04-16", "o3-mini", "o3-mini-2025-01-31", "o4-mini", "o4-mini-2025-04-16" | "chatgpt-4o-latest", "codex-mini-latest", "gpt-3.5-turbo", "gpt-3.5-turbo-0125", "gpt-3.5-turbo-0301", "gpt-3.5-turbo-0613", "gpt-3.5-turbo-1106", "gpt-3.5-turbo-16k", "gpt-3.5-turbo-16k-0613", "gpt-4", "gpt-4-0125-preview", "gpt-4-0314", "gpt-4-0613", "gpt-4-1106-preview", "gpt-4-32k", "gpt-4-32k-0314", "gpt-4-32k-0613", "gpt-4-turbo", "gpt-4-turbo-2024-04-09", "gpt-4-turbo-preview", "gpt-4-vision-preview", "gpt-4.1", "gpt-4.1-2025-04-14", "gpt-4.1-mini", "gpt-4.1-mini-2025-04-14", "gpt-4.1-nano", "gpt-4.1-nano-2025-04-14", "gpt-4o", "gpt-4o-2024-05-13", "gpt-4o-2024-08-06", "gpt-4o-2024-11-20", "gpt-4o-audio-preview", "gpt-4o-audio-preview-2024-10-01", "gpt-4o-audio-preview-2024-12-17", "gpt-4o-audio-preview-2025-06-03", "gpt-4o-mini", "gpt-4o-mini-2024-07-18", "gpt-4o-mini-audio-preview", "gpt-4o-mini-audio-preview-2024-12-17", "gpt-4o-mini-search-preview", "gpt-4o-mini-search-preview-2025-03-11", "gpt-4o-search-preview", "gpt-4o-search-preview-2025-03-11", "gpt-5", "gpt-5-2025-08-07", "gpt-5-chat-latest", "gpt-5-mini", "gpt-5-mini-2025-08-07", "gpt-5-nano", "gpt-5-nano-2025-08-07", "gpt-5.1", "gpt-5.1-2025-11-13", "gpt-5.1-chat-latest", "gpt-5.1-codex", "gpt-5.1-mini", "gpt-5.2", "gpt-5.2-2025-12-11", "gpt-5.2-chat-latest", "gpt-5.2-pro", "gpt-5.2-pro-2025-12-11", "gpt-5.3-chat-latest", "gpt-5.4", "gpt-5.4-mini", "gpt-5.4-mini-2026-03-17", "gpt-5.4-nano", "gpt-5.4-nano-2026-03-17", "gpt-5.5", "gpt-5.5-2026-04-23", "gpt-5.6-luna", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-6-astra", "gpt-6-luna", "gpt-6-sol", "gpt-6.1-sol", "gpt-6.1-terra", "gpt-audio-mini", "gpt-audio-mini-2025-12-15", "o1", "o1-2024-12-17", "o1-mini", "o1-mini-2024-09-12", "o1-preview", "o1-preview-2024-09-12", "o3", "o3-2025-04-16", "o3-mini", "o3-mini-2025-01-31", "o4-mini", "o4-mini-2025-04-16" | Code that breaks switch response { // existing branches … // no branch for "gpt-6.1-terra" default: throw new Error "unexpected value" ; } Based on OpenAI’s published API specification. How severity is decided https://driftwatch.et/method .