OpenAI
OpenAI is the frontier AI lab whose conspicuous absence this spoke needed to fix — the proprietary, closed-weight counterweight to the open-weight wave (open-weight-models). Source: Wikipedia (landscape background; pricing/rankings are volatile — see llm-api-pricing/llm-benchmarks).
Models & deployment
- GPT series (GPT-3 → GPT-5.2) and the o-series reasoning models (o1, o3) — plus multimodal DALL·E / Sora / Whisper. All proprietary / closed-weight. (Whisper’s open-weight STT release is paged in speech-audio-wiki — the exception to the “all closed” rule.)
- Access via paid usage-based API, ChatGPT tiers (Plus ~$20/mo, Pro ~$200/mo), and enterprise deals.
Why it anchors the landscape
- Frontier incumbent: ChatGPT (Nov 2022) “credited with catalyzing the AI boom,” the fastest-growing consumer app in history — the premium-reasoning pole the “does the frontier premium survive?” tension is measured against.
- The de-facto API standard: “OpenAI’s API has become a de-facto interoperability standard” — the shape challengers like deepseek deliberately conform to (OpenAI-compatible) to erase switching costs.
- Microsoft partnership: >$13B invested, exclusive Azure compute, Copilot/Office integration.
Related
llm-provider · llm-api-pricing · llm-benchmarks · open-weight-models · deepseek · google · anthropic