About this plugin
4. 4.
Opace AI Hub is independently developed by Opace Digital Agency and is not affiliated with, endorsed by or sponsored by OpenAI, Anthropic or Google.
Opace AI Hub gives compatible WordPress plugins one shared connection to AI providers. Add an OpenAI, Anthropic Claude or Google Gemini key once, test it, and let compatible plugins use the same saved configuration.
Opace AI Hub is independently installable infrastructure, not a content generator. AI Scribe is a separate companion plugin that sends content-generation requests through it.
Opace AI Hub product page
org
AI Scribe on GitHub
Opace AI Hub on GitHub
Why Opace AI Hub was built
As separate WordPress plugins added AI features, each one risked duplicating provider settings, model lists, request formats, prompt storage and cost calculations. Opace AI Hub moves that security-sensitive infrastructure into one maintained plugin. Site administrators get one place to rotate keys, choose models and review usage, while compatible plugins stay focused on their own workflows.
How AI Scribe uses Opace AI Hub
AI Scribe owns article planning, writing, SEO metadata, editorial review and WordPress publishing. Opace AI Hub supplies its encrypted credentials, provider and model selection, normalised generation requests, reusable prompts, model capabilities and usage records.
org
AI Scribe on GitHub
Opace AI Hub on GitHub
What Opace AI Hub provides
- One settings screen for supported provider credentials
- Live model discovery based on the models available to your provider account
- Provider-aware handling for text, images and structured output
- A grouped prompt library with import and export
- Request, token and published-rate cost estimates by provider and model
- A PHP API for compatible WordPress plugins
- Encrypted credential storage and an explicit data-retention choice on uninstall
Supported providers
- OpenAI – text and image generation through the Chat Completions, Responses and Images APIs
- Anthropic Claude – text generation through the Messages API; Anthropic does not provide image generation
- Google Gemini – text and image generation through the Gemini API
Model lists are fetched using your key. Providers may make different models available to different accounts, so two sites can show different choices.
Current providers and live model catalogue
Live catalogue snapshot: 23 August 2026 at 13:03 BST (UTC+1). The Hub refreshed configured provider accounts at that time and received 132 OpenAI, 10 Anthropic Claude and 50 Google Gemini identifiers. Provider access varies by account, region and rollout; Settings always uses the current list returned for your own key.
The built-in registry is only a fallback and metadata source when live discovery is unavailable.
Multimodal text models selectable in the Hub
These generate text and accept visual input. Image input does not make them dedicated image generators.
- OpenAI (45): gpt-5.6-sol, gpt-5.6-terra, gpt-5.6-luna, gpt-5.5-pro, gpt-5.5-pro-2026-04-23, gpt-5.5, gpt-5.5-2026-04-23, gpt-5.4-pro, gpt-5.4-pro-2026-03-05, gpt-5.4, gpt-5.4-2026-03-05, gpt-5.4-mini, gpt-5.4-mini-2026-03-17, gpt-5.4-nano, gpt-5.4-nano-2026-03-17, gpt-5.2-pro, gpt-5.2-pro-2025-12-11, gpt-5.2, gpt-5.2-2025-12-11, gpt-5.1, gpt-5.1-2025-11-13, gpt-5-pro, gpt-5-pro-2025-10-06, gpt-5, gpt-5-2025-08-07, gpt-5-mini-2025-08-07, gpt-5-mini, gpt-5-nano-2025-08-07, gpt-4.1-2025-04-14, gpt-4.1, gpt-4.1-mini-2025-04-14, gpt-4.1-mini, gpt-4.1-nano, gpt-4.1-nano-2025-04-14, gpt-4o-2024-05-13, gpt-4o-2024-08-06, gpt-4o-2024-11-20, gpt-4-0613, gpt-4o, gpt-4-turbo, gpt-4-turbo-2024-04-09, gpt-4o-mini-2024-07-18, gpt-4o-mini, o3, o3-mini
- Anthropic Claude (7): claude-opus-5, claude-opus-4-8, claude-opus-4-7, claude-opus-4-6, claude-sonnet-4-6, claude-opus-4-5-20251101, claude-sonnet-4-5-20250929
- Google Gemini (6): gemini-3.6-flash, gemini-3.1-pro-preview, gemini-3.1-pro-preview-customtools, gemini-2.5-pro, gemini-2.5-flash, gemini-pro-latest
Text and reasoning models selectable in the Hub
- OpenAI (17): gpt-5-nano, gpt-4, gpt-3.5-turbo-0125, gpt-3.5-turbo-1106, gpt-3.5-turbo-16k, gpt-3.5-turbo, o4-mini-2025-04-16, o4-mini, o3-pro, o3-pro-2025-06-10, o3-2025-04-16, o3-mini-2025-01-31, o1-pro, o1-pro-2025-03-19, o1, o1-2024-12-17, chat-latest
- Anthropic Claude (3): claude-sonnet-5, claude-fable-5, claude-haiku-4-5-20251001
- Google Gemini (11): gemini-3.7-flash, gemini-3.5-flash, gemini-3.5-flash-lite, gemini-3.1-flash-lite-preview, gemini-3.1-flash-lite, gemini-3-flash-preview, gemini-2.5-flash-lite, gemini-flash-latest, gemini-flash-lite-latest, gemma-4-26b-a4b-it, gemma-4-31b-it
Image-generation models selectable in the Hub
- OpenAI (6): gpt-image-2, gpt-image-2-2026-04-21, gpt-image-1.5, gpt-image-1, gpt-image-1-mini, chatgpt-image-latest
- Google Gemini (7): gemini-3.1-flash-image, gemini-3.1-flash-image-preview, gemini-3.1-flash-lite-image, gemini-3-pro-image, gemini-3-pro-image-preview, gemini-2.5-flash-image, nano-banana-pro-preview
- Anthropic Claude: no image-generation models were returned.
Live specialist models catalogued, not currently invoked
The Hub retains these live identifiers for capability-aware add-ons, but its present public helpers only execute text, structured-output and image requests. Listing a specialist model here does not claim a working Hub request path for that category.
- OpenAI audio, speech and realtime (31): gpt-4o-transcribe, gpt-4o-transcribe-diarize, gpt-4o-mini-transcribe, gpt-4o-mini-transcribe-2025-03-20, gpt-4o-mini-transcribe-2025-12-15, gpt-4o-mini-tts, gpt-4o-mini-tts-2025-03-20, gpt-4o-mini-tts-2025-12-15, gpt-realtime-2.1, gpt-realtime-2.1-mini, gpt-realtime-2, gpt-audio-1.5, gpt-realtime-1.5, gpt-transcribe, gpt-audio, gpt-audio-2025-08-28, gpt-audio-mini, gpt-audio-mini-2025-10-06, gpt-audio-mini-2025-12-15, gpt-live-transcribe, gpt-realtime, gpt-realtime-2025-08-28, gpt-realtime-mini, gpt-realtime-mini-2025-12-15, gpt-realtime-translate, gpt-realtime-whisper, whisper-1, tts-1, tts-1-1106, tts-1-hd, tts-1-hd-1106
- Gemini audio, music and live (10): gemini-3.5-live-translate-preview, gemini-3.1-flash-live-preview, gemini-3.1-flash-tts-preview, gemini-2.5-pro-preview-tts, gemini-2.5-flash-native-audio-latest, gemini-2.5-flash-native-audio-preview-09-2025, gemini-2.5-flash-native-audio-preview-12-2025, gemini-2.5-flash-preview-tts, lyria-3-pro-preview, lyria-3-clip-preview
- Embeddings (6): OpenAI text-embedding-3-small, text-embedding-3-large, text-embedding-ada-002; Gemini gemini-embedding-2-preview, gemini-embedding-2, gemini-embedding-001
- Video (5): OpenAI sora-2-pro, sora-2; Gemini veo-3.1-fast-generate-preview, veo-3.1-generate-preview, veo-3.1-lite-generate-preview
- OpenAI code (6): gpt-5.3-codex, gpt-5.2-codex, gpt-5.1-codex-max, gpt-5.1-codex, gpt-5.1-codex-mini, gpt-5-codex
- OpenAI research and search (10): o4-mini-deep-research, o4-mini-deep-research-2025-06-26, o3-deep-research, o3-deep-research-2025-06-26, gpt-5-search-api, gpt-5-search-api-2025-10-14, gpt-4o-search-preview, gpt-4o-search-preview-2025-03-11, gpt-4o-mini-search-preview, gpt-4o-mini-search-preview-2025-03-11
- Gemini research (3): deep-research-max-preview-04-2026, deep-research-preview-04-2026, deep-research-pro-preview-12-2025
- Computer-use and agent models (4): OpenAI computer-use-preview, computer-use-preview-2025-03-11; Gemini gemini-2.5-computer-use-preview-10-2025, antigravity-preview-05-2026
- Gemini robotics and question answering (4): gemini-robotics-er-2-preview, gemini-robotics-er-2-streaming-preview, gemini-robotics-er-1.6-preview, aqa
- OpenAI moderation (2): omni-moderation-2024-09-26, omni-moderation-latest
- Legacy or provider-specific text IDs excluded from the prose picker (9): OpenAI gpt-5.3-chat-latest, gpt-5.2-chat-latest, gpt-5.1-chat-latest, gpt-5-chat-latest, gpt-3.5-turbo-instruct, gpt-3.5-turbo-instruct-0914, babbage-002, davinci-002; Gemini gemini-omni-flash-preview
Dynamic model defaults
A valid saved choice is always preserved. If it is missing or retired, Opace AI Hub ranks the configured account’s live list within the intended family: newest Terra with medium reasoning for OpenAI writing; newest Claude Opus with medium effort for Anthropic writing; newest non-Lite Gemini Flash with medium thinking for Gemini writing; newest GPT Image for OpenAI images; and newest Gemini Flash Image / Nano Banana for Gemini images.
1-flash-image (Nano Banana 2). Live discovery takes precedence, so a later model in the same preferred family can become the default without a plugin update. Opace AI Hub never silently replaces an explicit valid choice made by an administrator.
Compatible plugins
- AI Scribe 3.0 or later – AI content creation and SEO optimisation. Hub 1.0.13 or newer supports AI Scribe 3.2.36’s corrected install and upgrade flow. The Add-ons screen installs the public AI Scribe package after explicit consent, then waits for the administrator to activate it from the same card.
Developers can also use Opace AI Hub’s PHP API in their own plugins.
What comes next
AI-Imagen is a planned image-generation workflow intended to use Opace AI Hub. It is not included in this release and has no announced release date. Other compatible plugins can use the same PHP API as the project grows.
Security and privacy
Provider keys are stored in the ai_core_settings option on your WordPress site. They are encrypted at rest with AES-256-CBC, using a random initialisation vector per value and a key derived from the site’s WordPress salts. If encryption fails, Opace AI Hub does not save the key as plain text.
php makes saved keys unreadable. Re-enter them after a salt rotation.
Opace AI Hub does not include analytics or user tracking. Generation data is sent only when an administrator tests a provider or a compatible plugin requests a generation.
External services
Opace AI Hub connects to the following third-party services. Each provider bills you directly under the terms of your account.
OpenAI
Used when an administrator tests an OpenAI key or refreshes its model list, and when OpenAI is chosen for a generation. Opace AI Hub sends the OpenAI API key, requested model, request settings and prompt or image instructions supplied by the calling plugin. com.
- OpenAI Terms of Use
- OpenAI Privacy Policy
Anthropic Claude
Used when an administrator tests an Anthropic key or refreshes its model list, and when Anthropic is chosen for a generation. Opace AI Hub sends the Anthropic API key, requested model, request settings and prompt supplied by the calling plugin. com.
- Anthropic Consumer Terms
- Anthropic Privacy Policy
Google Gemini
Used when an administrator tests a Gemini key or refreshes its model list, and when Gemini is chosen for a generation. Opace AI Hub sends the Gemini API key, requested model, request settings and prompt or image instructions supplied by the calling plugin. com.
- Gemini API Additional Terms of Service
- Google Privacy Policy
LiteLLM public model catalogue
Used when Opace AI Hub needs current published pricing for a discovered model and when an administrator selects Refresh Model Pricing. ai. API keys, prompts, generated content, site details and usage totals are not sent.
Successful results are cached for 12 hours. Opace AI Hub uses its bundled catalogue when no current result is available and shows Cost unavailable rather than treating an unknown price as zero.
- LiteLLM catalogue and licence
- LiteLLM privacy and data security
org plugin directory
Used only when an administrator chooses Install AI Scribe on the Add-ons screen. Opace AI Hub asks the WordPress plugin API for AI Scribe’s public package and passes its download URL to WordPress’s core installer. org receives the normal plugin-information and package-download requests; Opace AI Hub does not send API keys, prompts, generated content, site settings or usage records.
Installation stops for the administrator to choose Activate AI Scribe and continue.
org
Cost figures shown by Opace AI Hub are published-rate estimates. Free tiers, cached-token rates, batch pricing, negotiated rates and provider billing changes can make an invoice differ from the estimate.
Video demonstration
Watch the current Opace AI Hub walkthrough, covering provider setup, live model discovery, the Prompt Library, usage statistics and companion-plugin integration.
Opace and related links
- AI Scribe on WordPress.org
- AI Scribe on GitHub
- Opace AI Hub on GitHub
- Opace Digital Agency
- Web design and development
- WordPress development
- AI SEO services