Feature availability by LLM key, provider, and cloud
This page documents which model providers and which Glean Assistant features are available depending on:
- Key type — the Glean Universal Model Key (Glean-managed) or Customer Key (BYOK), where you bring your own provider key.
- Cloud environment — Glean Hosted or Customer Hosted on GCP or AWS.
- LLM provider — OpenAI, Azure OpenAI, Google Vertex AI (Gemini and Claude), or Amazon Bedrock (Claude and Amazon Nova).
Use these matrices to understand what changes when you move from the Glean Universal Model Key to your own key, and to plan which models you need to enable for a given feature.
With the Glean Universal Model Key, Glean manages connectivity to all supported providers regardless of your cloud environment. With Customer Key (BYOK), provider access is limited to cloud-native providers because cross-cloud access is not supported.
1. Provider availability by key type and cloud
Which LLM hosting providers you can configure depends on your deployment mode and key type.
| Hosting provider | Glean Universal Model Key | Customer Key — GCP-based deployment | Customer Key — AWS-based deployment |
|---|---|---|---|
| OpenAI | ✅ | ✅ | ✅ |
| Azure OpenAI | ✅ | ✅ | ✅ |
| Google Vertex AI | ✅ | ✅ | ❌ |
| Amazon Bedrock | ✅ | ❌ | ✅ |
- GCP-based deployment includes Glean Hosted and Customer Hosted on GCP. AWS-based deployment refers to Customer Hosted on AWS.
- Anthropic (Claude) models are accessible through either Google Vertex AI or Amazon Bedrock, depending on your available providers.
- With Customer Key (BYOK), provider access is limited to cloud-native providers because cross-cloud access is not supported. GCP-based deployments cannot use AWS-hosted models (for example, Amazon Bedrock), and AWS-based deployments cannot use Vertex AI.
- For Customer Key deployments, the large, small, agentic, and fast agentic model defaults must come from the same provider. Image generation models may use a different provider.
2. Feature availability by key type
This table displays Glean AI features whose availability or required models differ by key type or cloud. Select a feature name to learn more about the feature and any limitations.
This table does not display features that are available on both key types and all providers.
On the Glean Universal Model Key, Glean automatically picks best-in-class default models for you; on Customer Key, admins choose their own. See Model choice.
| Feature | Glean Universal Model Key | Customer Key (BYOK) | Required model(s) | Provider |
|---|---|---|---|---|
| Real-time voice | GA | GA | GPT Realtime 2.1 / GPT-4o Transcribe | OpenAI, Azure OpenAI |
| Meeting Notes | GA | Not supported | Standard Assistant models | Any |
| Deep Research | GA | GA | GPT-5.1 (reasoning) | OpenAI; Brave Web Search (web content) |
| Image generation | GA | GA | GPT Image 2 / Nano Banana 2 / Nano Banana Pro / GPT Image 1.5 | OpenAI, Azure OpenAI, Google Vertex AI |
| Code generation (Code Writer) | GA | Conditional | Claude | Amazon Bedrock, same project (BYOK) |
| Memory & personalization | GA (GCP only) | GA (GCP only) | Standard Assistant models | Any |
| Contextual images in responses | GA (GCP and AWS) | GA (GCP and AWS) | Standard Assistant models | Any |
| Agent Sandbox & Programmatic Tool Calling (PTC) | GA | GA | GPT-5.4+, Claude Sonnet 4.6, Claude Opus 4.6+, or Gemini Pro 3.1 | Any |
| Agentic Search Model | GA | GA | NVIDIA Nemotron-3 Nano (30B-A3B) | Glean-managed (Vertex AI / SageMaker) |
| LLM / Model Insights (BYOK) | Not supported | GA | N/A | N/A |
| Best-fit default model selection | GA | Not supported | Glean auto model selection | Any |
3. Agentic engine mapping to keys and providers
The agentic engine that powers Glean Assistant runs on GPT-5 or Claude Sonnet models that are supported by your deployment:
- GPT-5 is available via Glean Key or Customer Key through OpenAI Direct or Azure OpenAI.
- Claude Sonnet 5 is available in Glean Assistant and Agents when enabled in the Model Hub.
- Glean Key customers are automatically migrated to GPT-5. Customer Key customers must manually migrate their configured models to supported GPT-5 or Claude Sonnet models to see a performance difference.
For Glean Assistant on Customer Key, Gemini Pro 3.1 is not available — use Gemini Pro Custom Tools 3.1 instead. Gemini Pro 3.1 remains available for Glean Assistant through the Glean Universal Model Key.
4. Model upgrades, failover, and deprecation
- Glean Universal Model Key: Glean manages model configuration, provisioning, upgrades, and provider failover.
- Customer Key (BYOK): Your team provisions capacity and manages model upgrades and provider failover. Quota is not a guarantee of capacity; for guaranteed capacity, contact your provider about provisioned throughput.
- When a model is deprecated, existing deployments are automatically migrated to the listed replacement. Review the Model Hub deprecation table to confirm your configured models are current.
See also
- Supported LLMs — supported models, availability, and pricing.
- Configure LLMs in the Model Hub — provider and model configuration.
- Real-time voice — setup and limitations.
- Image generation in Glean — supported image models and setup.
- Memory and personalization — admin configuration and known limitations.
- Agent Sandbox and Programmatic Tool Calling — setup and supported models.
- LLM Insights — monitoring for Customer Key (BYOK) deployments.