Model ID used to generate the response, like gpt-6-astra. OpenAI offers a wide range of models with different capabilities, performance characteristics, and price points. Refer to the model guide to browse and compare available models.

One of the following:

const BetaResponseModelGPT6Astra BetaResponseModel = "gpt-6-astra"

const BetaResponseModelGPT5_6Sol BetaResponseModel = "gpt-5.6-sol"

const BetaResponseModelGPT5_6Terra BetaResponseModel = "gpt-5.6-terra"

const BetaResponseModelGPT5_6Luna BetaResponseModel = "gpt-5.6-luna"

const BetaResponseModelGPT5_5 BetaResponseModel = "gpt-5.5"

const BetaResponseModelGPT5_5_2026_04_23 BetaResponseModel = "gpt-5.5-2026-04-23"

const BetaResponseModelGPT5_4 BetaResponseModel = "gpt-5.4"

const BetaResponseModelGPT5_4Mini BetaResponseModel = "gpt-5.4-mini"

const BetaResponseModelGPT5_4Nano BetaResponseModel = "gpt-5.4-nano"

const BetaResponseModelGPT5_4Mini2026_03_17 BetaResponseModel = "gpt-5.4-mini-2026-03-17"

const BetaResponseModelGPT5_4Nano2026_03_17 BetaResponseModel = "gpt-5.4-nano-2026-03-17"

const BetaResponseModelGPT5_3ChatLatest BetaResponseModel = "gpt-5.3-chat-latest"

const BetaResponseModelGPT5_2 BetaResponseModel = "gpt-5.2"

const BetaResponseModelGPT5_2_2025_12_11 BetaResponseModel = "gpt-5.2-2025-12-11"

const BetaResponseModelGPT5_2ChatLatest BetaResponseModel = "gpt-5.2-chat-latest"

const BetaResponseModelGPT5_2Pro BetaResponseModel = "gpt-5.2-pro"

const BetaResponseModelGPT5_2Pro2025_12_11 BetaResponseModel = "gpt-5.2-pro-2025-12-11"

const BetaResponseModelGPT5_1 BetaResponseModel = "gpt-5.1"

const BetaResponseModelGPT5_1_2025_11_13 BetaResponseModel = "gpt-5.1-2025-11-13"

const BetaResponseModelGPT5_1Codex BetaResponseModel = "gpt-5.1-codex"

const BetaResponseModelGPT5_1Mini BetaResponseModel = "gpt-5.1-mini"

const BetaResponseModelGPT5_1ChatLatest BetaResponseModel = "gpt-5.1-chat-latest"

const BetaResponseModelGPT5 BetaResponseModel = "gpt-5"

const BetaResponseModelGPT5Mini BetaResponseModel = "gpt-5-mini"

const BetaResponseModelGPT5Nano BetaResponseModel = "gpt-5-nano"

const BetaResponseModelGPT5_2025_08_07 BetaResponseModel = "gpt-5-2025-08-07"

const BetaResponseModelGPT5Mini2025_08_07 BetaResponseModel = "gpt-5-mini-2025-08-07"

const BetaResponseModelGPT5Nano2025_08_07 BetaResponseModel = "gpt-5-nano-2025-08-07"

const BetaResponseModelGPT5ChatLatest BetaResponseModel = "gpt-5-chat-latest"

const BetaResponseModelGPT4_1 BetaResponseModel = "gpt-4.1"

const BetaResponseModelGPT4_1Mini BetaResponseModel = "gpt-4.1-mini"

const BetaResponseModelGPT4_1Nano BetaResponseModel = "gpt-4.1-nano"

const BetaResponseModelGPT4_1_2025_04_14 BetaResponseModel = "gpt-4.1-2025-04-14"

const BetaResponseModelGPT4_1Mini2025_04_14 BetaResponseModel = "gpt-4.1-mini-2025-04-14"

const BetaResponseModelGPT4_1Nano2025_04_14 BetaResponseModel = "gpt-4.1-nano-2025-04-14"

const BetaResponseModelO4Mini BetaResponseModel = "o4-mini"

const BetaResponseModelO4Mini2025_04_16 BetaResponseModel = "o4-mini-2025-04-16"

const BetaResponseModelO3 BetaResponseModel = "o3"

const BetaResponseModelO3_2025_04_16 BetaResponseModel = "o3-2025-04-16"

const BetaResponseModelO3Mini BetaResponseModel = "o3-mini"

const BetaResponseModelO3Mini2025_01_31 BetaResponseModel = "o3-mini-2025-01-31"

const BetaResponseModelO1 BetaResponseModel = "o1"

const BetaResponseModelO1_2024_12_17 BetaResponseModel = "o1-2024-12-17"

const BetaResponseModelO1Preview BetaResponseModel = "o1-preview"

const BetaResponseModelO1Preview2024_09_12 BetaResponseModel = "o1-preview-2024-09-12"

const BetaResponseModelO1Mini BetaResponseModel = "o1-mini"

const BetaResponseModelO1Mini2024_09_12 BetaResponseModel = "o1-mini-2024-09-12"

const BetaResponseModelGPT4o BetaResponseModel = "gpt-4o"

const BetaResponseModelGPT4o2024_11_20 BetaResponseModel = "gpt-4o-2024-11-20"

const BetaResponseModelGPT4o2024_08_06 BetaResponseModel = "gpt-4o-2024-08-06"

const BetaResponseModelGPT4o2024_05_13 BetaResponseModel = "gpt-4o-2024-05-13"

const BetaResponseModelGPT4oAudioPreview BetaResponseModel = "gpt-4o-audio-preview"

const BetaResponseModelGPT4oAudioPreview2024_10_01 BetaResponseModel = "gpt-4o-audio-preview-2024-10-01"

const BetaResponseModelGPT4oAudioPreview2024_12_17 BetaResponseModel = "gpt-4o-audio-preview-2024-12-17"

const BetaResponseModelGPT4oAudioPreview2025_06_03 BetaResponseModel = "gpt-4o-audio-preview-2025-06-03"

const BetaResponseModelGPT4oMiniAudioPreview BetaResponseModel = "gpt-4o-mini-audio-preview"

const BetaResponseModelGPT4oMiniAudioPreview2024_12_17 BetaResponseModel = "gpt-4o-mini-audio-preview-2024-12-17"

const BetaResponseModelGPT4oSearchPreview BetaResponseModel = "gpt-4o-search-preview"

const BetaResponseModelGPT4oMiniSearchPreview BetaResponseModel = "gpt-4o-mini-search-preview"

const BetaResponseModelGPT4oSearchPreview2025_03_11 BetaResponseModel = "gpt-4o-search-preview-2025-03-11"

const BetaResponseModelGPT4oMiniSearchPreview2025_03_11 BetaResponseModel = "gpt-4o-mini-search-preview-2025-03-11"

const BetaResponseModelChatgpt4oLatest BetaResponseModel = "chatgpt-4o-latest"

const BetaResponseModelCodexMiniLatest BetaResponseModel = "codex-mini-latest"

const BetaResponseModelGPT4oMini BetaResponseModel = "gpt-4o-mini"

const BetaResponseModelGPT4oMini2024_07_18 BetaResponseModel = "gpt-4o-mini-2024-07-18"

const BetaResponseModelGPT4Turbo BetaResponseModel = "gpt-4-turbo"

const BetaResponseModelGPT4Turbo2024_04_09 BetaResponseModel = "gpt-4-turbo-2024-04-09"

const BetaResponseModelGPT4_0125Preview BetaResponseModel = "gpt-4-0125-preview"

const BetaResponseModelGPT4TurboPreview BetaResponseModel = "gpt-4-turbo-preview"

const BetaResponseModelGPT4_1106Preview BetaResponseModel = "gpt-4-1106-preview"

const BetaResponseModelGPT4VisionPreview BetaResponseModel = "gpt-4-vision-preview"

const BetaResponseModelGPT4 BetaResponseModel = "gpt-4"

const BetaResponseModelGPT4_0314 BetaResponseModel = "gpt-4-0314"

const BetaResponseModelGPT4_0613 BetaResponseModel = "gpt-4-0613"

const BetaResponseModelGPT4_32k BetaResponseModel = "gpt-4-32k"

const BetaResponseModelGPT4_32k0314 BetaResponseModel = "gpt-4-32k-0314"

const BetaResponseModelGPT4_32k0613 BetaResponseModel = "gpt-4-32k-0613"

const BetaResponseModelGPT3_5Turbo BetaResponseModel = "gpt-3.5-turbo"

const BetaResponseModelGPT3_5Turbo16k BetaResponseModel = "gpt-3.5-turbo-16k"

const BetaResponseModelGPT3_5Turbo0301 BetaResponseModel = "gpt-3.5-turbo-0301"

const BetaResponseModelGPT3_5Turbo0613 BetaResponseModel = "gpt-3.5-turbo-0613"

const BetaResponseModelGPT3_5Turbo1106 BetaResponseModel = "gpt-3.5-turbo-1106"

const BetaResponseModelGPT3_5Turbo0125 BetaResponseModel = "gpt-3.5-turbo-0125"

const BetaResponseModelGPT3_5Turbo16k0613 BetaResponseModel = "gpt-3.5-turbo-16k-0613"

const BetaResponseModelO1Pro BetaResponseModel = "o1-pro"

const BetaResponseModelO1Pro2025_03_19 BetaResponseModel = "o1-pro-2025-03-19"

const BetaResponseModelO3Pro BetaResponseModel = "o3-pro"

const BetaResponseModelO3Pro2025_06_10 BetaResponseModel = "o3-pro-2025-06-10"

const BetaResponseModelO3DeepResearch BetaResponseModel = "o3-deep-research"

const BetaResponseModelO3DeepResearch2025_06_26 BetaResponseModel = "o3-deep-research-2025-06-26"

const BetaResponseModelO4MiniDeepResearch BetaResponseModel = "o4-mini-deep-research"

const BetaResponseModelO4MiniDeepResearch2025_06_26 BetaResponseModel = "o4-mini-deep-research-2025-06-26"

const BetaResponseModelComputerUsePreview BetaResponseModel = "computer-use-preview"

const BetaResponseModelComputerUsePreview2025_03_11 BetaResponseModel = "computer-use-preview-2025-03-11"

const BetaResponseModelGPT5_5Pro BetaResponseModel = "gpt-5.5-pro"

const BetaResponseModelGPT5_5Pro2026_04_23 BetaResponseModel = "gpt-5.5-pro-2026-04-23"

const BetaResponseModelGPT5Codex BetaResponseModel = "gpt-5-codex"

const BetaResponseModelGPT5Pro BetaResponseModel = "gpt-5-pro"

const BetaResponseModelGPT5Pro2025_10_06 BetaResponseModel = "gpt-5-pro-2025-10-06"

const BetaResponseModelGPT5_1CodexMax BetaResponseModel = "gpt-5.1-codex-max"

const BetaResponseModelGPTDaybreakBlueLatest BetaResponseModel = "gpt-daybreak-blue-latest"

const BetaResponseModelGPTDaybreakRedLatest BetaResponseModel = "gpt-daybreak-red-latest"

const BetaResponseModelGPT5_6Cyber BetaResponseModel = "gpt-5.6-cyber"