Ollama vs OpenAI API
Ollama is listed under Inference platforms, OpenAI API under Frontier labs. Each name links to the product's own site.
| Category | Inference platforms | Frontier labs |
|---|---|---|
| Pricing | Open source | Paid |
| Public code | Yes | No |
| Tags | ollama, local, self-hosted, cli | gpt, llm-api, reasoning, embeddings |
| Website | ollama.com | openai.com |
What Ollama does
Ollama downloads and runs open-weight models on a laptop or server, and exposes a local HTTP API. It supports macOS, Linux and Windows, and has a model library for common releases.
What OpenAI API does
OpenAI's developer platform. It serves the GPT family of text and reasoning models, plus image, speech and embeddings endpoints. Billing is per token, with a Responses API for building agents.
Other options
See all Inference platforms, or alternatives to Ollama and OpenAI API.