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The Atlas

Providers

All providers are reached through their OpenAI-compatible APIs.

ID Name Tier Default model Base URL Key variable
openrouter OpenRouter free openrouter/free https://openrouter.ai/api/v1 OPENROUTER_API_KEY
gemini Google Gemini free gemini-2.5-flash https://generativelanguage.googleapis.com/v1beta/openai GEMINI_API_KEY
groq Groq free llama-3.3-70b-versatile https://api.groq.com/openai/v1 GROQ_API_KEY
cerebras Cerebras free llama-3.3-70b https://api.cerebras.ai/v1 CEREBRAS_API_KEY
mistral Mistral free mistral-small-latest https://api.mistral.ai/v1 MISTRAL_API_KEY
github GitHub Models free openai/gpt-4.1-mini https://models.github.ai/inference GITHUB_TOKEN
nvidia NVIDIA NIM free meta/llama-3.3-70b-instruct https://integrate.api.nvidia.com/v1 NVIDIA_API_KEY
sambanova SambaNova free Meta-Llama-3.3-70B-Instruct https://api.sambanova.ai/v1 SAMBANOVA_API_KEY
omniroute OmniRoute local set in OmniRoute http://localhost:20128/v1 OMNIROUTE_API_KEY (optional)
ollama Ollama local llama3.2 http://localhost:11434/v1 none
openai OpenAI paid gpt-4.1-mini https://api.openai.com/v1 OPENAI_API_KEY
anthropic Anthropic Claude paid claude-sonnet-5-5 https://api.anthropic.com/v1 ANTHROPIC_API_KEY

Free means the provider has a free tier usable with a personal key. Limits are set by each provider and change over time.

Key pages

Section titled “Key pages”
ID Where to get a key
openrouter openrouter.ai/keys, or one-click sign-in in atlas connect
gemini aistudio.google.com/apikey
groq console.groq.com/keys
cerebras cloud.cerebras.ai
mistral console.mistral.ai/api-keys
github github.com/settings/tokens
nvidia build.nvidia.com
sambanova cloud.sambanova.ai/apis
omniroute github.com/diegosouzapw/OmniRoute
ollama ollama.com/download
openai platform.openai.com/api-keys
anthropic console.anthropic.com/settings/keys

Changing defaults

Section titled “Changing defaults”
Terminal window
atlas use groq llama-3.3-70b-versatile     # default model for groq, and select groq
atlas models groq                          # see what else is available

To point a provider at another URL (for example Ollama on another machine), set baseURLs in config.json:

{ "baseURLs": { "ollama": "http://192.168.1.20:11434/v1" } }