OpenAI releases GPT-5.5 and GPT-5.5 Pro in the API

ChangelogUpcoming deprecations can be found on the deprecations page.

April, 2026

Apr 23Featuregpt-5.5gpt-5.5-prov1/responsesv1/chat/completionsv1/batch

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, including through Batch, for tougher problems that benefit from more compute.

GPT-5.5 supports a 1M token context window, image input, structured outputs, function calling, prompt caching, Batch, tool search, built-in computer use, hosted shell, apply patch, Skills, MCP, and web search. GPT-5.5 defaults to medium reasoning effort.

Apr 21Featuregpt-image-2v1/images/generationsv1/images/editsv1/batch

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 with a 50% discount.

Apr 15Update

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.

March, 2026

Mar 17Featuregpt-5.4-minigpt-5.4-nanov1/responsesv1/chat/completions

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 optimized for simple high-volume tasks where speed and cost matter most.

GPT-5.4 mini supports tool search, built-in computer use, and compaction. GPT-5.4 nano supports compaction, but does not support tool search or computer use.

Mar 16Updategpt-5.3-chat-latest

Updated the gpt-5.3-chat-latest slug to point to the latest model currently used in ChatGPT.

Mar 13Fixgpt-5.4v1/responsesv1/chat/completions

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.

Mar 12Featuresora-2sora-2-prov1/videosv1/videos/charactersv1/videos/extensionsv1/batch

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 are billed at $0.70 per second. Learn more here.

Mar 12Updatesora-2sora-2-prov1/videos/editsv1/videos/{video_id}/remix

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.

Mar 5Featuregpt-5.4gpt-5.4-prov1/responsesv1/chat/completions

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 released:

• Tool search in the Responses API, which lets models defer large tool surfaces until runtime to reduce token usage, preserve cache performance, and improve latency.
• Built-in Computer use support in GPT-5.4 through the Responses API computer tool for screenshot-based UI interaction.
• A 1M token context window and native Compaction support for longer-running agent workflows.

Mar 3Featuregpt-5.3-chat-latestv1/chat/completionsv1/responses

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.

February, 2026

Feb 24Featurev1/responsesv1/chat/completions

Expanded input_file support to accept more document, presentation, spreadsheet, code, and text file types. Learn more here.

Feb 24Featurev1/responses

Released phase to the Responses API. It labels an assistant message as intermediate commentary (commentary) or the final answer (final_answer). Read more here.

Feb 24Featuregpt-5.3-codexv1/responses

Released gpt-5.3-codex to the Responses API. Read more here.

Feb 23Featurev1/responses

Launched WebSocket mode for the Responses API. Learn more here.

Feb 23Featuregpt-realtime-1.5gpt-audio-1.5v1/realtimev1/chat/completions

Released gpt-realtime-1.5 to the Realtime API. Read more here.

Released gpt-audio-1.5 to the Chat Completions API. Read more here.

Feb 10Featuregpt-image-1.5gpt-image-1gpt-image-1-minichatgpt-image-latestv1/batch

Batch API is now supported for GPT Image models: gpt-image-1.5, chatgpt-image-latest, gpt-image-1, and gpt-image-1-mini.

Feb 10Updategpt-5.2-chat-latest

Updated the gpt-5.2-chat-latest slug to point to the latest model currently used in ChatGPT.

Feb 10Featurev1/responses

Launched server-side compaction in the Responses API.

Feb 10Featurev1/responses

Launched support for Skills in the Responses API. We support Skills across both local execution and hosted container-based execution.

Feb 10Featurev1/responses

Launched a new Hosted Shell tool, as well as support for networking in containers.

Feb 9Featuregpt-image-1.5gpt-image-1gpt-image-1-minichatgpt-image-latestv1/images/edits

Added support for application/json requests on /v1/images/edits for GPT image models. JSON requests use images (and optional mask) with image_url or file_id references instead of multipart uploads.

Feb 3Updategpt-5.2gpt-5.2-codex

We have optimized our inference stack for API customers and GPT-5.2 and GPT-5.2-Codex now run ~40% faster. Model and model weights are unchanged.

January, 2026

Jan 15Announcement

Announced Open Responses: an open-source spec for building multi-provider, interoperable LLM interfaces built on top of the original OpenAI Responses API.

Jan 14Featuregpt-5.2-codexv1/responses

Released gpt-5.2-codex to the Responses API. GPT-5.2-Codex is a version of GPT-5.2 optimized for agentic coding tasks in Codex or similar environments. Read more here.

Jan 13Featurev1/realtime

Added dedicated SIP IP ranges for Realtime API. sip.api.openai.com does GeoIP routing, and will direct SIP traffic to the closest region. Learn more.

Jan 13Updategpt-realtime-minigpt-audio-mini

Updated the gpt-realtime-mini and gpt-audio-mini slugs to point to the 2025-12-15 snapshots. If you need the previous model snapshots, use gpt-realtime-mini-2025-10-06 and gpt-audio-mini-2025-10-06.

Jan 13Updatesora-2

Updated the sora-2 slug to point to sora-2-2025-12-08. If you need the previous model snapshot, use sora-2-2025-10-06.

Jan 13Updategpt-4o-mini-ttsgpt-4o-mini-transcribe

Updated the gpt-4o-mini-tts and gpt-4o-mini-transcribe slugs to point to the 2025-12-15 snapshots. If you need the previous model snapshots, use gpt-4o-mini-tts-2025-03-20 and gpt-4o-mini-transcribe-2025-03-20. We currently recomend using gpt-4o-mini-transcribe over gpt-4o-transcribe for the best results.

Jan 9Fixgpt-image-1.5chatgpt-image-latest

Fixed an issue where gpt-image-1.5 and chatgpt-image-latest were incorrectly using high fidelity for image edits through /v1/images/edits, even when fidelity was explicitly set to low (the default).

December, 2025

Dec 19Updategpt-image-1.5chatgpt-image-latest

Added gpt-image-1.5 and chatgpt-image-latest to the Responses API image generation tool.

Dec 16Featuregpt-image-1.5chatgpt-image-latest

Released gpt-image-1.5 and chatgpt-image-latest, our latest and most advanced models for image generation. Read more here.

Dec 15Featuregpt-realtime-minigpt-audio-minigpt-4o-mini-transcribegpt-4o-mini-tts

Released four new dated audio snapshots. These updates deliver reliability, quality, and voice fidelity improvements for real-time, voice-driven applications. Read more here.

• gpt-realtime-mini-2025-12-15
• gpt-audio-mini-2025-12-15
• gpt-4o-mini-transcribe-2025-12-15
• gpt-4o-mini-tts-2025-12-15

This launch also includes support for Custom voices for eligible customers.

Dec 11Featuregpt-5.2gpt-5.2-chat-latestv1/responsesv1/chat/completions

Released GPT-5.2, the newest flagship model in the GPT-5 model family. GPT-5.2 shows improvements over the previous GPT-5.1 in:

• General intelligence
• Instruction following
• Accuracy and token efficiency
• Multimodality—especially vision
• Code generation—especially front-end UI creation
• Tool calling and context management in the API
• Spreadsheet understanding and creation.

What's new in 5.2 is a new xhigh reasoning effort level, concise reasoning summaries, and new context management using compaction.

Dec 11Featurev1/responses/compact

Released client-side compaction. For long-running conversations with the Responses API, you can use the /responses/compact endpoint to shrink the context you send with each turn.

Dec 4Featuregpt-5.1-codex-maxv1/responses

Released gpt-5.1-codex-max to the Responses API. GPT-5.1-Codex is our most intelligent coding model optimized for long-horizon, agentic coding tasks. Read more here.

November, 2025

Nov 20Featurev1/realtime

Added support for DTMF key presses in the Realtime API. You can now receive DTMF events while using a Realtime sideband connection. See docs here for more information.

Nov 13Featuregpt-5.1gpt-5.1-codexgpt-5.1-chat-latestgpt-5.1-codex-miniv1/responsesv1/chat/completions

Released GPT-5.1, the newest flagship model in the GPT-5 model family. GPT-5.1 is trained to be especially proficient in:

• Steerability and faster responses when less thinking's required
• Code generation and coding use cases
• Agentic workflows

Note that GPT-5.1 defaults to a new none reasoning setting for faster responses when less thinking's required—different from the previous medium default setting in GPT-5.

Nov 13Feature

Released enhanced role-based access controls (RBAC). Role-based access control (RBAC) lets you decide who can do what across your organization and projects—both through the API and in the Dashboard.

Nov 13Featuregpt-5.1-codexgpt-5.1-codex-miniv1/responses

Released gpt-5.1-codex and gpt-5.1-codex-mini to the Responses API. GPT-5.1-Codex is a version of GPT-5.1 optimized for agentic coding tasks in Codex or similar environments. Read more here.

Nov 13Feature

Released extended prompt cache retention. Extended prompt cache retention keeps cached prefixes active for longer, up to a maximum of 24 hours. Extended Prompt Caching works by offloading the key/value tensors to GPU-local storage when memory is full, significantly increasing the storage capacity available for caching.

October, 2025

Oct 29Featuregpt-oss-safeguard-120bgpt-oss-safeguard-20b

gpt-oss-safeguard-120b and gpt-oss-safeguard-20b are safety reasoning models built-upon gpt-oss. Read more here.

Oct 24Feature

Released Enterprise Key Management (EKM). Enterprise Key Management (EKM) allows you to encrypt your customer content at OpenAI using keys managed by your own external Key Management System (KMS).

Oct 24Feature

Released UK data residency.

Oct 6Featuregpt-5-progpt-realtime-minigpt-audio-minigpt-image-1-minisora-2sora-2-prov1/responsesv1/batchv1/chat/completionsv1/videosv1/realtimev1/images/generations

Released several new features at OpenAI DevDay:

Released gpt-5-pro, a version of GPT-5 that uses more compute to think harder and provide consistently better answers.

Released gpt-realtime-mini and gpt-audio-mini for more cost-efficient speech to speech performance.

Released gpt-image-1-mini for more cost-efficient image generation and editing.

Launched v1/videos for rich, detailed, and dynamic video generation and remixing with our latest Sora 2 and Sora 2 Pro models.

Launched Agent Builder for visually creating custom multi-agent workflows.

Launched ChatKit, an embeddable chat interface for deploying agents.

Released Trace Evals, Datasets, and Prompt Optimization tools.

Evals: Released Third-Party Model Support.

Launched Service health dashboard.

Oct 1Feature

Released IP allowlist. IP allowlisting restricts API access to only the IP addresses or ranges you specify.

September, 2025

Sep 26Featurev1/responses

Added support for image and file as a tool call output in Responses API.

Sep 23Featuregpt-5-codexv1/responses

Launched special-purpose model gpt-5-codex, built and optimized for use with the Codex CLI.

August, 2025

Aug 28Featurev1/realtime

The OpenAI Realtime API is now generally available. Learn more in our Realtime API guide.

Aug 21Featurev1/responses

Added support for connectors to the Responses API. Connectors are OpenAI-maintained MCP wrappers for popular services like Google apps, Dropbox, and more that can be used to give model read access to data stored in those services.

Aug 20Featurev1/conversationsv1/responsesv1/assistants

Released the Conversations API, which allows you to create and manage long-running conversations with the Responses API. See the migration guide to see a side-by-side comparison and learn how to migrate from an Assistants API integration to Responses and Conversations.

Aug 7Featurev1/chat/completionsv1/responses

Released GPT-5 family of models in the API, including gpt-5, gpt-5-mini, and gpt-5-nano.

Introduced the minimal reasoning effort value to optimize for fast responses in GPT-5 models (which support reasoning).

Introduced custom tool call type, which allows for freeform inputs to and outputs from the model when tool calling.

June, 2025

Jun 27Feature

Launched support for Priority processing. Priority processing delivers significantly lower and more consistent latency compared to Standard processing while keeping pay-as-you-go flexibility.

Jun 24Featureo3-deep-researcho3-deep-research-2025-06-26o4-mini-deep-researcho4-mini-deep-research-2025-06-26v1/responses

Released o3-deep-research and o4-mini-deep-research, deep research variants of our o-series reasoning models optimized for deep analysis and research tasks. Learn more in the deep research guide.

Added support for async event handling with webhooks. Reduced and simplified pricing for the web search tool. Added support for the web search tool.

Jun 13Featurev1/responses

New reusable prompts are now available in the dashboard and Responses API. Via API, you can now reference templates created in the dashboard via the prompt parameter (with a prompt id, optional version) and supply dynamic variables that can include strings, images, or file inputs. Reusable prompts are not available in Chat Completions. Learn more.

Jun 10Featureo3-prov1/responsesv1/batch

Released o3-pro, a version of the o3 reasoning model that uses more compute to answer hard problems with better reasoning and consistency. Prices for the o3 model have also been reduced for all API requests, including batch and flex processing.

Jun 4Featurev1/fine_tuning

Added fine-tuning support with direct preference optimization for the models gpt-4.1-2025-04-14, gpt-4.1-mini-2025-04-14, and gpt-4.1-nano-2025-04-14.

Jun 3Featurev1/chat/completionsv1/realtime

New model snapshots available for gpt-4o-audio-preview and gpt-4o-realtime-preview. Released Agents SDK for TypeScript.

May, 2025

May 20Featurev1/responses

Added support for new built-in tools in the Responses API, including remote MCP servers and code interpreter. Learn more about tools.

May 20Featurev1/responsesv1/chat/completions

Added support for using strict mode for tool schemas when using parallel tool calling with non-fine-tuned models. Added new schema features, including string validation for email and other patterns and specifying ranges for numbers and arrays.

May 15Featurecodex-mini-latestv1/responsesv1/chat/completions

Launched codex-mini-latest in the API, optimized for use with the Codex CLI.

May 7Featurev1/fine-tuningv1/responsesv1/chat/completions

Launched support for reinforcement fine-tuning. Learn about available fine-tuning methods. gpt-4.1-nano is now available for fine-tuning.

April, 2025

Apr 30Feature

Launched support for Enhanced API Budget Alerts & Auto-recharge Limits.

Apr 23Featurev1/images/generationsv1/images/edits

Added a new image generation model, gpt-image-1. This model sets a new standard for image generation, with improved quality and instruction following.

Updated the Image Generation and Edit endpoints to support new parameters specific to the gpt-image-1 model.

Apr 16Featurev1/chat/completionsv1/responses

Added two new o-series reasoning models, o3 and o4-mini. They set a new standard for math, science, and coding, visual reasoning tasks, and technical writing.

Launched Codex, our code generation CLI tool.

Apr 14Featuregpt-4.1gpt-4.1-minigpt-4.1-nanov1/responsesv1/chat/completionsv1/fine_tuning

Added gpt-4.1, gpt-4.1-mini, and gpt-4.1-nano models to the API. These new models feature improved instruction following, coding, and a larger context window (up to 1M tokens). gpt-4.1 and gpt-4.1-mini are available for supervised fine-tuning. Announced deprecation of gpt-4.5-preview.

March, 2025

Mar 20Updatev1/audio

Added gpt-4o-mini-tts, gpt-4o-transcribe, gpt-4o-mini-transcribe, and whisper-1 models to the Audio API.

Mar 19Featureo1-prov1/responsesv1/batch

Released o1-pro, a version of the o1 reasoning model that uses more compute to answer hard problems with better reasoning and consistency.

Mar 11Featuregpt-4o-search-previewgpt-4o-mini-search-previewcomputer-use-previewv1/chat/completionsv1/assistantsv1/responses

Released several new models and tools and a new API for agentic workflows:

• Released the Responses API, a new API for creating and using agents and tools.
• Released a set of built-in tools for the Responses API: web search, file search, and computer use.
• Released the Agents SDK, an orchestration framework for designing, building, and deploying agents.
• Announced new models: gpt-4o-search-preview, gpt-4o-mini-search-preview, computer-use-preview.
• Announced plans to bring all Assistants API features to the easier to use Responses API, with an anticipated sunset date for Assistants in 2026 (after achieving full feature parity).

Mar 3Featurev1/fine_tuning/jobs

Added metadata field support to fine-tuning jobs.

February, 2025

Feb 27FeatureGPT-4.5v1/chat/completionsv1/assistantsv1/batch

Released a research preview of GPT-4.5—our largest and most capable chat model yet. GPT-4.5's high "EQ" and understanding of user intent make it better at creative tasks and agentic planning.

Feb 25Feature

Launched the API Usage Dashboard Update. This update addresses requests for additional data filters, such as project selection, date picker, and fine-grained intervals. There’s also better support for viewing usage across different products and service tiers.

Feb 5Feature

Introducing data residency in Europe. Read more here.

January, 2025

Jan 31Featureo3-minio3-mini-2025-01-31v1/chat/completions

Launched o3-mini, a new small reasoning model that is optimized for science, math, and coding tasks.

Jan 21Featureo1

Expanded access to o1 model. The o1 series of models are trained with reinforcement learning to perform complex reasoning.

December, 2024

Dec 18Feature

Launched Admin API Key Rotations, enabling customers to programmatically rotate their admin api keys.

Updated Admin API Invites, enabling customers to programmatically invite users to projects at the same time they are invited to organizations.

Dec 17Featureo1gpt-4ogpt-4o-miniv1/fine_tuningv1/chat/completionsv1/realtime

Added new models for o1, gpt-4o-realtime, gpt-4o-audio and more.

Added WebRTC connection method for the Realtime API.

Added reasoning_effort parameter for o1 models.

Added developer message role for o1 model. Note that o1-preview and o1-mini do not support system or developer messages.

Launched Preference Fine-tuning using Direct Preference Optimization (DPO).

Launched beta SDKs for Go and Java. Learn more.

Added Realtime API support in the Python SDK.

Dec 4Feature

Launched Usage API, enabling customers to programmatically query activities and spending across OpenAI APIs.

November, 2024

Nov 20Updatev1/chat/completions

Released gpt-4o-2024-11-20, our newest model in the gpt-4o series.

Nov 4Featurev1/chat/completions

Released Predicted Outputs, which greatly reduces latency for model responses where much of the response is known ahead of time. This is most common when regenerating the content of documents and code files with only minor changes.

October, 2024

Oct 30Featuregpt-4o-realtime-previewgpt-4o-audio-previewv1/chat/completions

Added five new voice types in the Realtime API and Chat Completions API.

Oct 17Featuregpt-4o-audio-previewv1/chat/completions

Released new gpt-4o-audio-preview model for chat completions, which supports both audio inputs and outputs. Uses the same underlying model as the Realtime API.

Oct 1Featurev1/realtimev1/chat/completionsv1/fine_tuning

Released several new features at OpenAI DevDay in San Francisco:

Realtime API: Build fast speech-to-speech experiences into your applications using a WebSockets interface.

Model distillation: Platform for fine-tuning cost-efficient models with your outputs from a large frontier model.

Image fine-tuning: Fine-tune GPT-4o with images and text to improve vision capabilities.

Evals: Create and run custom evaluations to measure model performance on specific tasks.

Prompt caching: Discounts and faster processing times on recently seen input tokens.

Generate in playground: Easily generate prompts, function definitions, and structured output schemas in the playground using the Generate button.

September, 2024

Sep 26Featureomni-moderation-latestv1/moderations

Released new omni-moderation-latest moderation model, which supports both images and text (for some categories), supports two new text-only harm categories, and has more accurate scores.

Sep 12Featureo1-previewo1-miniv1/chat/completions

Released o1-preview and o1-mini, new large language models trained with reinforcement learning to perform complex reasoning tasks.

August, 2024

Aug 29Featurev1/assistants

Assistants API now supports including file search results used by the file search tool, and customizing ranking behavior.

Aug 20Featuregpt-4ov1/fine_tuning

GA release for gpt-4o-2024-08-06 fine-tuning—all API users can now fine-tune the latest GPT-4o model.

Aug 15Updategpt-4ov1/chat/completions

Released dynamic model for chatgpt-4o-latest—this model will point to the latest GPT-4o model used by ChatGPT.

Aug 6Update

Launched Structured Outputs—model outputs now reliably adhere to developer supplied JSON Schemas.

Released gpt-4o-2024-08-06, our newest model in the gpt-4o series.

Aug 1Update

Launched Admin and Audit Log APIs, allowing customers to programmatically administer their organization and monitor changes using the audit logs. Audit logging must be enabled within settings.

July, 2024

Jul 24Update

Launched self-serve SSO configuration, allowing Enterprise customers on custom and unlimited billing to set up authentication against their desired IDP.

Jul 23Update

Launched fine-tuning for GPT-4o mini, enabling even higher performance for specific use cases.

Jul 18Update

Released GPT-4o mini, our affordable an intelligent small model for fast, lightweight tasks.

Jul 17Update

Released Uploads to upload large files in multiple parts.

June, 2024

Jun 6Update

Parallel function calling can be disabled in Chat Completions and the Assistants API by passing parallel_tool_calls=false.

.NET SDK launched in Beta.

Jun 3Update

Added support for file search customizations.

May, 2024

May 15Update

Added support for archiving projects . Only organization owners can access this functionality.

Added support for setting cost limits on a per-project basis for pay as you go customers.

May 13Update

Released GPT-4o in the API. GPT-4o is our fastest and most affordable flagship model.

May 9Update

Added support for image inputs to the Assistants API.

May 7Update

Added support for fine-tuned models to the Batch API .

May 6Update

Added stream_options: {"include_usage": true} parameter to the Chat Completions and Completions APIs. Setting this gives developers access to usage stats when using streaming.

May 2Update

Added a new endpoint to delete a message from a thread in the Assistants API.

April, 2024

Apr 29Update

Added a new function calling option tool_choice: "required" to the Chat Completions and Assistants APIs.

Added a guide for the Batch API and Batch API support for embeddings models

Apr 17Update

Introduced a series of updates to the Assistants API , including a new file search tool allowing up to 10,000 files per assistant, new token controls, and support for tool choice.

Apr 16Update

Introduced project based hierarchy for organizing work by projects, including the ability to create API keys and manage rate and cost limits on a per-project basis (cost limits available only for Enterprise customers).

Apr 15Update

Released Batch API

Apr 9Update

Released GPT-4 Turbo with Vision in general availability in the API

Apr 4Update

Added support for seed in the fine-tuning API

Added support for checkpoints in the fine-tuning API

Added support for adding Messages when creating a Run in the Assistants API

Apr 1Update

Added support for filtering Messages by run_id in the Assistants API

March, 2024

Mar 29Update

Added support for temperature and assistant message creation in the Assistants API

Mar 14Update

Added support for streaming in the Assistants API

February, 2024

Feb 9Update

Added timestamp_granularities parameter to the Audio API

Feb 1Update

Released gpt-3.5-turbo-0125, an updated GPT-3.5 Turbo model

January, 2024

Jan 25Update

Released embedding V3 models and an updated GPT-4 Turbo preview

Added dimensions parameter to the Embeddings API

December, 2023

Dec 20Update

Added additional_instructions parameter to run creation in the Assistants API

Dec 15Update

Added logprobs and top_logprobs parameters to the Chat Completions API

Dec 14Update

Changed function parameters argument on a tool call to be optional

November, 2023

Nov 30Update

Released OpenAI Deno SDK

Nov 6Update

Released GPT-4 Turbo Preview, updated GPT-3.5 Turbo, GPT-4 Turbo with Vision, Assistants API, DALL·E 3 in the API, and text-to-speech API

Deprecated the Chat Completions functions parameter in favor of tools

Released OpenAI Python SDK V1.0

October, 2023

Oct 16Update

Added encoding_format parameter to the Embeddings API

Added max_tokens to the Moderation models

Oct 6Update

Added function calling support to the Fine-tuning API