Codex CLI 0.125.0
Codex CLI 0.125.0
Recent changes
Codex CLI 0.125.0
Released GPT-5.5, a new frontier model for complex professional work, to the Chat Completions and Responses API, and released GPT-5.5 pro for Responses API requests for tougher problems that benefit from more compute. G…
Codex CLI 0.123.0
GPT-5.5 and Codex app updates
Codex CLI 0.124.0
Released GPT Image 2, a state-of-the-art image generation model for image generation and editing. GPT Image 2 supports flexible image sizes, high-fidelity image inputs, token-based image pricing, and Batch API support w…
Codex CLI 0.122.0
Codex can now help with more of your work 26.415
Codex CLI 0.121.0
Updated the Agents SDK with new capabilities, including: running agents in controlled sandboxes; inspecting and customizing the open-source harness; and controlling when memories are created and where they're stored.
Codex CLI 0.120.0
Codex CLI 0.119.0
Codex model availability update
Codex CLI 0.118.0
Codex CLI 0.117.0
Build and install plugins in Codex
Codex app 26.323
Codex app 26.318
Codex CLI 0.116.0
Released GPT-5.4 mini and GPT-5.4 nano to the Chat Completions and Responses API. GPT-5.4 mini brings GPT-5.4-class capabilities to a faster, more efficient model for high-volume workloads, while GPT-5.4 nano is optimiz…
Updated the gpt-5.3-chat-latest slug to point to the latest model currently used in ChatGPT.
Updated our image encoder to fix a small bug with input_image inputs in GPT-5.4. Some image understanding use cases may now see improved quality. No action is required.
Added POST /v1/videos/edits for editing existing videos. This will replace POST /v1/videos/{video_id}/remix, which will be deprecated in 6 months. Learn more here.
Expanded the Sora API with reusable character references, longer generations up to 20 seconds, 1080p output for sora-2-pro, video extensions, and Batch API support for POST /v1/videos. 1080p generations on sora-2-pro ar…
Released GPT-5.4, our newest frontier model for professional work, to the Chat Completions and Responses API, and released GPT-5.4 pro to the Responses API for tougher problems that benefit from more compute. Also relea…
Released gpt-5.3-chat-latest to the Chat Completions and Responses API. This model points to the GPT-5.3 Instant snapshot currently used in ChatGPT. Read more here.
Released gpt-5.3-codex to the Responses API. Read more here.
Expanded input_file support to accept more document, presentation, spreadsheet, code, and text file types. Learn more here.
Released phase to the Responses API. It labels an assistant message as intermediate commentary (commentary) or the final answer (final_answer). Read more here.
Added metadata field support to fine-tuning jobs.
gpt-4o-mini-transcribe-2025-12-15