OpenAI
The leading commercial LLM provider, offering GPT-4, GPT-4o, o1, and other models via API. OpenAI defined many standards in the LLM space—their API format is the de facto standard, and their models set capability benchmarks.
Implements
Concepts this tool claims to implement:
- Large Language Model primary
GPT-4, GPT-4o, GPT-4 Turbo, and earlier GPT-3.5 models. Leading capability on most benchmarks.
- Function Calling primary
Pioneered function calling API (tools parameter). Parallel function calls, JSON mode, structured outputs.
- Embedding primary
text-embedding-3-small and text-embedding-3-large models. Industry standard embedding dimensions.
- Multimodal Model primary
GPT-4V, GPT-4o with vision capabilities. Image input support in Chat Completions API.
- Chat Completions API primary
Defined the /v1/chat/completions API format that became the industry standard. Messages with roles, streaming, tools.
Integration Surfaces
Details
- Vendor
- OpenAI
- License
- proprietary
- Runs On
- cloud
- Used By
- human, agent, system
Links
Notes
OpenAI is the dominant LLM provider by usage and mindshare. Their API format has become the standard—most other providers offer compatible endpoints. The o1 "reasoning" models represent a new paradigm with extended thinking.