Models and BYOK
Configure provider keys, choose supported models, and call OpenUI Cloud with the Responses API.
OpenUI Cloud supports both managed model access and bring your own key (BYOK). Both use the same provider/model identifiers.
Bring your own key
Add an OpenAI, Anthropic, or Google API key from the BYOK page in the Thesys console. BYOK is available on every plan, including the free tier.
Only organization admins can add or update provider keys. Once a key is added, every member of the organization can use models from that provider through BYOK.
Provider-specific billing
BYOK applies only to the matching provider. For example, if your organization adds an OpenAI key, requests to OpenAI models use that key. Requests to Anthropic or Google Vertex AI models are billed against OpenUI Cloud credits instead. If the organization has no credits, those requests fail with an out-of-credits error; otherwise, its credits are used for the requests.
Supported BYOK models
Model identifiers follow the provider/model convention. For example, use openai/gpt-5.6-sol, not gpt-5.6-sol.
| Provider | Model name | Model identifier |
|---|---|---|
| Anthropic | Claude Opus 5 | anthropic/claude-opus-5 |
| Anthropic | Claude Sonnet 5 | anthropic/claude-sonnet-5 |
| Anthropic | Claude Opus 4.7 | anthropic/claude-opus-4-7 |
| Gemini 3.6 Flash | google/gemini-3.6-flash | |
| Gemini 3.5 Flash | google/gemini-3.5-flash | |
| Gemini 3.1 Pro Preview | google/gemini-3.1-pro-preview | |
| OpenAI | GPT-5.6 Sol | openai/gpt-5.6-sol |
| OpenAI | GPT-5.5 | openai/gpt-5.5 |
| OpenAI | GPT-5.4 | openai/gpt-5.4 |
This is an example list; all models available from these providers are supported with BYOK.