Text providers

The text provider creates outlines, writes slide content, and powers AI-assisted edits. Set LLM to one provider identifier and supply that provider’s required credentials and model.

Supported providers

Provider	`LLM` value	Required settings	Common optional settings
OpenAI	`openai`	`OPENAI_API_KEY`	`OPENAI_MODEL` (default `gpt-4.1`)
DeepSeek	`deepseek`	`DEEPSEEK_API_KEY`	`DEEPSEEK_MODEL`, `DEEPSEEK_BASE_URL`
Google Gemini	`google`	`GOOGLE_API_KEY`	`GOOGLE_MODEL`
Google Vertex AI	`vertex`	`VERTEX_API_KEY`, or project credentials	`VERTEX_MODEL`, `VERTEX_PROJECT`, `VERTEX_LOCATION`, `VERTEX_BASE_URL`
Azure OpenAI	`azure`	API key, model, API version, and endpoint or base URL	Deployment name
Amazon Bedrock	`bedrock`	Region, model, and one supported AWS credential method	Session token or profile
OpenRouter	`openrouter`	`OPENROUTER_API_KEY`, `OPENROUTER_MODEL`	`OPENROUTER_BASE_URL`
Fireworks	`fireworks`	`FIREWORKS_API_KEY`, `FIREWORKS_MODEL`	`FIREWORKS_BASE_URL`
Together AI	`together`	`TOGETHER_API_KEY`, `TOGETHER_MODEL`	`TOGETHER_BASE_URL`
Cerebras	`cerebras`	`CEREBRAS_API_KEY`	`CEREBRAS_MODEL`, `CEREBRAS_BASE_URL`
Anthropic	`anthropic`	`ANTHROPIC_API_KEY`	`ANTHROPIC_MODEL`
LiteLLM	`litellm`	`LITELLM_BASE_URL`, `LITELLM_MODEL`	`LITELLM_API_KEY`
LM Studio	`lmstudio`	`LMSTUDIO_BASE_URL`, `LMSTUDIO_MODEL`	`LMSTUDIO_API_KEY`
Ollama	`ollama`	`OLLAMA_MODEL`	`OLLAMA_URL`, `START_OLLAMA`
Custom compatible API	`custom`	`CUSTOM_LLM_URL`, `CUSTOM_MODEL`	`CUSTOM_LLM_API_KEY`
ChatGPT through Codex	`codex`	Interactive OAuth	`CODEX_MODEL`

Set CAN_CHANGE_KEYS=false to prevent provider keys from being changed in the UI. Use this provider when you want to authenticate with an existing free or paid ChatGPT account instead of an OpenAI API key.

LLM=codex
CODEX_MODEL=gpt-5.5

Docker must publish the OAuth callback port in addition to the application port:

--publish 5001:80 --publish 1455:1455

Open Presenton, select Sign in with ChatGPT, and complete the browser flow. OpenAI redirects the browser to http://localhost:1455/auth/callback, so omitting the callback mapping prevents containerized sign-in from completing. The source repository’s Compose services already publish this port.

Port 1455 is only for ChatGPT/Codex OAuth. The REST API and MCP server both use the normal Presenton web port.

Complete ChatGPT/Codex recipe

See Docker Run, Compose, supported model identifiers, and remote-host port forwarding.

Hosted-provider examples

OpenAI
Google Gemini
Anthropic
OpenRouter

LLM=openai
OPENAI_API_KEY=replace-with-your-key
OPENAI_MODEL=gpt-4.1

LLM=google
GOOGLE_API_KEY=replace-with-your-key
GOOGLE_MODEL=models/gemini-2.0-flash

LLM=anthropic
ANTHROPIC_API_KEY=replace-with-your-key
ANTHROPIC_MODEL=claude-3-5-sonnet-20241022

LLM=openrouter
OPENROUTER_API_KEY=replace-with-your-key
OPENROUTER_MODEL=openai/gpt-4o
OPENROUTER_BASE_URL=https://openrouter.ai/api/v1

Cloud-provider authentication

Vertex AI

Use either an API key or Google Cloud project authentication—not both.

API key
Google Cloud project

LLM=vertex
VERTEX_API_KEY=replace-with-your-key
VERTEX_MODEL=gemini-2.5-flash

LLM=vertex
VERTEX_PROJECT=your-project-id
VERTEX_LOCATION=us-central1
VERTEX_MODEL=gemini-2.5-flash

Azure OpenAI

LLM=azure
AZURE_OPENAI_API_KEY=replace-with-your-key
AZURE_OPENAI_MODEL=gpt-4.1
AZURE_OPENAI_API_VERSION=2024-10-21
AZURE_OPENAI_ENDPOINT=https://YOUR-RESOURCE.openai.azure.com

Provide at least one supported endpoint or base URL. If your Azure configuration uses a deployment name distinct from the model, set the corresponding deployment variable as well.

Configure Amazon Bedrock

Choose an authentication method, model ID or inference profile, and the required IAM permissions.

Local and compatible providers

Ollama

LLM=ollama
OLLAMA_URL=http://host.docker.internal:11434
OLLAMA_MODEL=llama3.2:3b
START_OLLAMA=false

LM Studio

LLM=lmstudio
LMSTUDIO_BASE_URL=http://host.docker.internal:1234
LMSTUDIO_MODEL=openai/gpt-oss-20b

Presenton appends /v1 to the LM Studio base URL when needed.

Custom OpenAI-compatible API

LLM=custom
CUSTOM_LLM_URL=https://gateway.example.com/v1
CUSTOM_LLM_API_KEY=replace-with-your-key
CUSTOM_MODEL=your-model-id

Use DISABLE_THINKING=true when a compatible model’s reasoning mode causes unwanted behavior. Use EXTENDED_REASONING only with a provider and model that supports it.

Apply and test changes

Restart the container after changing environment variables:

docker compose up --detach --force-recreate production
docker compose logs --tail 100 production

Generate a short test presentation before relying on a new model in production. Provider access, supported model names, regional availability, and account quotas can all affect generation.

A model being available from a provider does not guarantee that your account can invoke it. Confirm access and quotas in the provider console when authentication succeeds but generation fails.

Get started

Learn the basics

Features

Tutorials

API guides

Deploy and configure

Develop and contribute

This release

Supported providers

Complete ChatGPT/Codex recipe

Hosted-provider examples

Cloud-provider authentication

Vertex AI

Azure OpenAI

Configure Amazon Bedrock

Local and compatible providers

Ollama

LM Studio

Custom OpenAI-compatible API

Apply and test changes

​Supported providers

​ChatGPT sign-in through Codex

Complete ChatGPT/Codex recipe

​Hosted-provider examples

​Cloud-provider authentication

​Vertex AI

​Azure OpenAI

Configure Amazon Bedrock

​Local and compatible providers

​Ollama

​LM Studio

​Custom OpenAI-compatible API

​Apply and test changes

Supported providers

ChatGPT sign-in through Codex

Hosted-provider examples

Cloud-provider authentication

Vertex AI

Azure OpenAI

Local and compatible providers

Ollama

LM Studio

Custom OpenAI-compatible API

Apply and test changes